Sunny Island Catalgoue - Sinetech

Sunny Family 2008/2009 

The Future of Solar Technology

» Every PV System Is Unique. 

SMA Has the Right Solution for Every Application. 

SUNNY BOY 

1 to 5 kW 

SUNNY MINI CENTRAL 

5 to 11 kW 

SUNNY TOWER 

up to 66 kW 

SUNNY CENTRAL 

100 to 1120 kW 

Home Owner System 

up to 20 kW 

Commercial System 

10 kW up to the MW range 

Solar Power Plant 

100 kW up to the MW range 

SUNNY ISLAND 

2 to 5 kW 

SUNNY BACKUP 

2 to 5 kW 

SUNNY BEAM 

Wireless Monitoring Systems 

Stand-alone system 

up to 100 kW 

PV Electricity – Even in the 

Event of Grid Failure 

up to 100 kW 

Everything under Control 

for every PV system 

2

CONTENTS 

Foreword 

The Future of Solar Technology 

Our Customers Have a Choice 

10 

20 

36 

40 

48 

76 

94 

108 

132 

136 

140 

144 

170 

176 

Inverters without Transformers 

Sunny Mini Central 

Sunny Boy 

Inverters with Transformers 


Sunny Boy 

Sunny Tower 

Backup Systems 

Sunny Backup Set S to XL 

Central Inverters 

Sunny Central 

with transformer 

without transformer 

with MV technology 

Accessories 

Island Inverters 

Sunny Island 

Wind Energy Inverters 

Windy Boy 

Monitoring Systems 

Service 

Sunny PRO Club 

Solar Academy 

Know-how 

Central- or Decentralized?, The Optimal PV System Design, 

Sunny Design, OptiCool, Electronic Solar Switch, 

H5 Topology, SMA grid guard, PV System Technology 

References 

Glossary 

3

Günther Cramer, 

Chief Executive Officer and Board Spokesman 

Peter Drews, 

Chief Operations Officer 

Pierre-Pascal Urbon, 

Chief Marketing and Sales Officer 

Reiner Wettlaufer, 

Chief Finance Officer 

4

On the Road 

to the Energy Supply of the Future 

For years, the high technological standard and outstanding quality of our inverters have led to a 

continuously increasing demand for our products. In 2007, for the first time, we produced one 

gigawatt of total accumulated inverter power output within one year. By doing this, we significantly 

increased both our market share and our share of exports. SMA represents not just outstanding 

quality and exceptional innovative strength, but also the broadest spectrum of products on the 

market – we are the only manufacturer that offers solar inverters for all performance classes, installation 

sizes and module types. 

Innovative technologies assure increasing profitability 

In sunny regions, solar power is already cost-competitive with conventional peak power. This successful 

development would be unimaginable without the enormous technical advances in inverter 

technology, which makes up the "heart" of every solar power plant. SMA's accomplishments in 

this area in recent years include, for example, the efficiency increase of our inverters from 90 to 

98 percent, and at the same time a continuous reduction of the price per watt. In addition, we are 

represented locally in all the important solar markets around the world. 

New concepts for future demands 

The inverter continues to offer great potential in all fields of technology, and we are already working 

on exploiting this potential by developing new concepts including, for example, increasing the 

degree of efficiency to 99 percent. In the future, our solar inverters will also support grid control 

to ensure smooth operation. To address these new challenges, we are developing processes that 

enable the large-scale integration of decentralized solar power plants into the grid. The aspect of 

"total cost of ownership" also plays a significant role in our development strategy. Here, we are 

especially concentrating on the further simplification of installation and service. In addition, we are 

positioning ourselves for continued growth. This year, the largest inverter factory in the world, with 

a capacity of about three to four gigawatts, is being built at SMA‘s headquarters location. 

Please accompany us on the road toward an energy supply increasingly characterized by 

renewability. 

Günther Cramer 

CEO and Board Spokesman 

5

The Future of Solar Technology 

New technologies that make the worldwide deployment of photovoltaics increasingly economical, 

an enormous speed of innovation and exceptionally dedicated employees – SMA has been among 

the most successful companies in the field of solar technology for over 25 years. Here, more than 250 

engineers and technicians develop state-of-the-art solar inverters – the heart of every solar power plant. 

The Appropriate Inverter for Every Application, Around the World 

As the market and technology leader in the field of solar inverters, we have over 2,000 employees, and are 

represented in nine countries on four continents with our own subsidiaries. SMA offers the right inverter for every 

requirement around the world. Whether for grid-connected solar power plants, or the off-grid power systems in areas 

remote from the grid; whether for single home installations or entire solar power plants in the megawatt range: regardless 

of the type of module employed, SMA solar inverters are among the most efficient, user-friendly, and durable devices on 

the market and, among other things, are characterized by a peak efficiency of 98 %. 

Flexible Manufacturing and Continuous Innovations 

Our vision is to make photovoltaics competitive. We are championing this with continual price reductions and an exceptional 

service concept; with highly flexible manufacturing and production capacities of several gigawatts; and with technologies 

that ensure us an enormous technical lead. Whether H5 topology, OptiTrac, or the first integrated DC load disconnecting 

switch, the ESS (Electronic Solar Switch) – Innovations in systems technology come from SMA. 

6

Our Customers Have a Choice: 

Solar Inverters with or without Transformers 

SMA inverters are available with or 

without transformers. While the transformerless 

inverter has an unique efficiency 

and a low weight, the inverter 

with a transformer is first choice for all 

applications where an electric separation 

is desired. Furthermore, inverters 

with transformers are flexible in 

terms of module technology as they 

are available with different grounding 

options. 

No matter what inverter type you select, 

an inverter from SMA ensures 

that the plant operator receives a 

product with the highest level of technology. 

8

Solar Inverters from SMA: 

The Heart of every Solar Power System 

A solar power system is only as good 

as its inverter. It converts direct current 

from the solar cells to grid-compliant 

alternating current. Its quality determines 

the yield; it is the heart of the 

solar power system. 

Solar power systems are just as individual 

as the buildings on which they 

are installed. Therefore the installation 

engineer must be presented with 

a broad range from which to select 

the inverter which optimally suits the 

PV generator and which guarantees 

the highest yield. 

SMA offers not only outstanding technical 

know-how regarding your system, 

it is also the only manufacturer in 

the world to offer the appropriate solar 

inverter for each and any requirement: 

whether grid-connected or for 

stand-alone systems, from kilowatts to 

megawatts, regardless of module type. 

Flexibility 

SMA inverters can be installed indoors 

or outdoors. 

Reliability 

We develop and manufacture our inverters 

for a life span of more than 20 

years. 

Durability 

A five-year warranty as standard (extendable 

to ten years), telephone support 

via the Service Line and additional 

services such as exchange devices 

and comprehensive service contracts 

guarantee high investment security. 

Control 

All SMA inverters can be combined 

with a broad palette of the most diverse 

components for plant monitoring: 

from the wireless Sunny Beam to 

the Sunny WebBox for diagnosis and 

maintenance via the Internet from a 

PC anywhere in the world. 

Safety 

With the SMA grid guard and Electronic 

Solar Switch, SMA provides the 

most reliable safety systems currently 

on the market. 

Made in Germany 

All SMA inverters are developed and 

produced at the company headquarters 

in Niestetal, near Kassel, Germany. 

9

Technical Data 

Powerful 

• Efficiency > 98 % 

• OptiTrac MPP control for best 

tracking efficiency with MPP tracking 

• Highly efficient OptiCool ventilation 

system 

• Transformerless 

Safe 

• Integrated ESS DC load disconnecting 

unit 

• For inside and outside installation 

• Worldwide SMA service and 

SMA Service Line 

Input data 

Max. DC power (P DC, max ) 

Max. DC voltage (U DC, max ) 

PV voltage range, MPPT (U MPP ) 

Max. input current (I PV , max) 

DC voltage ripple (U PP ) 

Max. number of strings (parallel) 

DC isolator 

Thermally monitored varistors 

Ground fault monitoring 

Reverse polarity protection 

Output data 

Max. AC power (P AC, max ) 

Nominal AC output (P AC, nom ) 

THD of AC current 

Nominal AC voltage (U AC, nom ) 

Nominal AC frequency (f AC, nom ) 

Power factor (cos ϕ) 

Short-circuit proofing 

Grid connection 


9000TL 

9300 W 

700 V 

333 V – 500 V 

28 A 

< 10 % 

5 

plug connector, ESS 

yes 

yes 

short-circuit diode 

9000 W 

9000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 

yes, current control 

AC terminal 


10000TL 

10350 W 

700 V 

333 V – 500 V 

31 A 

< 10 % 

5 


yes 

yes 


10000 W 

10000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 


AC terminal 


11000TL 

11400 W 

700 V 

333 V – 500 V 

34 A 

< 10 % 

5 


yes 

yes 


11000 W 

11000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 


AC terminal 

Efficiency 

Max. efficiency 

Euro ETA 

98 % 

97.6 % 

98 % 

97.5 % 

98 % 

97.5 % 

Protection rating 

in accordance with DIN EN 60529 

IP65 

IP65 

IP65 

Mechanical data 

Width/height/depth (mm) 

Weight 

468 / 613 / 242 

35 kg 

468 / 613 / 242 

35 kg 

468 / 613 / 242 

35 kg 

12


SUNNY MINI CENTRAL 9000TL / 10000TL / 11000TL 

Three Times Single-Phase Results 

in the Best Three-Phase System 

The Sunny Mini Central 9000TL, 

10000TL and 11000TL extend SMA‘s 

reference class for high power inverters. 

The experience from the development 

of the Sunny Mini Central 

8000TL, the "Favorite Product" of the 

editorial staff of PHOTON resulted in 

outstanding reliability. Perfectly suitable 

for commercial PV systems, from 

27 kW up to the megawatt range, 

the single-phase devices can easily 

be combined to form three-phase systems. 

The advantages: compared with 

three-phase devices they have a lower 

weight and can be flexibly combined. 

Each single Sunny Mini Central harvests 

the highest energy yield due to 

the OptiTrac technology. Excellent efficiency, 

lowest specific price and an 

installation right next to the solar generator 

– an unbeatable combination 

that pays with each and every beam 

of sunlight. 

13


Powerful 


• OptiTrac MPP control for best 

tracking efficiency with MPP tracking 


system 


Safe 


unit 




Input data 




Max. input current (I PV, max ) 



DC isolator 




Output data 










6000TL 

6200 W 

700 V 

333 V – 500 V 

19 A 

< 10 % 

4 


yes 

yes 


6000 W 

6000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 


AC terminal 


7000TL 

7200 W 

700 V 

333 V – 500 V 

22 A 

< 10 % 

4 


yes 

yes 


7000 W 

7000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 


AC terminal 


8000TL 

8250 W 

700 V 

333 V – 500 V 

25 A 

< 10 % 

4 


yes 

yes 


8000 W 

8000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 


AC terminal 

Efficiency 


Euro ETA 

98 % 

97.7 % 

98 % 

97.7 % 

98 % 

97.7 % 



IP65 

IP65 

IP65 



Weight 

468 / 613 / 242 

31 kg 

468 / 613 / 242 

32 kg 

468 / 613 / 242 

33 kg 

14


SUNNY MINI CENTRAL 6000TL / 7000TL / 8000TL 

Favorite Product 

of the PHOTON Editorial Staff 

Peak efficiency rates of 98 % and a 

convenient specific cost: the transformerless 

Sunny Mini Central 6000TL, 

7000TL and 8000TL offer customers 

high yields. With the Sunny Mini 

Central family of transformerless inverters, 

implementing large plants beyond 

18 kWp and into the megawatt 

range has become simpler. The finely 

graded power classes, in 1 kW increments, 

are ideal for designing large 

solar power plants. The enclosure, 

which is outdoor-resistant, has IP65 

protection grading and thereby allows 

installation close to the generator, simplifying 

the cabling on the DC side. At 

the same time the availability of larger 

PV plants is significantly increased due 

to the decentralized structure. Flexibility 

in planning and a favorable cost 

to benefit ratio make the Sunny Mini 

Central the ideal solar inverter for midsized 

to large PV plants. 

We couldn't have said it better than 

the editors of PHOTON: "The Sunny 

Mini Central 8000TL test results are 

not only the best by far since the beginning 

of PHOTON's measurements 

at the start of the year; they are so 

exceptional that finding a better device 

in the market at this time is hardly 

imaginable." (PHOTON 10/2007) 

15


Leading-edge technology 

• Maximum efficiency of 97 % and 

wide input voltage range 

• ESS 

• Transformerless with H5 topology 

• OptiCool 

• OptiTrac MPP control 

• Multi-String technology 

Easy installation 

• Convenient front wiring compartment 

• Cabling without tools 

• Ergonomic design 

For 

• Easy country configuration 

• Multi-language display 

• Attractive SMA warranty program 

Communication 

• Bluetooth technology 

• Graphic display 

Input data 






Number of MPP trackers 

DC isolator 




Output data 









Efficiency 


Euro ETA 



Electronics / connection area 



Weight 

Sunny Boy 3000TL* 

3200 W 

550 V 

125 V – 440 V 

17 A 

< 10 % 

1 


yes 

yes 


3000 W 

3000 W 

< 4 % 

220 V – 240 V 

50 / 60 Hz 

1 


spring-type terminal 

97 % 

96 % 

IP65 / IP54 

470 / 445 / 180 

25 kg 

Sunny Boy 4000TL 

4300 W 

550 V 

125 V – 440 V 

2 x 15 A 

< 10 % 

2 


yes 

yes 


4000 W 

4000 W 

< 4 % 

220 V – 240 V 

50 / 60 Hz 

1 



97 % 

96.2 % 

IP65 / IP54 

470 / 445 / 180 

25 kg 


5300 W 

550 V 

125 V – 440 V 

2 x 15 A 

< 10 % 

2 


yes 

yes 


5000 W 

4600 W 

< 4 % 

220 V – 240 V 

50 / 60 Hz 

1 



97 % 

96.5 % 

IP65 / IP54 

470 / 445 / 180 

25 kg 

* Preliminary information, dated April 2008. Available end of 2008 

16


SUNNY BOY 3000TL / 4000TL / 5000TL 

Perfection Plus. Usability. 

The New Generation of SUNNY BOY 

The Sunny Boys 3000TL, 4000TL 

and 5000TL offer more communication 

options, are easier to use and 

more efficient than ever. A modern 

graphic display, indication of the 

daily values even after sunset, simplified 

installation concept and wireless 

communication via Bluetooth: the 

new Sunny Boys fulfill every wish. 

The Sunny Boy 4000TL and 5000TL 

have a peak efficiency of 97 % with 

a wide input voltage range. They are 

Multi-String devices that give you an 

optimal yield, maximum flexibility for 

the plant design and an outstanding 

module compatibility – this makes 

them the first choice for demanding 

generator layouts. 

17


Efficient 

• Efficiency 96 % 


Safe 


unit 




Input data 







DC isolator 




Output data 










2200 W 

600 V 

125 V – 480 V 

11 A 

< 10 % 

2 


yes 

yes 


2100 W 

1950 W 

< 4 % 

220 V – 240 V 

50 Hz 

1 


AC plug connector 

Sunny Boy 3300TL HC 

3440 W 

750 V 

125 V – 600 V 

11 A 

< 10 % 

2 


yes 

yes 


3300 W 

3000 W 

< 4 % 

220 V – 240 V 

50 Hz 

1 


AC terminal 

Efficiency 


Euro ETA 

96 % 

95.2 % 

96 % 

94.6 % 



IP65 

IP65 



Weight 

434 / 295 / 214 

16 kg 

470 / 490 / 225 

28 kg 

18


SUNNY BOY 2100TL / 3300TL HC 


The proven reliable Sunny Boy 2100TL 

is the starter model among the transformerless 

inverters; its efficiency is nevertheless 

top-class. Low weight and a 

robust enclosure enable simple installation, 

both indoors and outdoors. The 

Sunny Boy 2100TL is the ideal inverter 

for smaller PV systems or for sub-generators 

in larger systems. 

Sunny Boy 3300TL HC 

Combining a broad range of input 

voltages and currents, the transformerless 

Sunny Boy 3300TL HC is suitable 

for connection to all standard crystalline 

PV modules. For medium-sized 

systems, or for subgenerators in large 

systems, the Sunny Boy 3300TL HC 

is very well equipped. An excellent 

96 % efficiency rate and generously 

dimensioned heat sinks, which enable 

grid feeding within a wide range of 

temperatures, guarantee high yields. 

19


Efficient 

• DC input voltage range of up to 

800 V 


system 

Safe 

• Electric separation 


unit 

Reliable 




Input data 







DC isolator 




Output data 









Efficiency 


Euro ETA 





Weight 


7000HV 

7500 W 

800 V 

335 V – 560 V 

23 A 

< 10 % 

4 


yes 

yes 


7000 W 

6650 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 


AC terminal 

96.1 % 

95.3 % 

IP65 

468 / 613 / 242 

65 kg 

22


SUNNY MINI CENTRAL 7000HV 

The Champion 

for Thin-Film Projects 

The leading mark of distinction of the 

Sunny Mini Central 7000HV is its high 

input voltage range of up to 800 V. 

This makes it suitable for modules with 

a high system voltage. Accordingly, 

more modules can be connected in 

series with the Sunny Mini Central 

7000HV than with conventional inverters. 

This reduces the cabling on 

the DC side and reduces installation 

time. 

Due to its galvanic isolation, the Sunny 

Mini Central can be combined with 

crystalline cells, as well as with thinfilm 

modules. Its power range allows 

construction of large PV systems comprising 

smaller units, which enables 

detailed system monitoring. The robust 

housing and the proven cooling 

system OptiCool provide maximum 

yields, even with high ambient temperatures 

and outdoor installation. 

23


Safe 


system 



unit 

Reliable 




Input data 







DC isolator 




Output data 










4600A 

5250 W 

600 V 

246 V – 480 V 

26 A 

< 10 % 

4 


yes 

yes 


5000 W 

4600 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 


AC terminal 


5000A 

5750 W 

600 V 

246 V – 480 V 

26 A 

< 10 % 

4 


yes 

yes 


5500 W 

5000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 


AC terminal 


6000A 

6300 W 

600 V 

246 V – 480 V 

26 A 

< 10 % 

4 


yes 

yes 


6000 W 

6000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 


AC terminal 

Efficiency 


Euro ETA 

96.1 % 

95.2 % 

96.1 % 

95.2 % 

96.1 % 

95.2 % 



IP65 

IP65 

IP65 



Weight 

468 / 613 / 242 

62 kg 

468 / 613 / 242 

62 kg 

468 / 613 / 242 

63 kg 

24


SUNNY MINI CENTRAL 4600A / 5000A / 6000A 

Ideal for Three-Phase Systems 

The most impressive aspect of the 

Sunny Mini Centrals 5000A and 

6000A is their first-class efficiency: 

they reliably and consistently feed 

maximum energy yields into the public 

grid, while the different sizes result 

in maximum flexibility in system 

planning. They are suitable for implementation 

in smaller systems, as well 

as in the realization of solar parks 

with capacities of several hundred 

kilowatts. 

Due to the robust aluminum die-cast 

housing, and the proven cooling system 

OptiCool, these devices provide 

perfect temperature management. 

Thus, they achieve maximum yields, 

even at high ambient temperatures. 

The electric separation results in high 

flexibility: the Sunny Mini Centrals can 

be used with crystalline cells as well as 

with thin-film modules. While the Sunny 

Mini Centrals 5000A and 6000A 

are ideal for three-phase systems, the 

Sunny Mini Central 4600A is designed 

for single-phase PV plants. 

25


Powerful 


system 

Safe 

• Efficiency up to 95.6 % 



unit 

• Feeding of maximum power up to 

an ambient temperature of 45 °C 

Reliable 




Input data 







DC isolator 




Output data 









Sunny Boy 3300 

3820 W 

500 V 

200 V – 400 V 

20 A 

< 10 % 

3 


yes 

yes 


3600 W 

3300 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 




4040 W 

500 V 

200 V – 400 V 

20 A 

< 10 % 

3 


yes 

yes 


3800 W 

3800 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 



Efficiency 


Euro ETA 

95.2 % 

94.4 % 

95.6 % 

94.7 % 



IP65 

IP65 



Weight 

450 / 352 / 236 

41 kg 

450 / 352 / 236 

41 kg 

26


SUNNY BOY 3300 / 3800 

The Best in Their Class 

One of the most important criteria 

when purchasing an inverter is its efficiency. 

The higher the efficiency, the 

lower the losses that are incurred when 

converting direct current produced 

by the solar modules into alternating 

current. SMA has set a new record 

for transformer-based devices of this 

power class by achieving a maximum 

efficiency of up to 95.6 %. 

As well as ensuring maximum efficiency 

of the OptiCool active cooling system 

developed by SMA, an all-new, 

extra robust aluminum die-cast enclosure 

with a two-chamber design also 

safely protects the electronic components 

from wind and weather. 

27


Safe 


unit 


Flexible 


• Wide range of display and 

communication options 

Input data 







DC isolator 





2700 W 

600 V 

224 V – 480 V 

12 A 

< 10 % 

3 


yes 

yes 



3200 W 

600 V 

268 V – 480 V 

12 A 

< 10 % 

3 


yes 

yes 


Reliable 




Output data 









2500 W 

2300 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 



3000 W 

2750 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 



Efficiency 


Euro ETA 

94.1 % 

93.2 % 

95.0 % 

93.6 % 



IP65 

IP65 



Weight 

434 / 295 / 214 

30 kg 

434 / 295 / 214 

32 kg 

28


SUNNY BOY 2500 / 3000 

Proven in the Field 

The Sunny Boys 2500 and 3000 are 

well known as reliable solar inverters. 

This is due to the extremely solid engineering 

as well as a proven circuitry 

concept. Equipped with the SMA grid 

guard mains monitoring and automatic 

grid frequency detection, these 

Sunny Boys are compatible with almost 

all electricity grids in the world. 

In addition, the Sunny Boys 2500 / 

3000 have a broad input voltage 

range, which provides a great deal 

of freedom when selecting the solar 

generator. 

29


Safe 


unit 


Suitable for outdoors 


• Extended temperature range 

Reliable 




Input data 







DC isolator 




Output data 










1210 W 

400 V 

139 V – 320 V 

10 A 

< 10 % 

2 


yes 

yes 


1100 W 

1000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 




1850 W 

400 V 

139 V – 320 V 

12.6 A 

< 10 % 

2 


yes 

yes 


1700 W 

1550 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 



Efficiency 


Euro ETA 

93 % 

91.6 % 

93.5 % 

91.8 % 



IP65 

IP65 



Weight 

434 / 295 / 214 

22 kg 

434 / 295 / 214 

25 kg 

30


SUNNY BOY 1100 / 1700 


The Sunny Boy 1100 has an extended 

input voltage range of 400 V. In other 

words, we are offering you an inverter 

which enables the implementation of a 

multitude of module configurations. 


The Sunny Boy 1700 completes our 

portfolio of inverters for the medium 

power range. Equipped for an input 

voltage of up to 400 V, the Sunny 

Boy 1700 is the optimal choice for PV 

generators with an output of around 

2 kWp. 

31


Optimal for special applications 

• Suitable for lowest input voltages 

• Suitable for special applications, 

e.g. connecting hydropower 

systems or small wind turbines 

to the grid 




Reliable support 




Input data 






DC isolator 




DC connection 

Output data 









Efficiency 


Euro ETA 





Weight 

Sunny Boy 1100LV 

1240 W 

60 V 

21 V – 48 V 

62 A 

< 10 % 

none 

yes 

yes 


screw terminal 

1100 W 

1000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 



92 % 

90.4 % 

IP65 

434 / 295 / 214 

29 kg 

32


SUNNY BOY 1100LV 

Low Input Voltage 

with High Performance 

The Sunny Boy 1100LV is specially 

designed for low-input DC voltages 

of 21 V to 60 V and is therefore an 

optimal inverter for special generators, 

e.g. solar modules connected in 

parallel, or small turbines. 

A peak efficiency of 92 %, which is 

excellent for this input voltage range, 

makes the Sunny Boy 1100LV a highperformance 

member of the Sunny 

Boy family. 

33


Flexible 

• 3 different input voltage ranges 





Reliable 




Input data 







DC isolator 




Output data 










(73 V to 120 V) 

510 W 

150 V 

73 V – 120 V 

7 A 

< 10 % 

2 

Connectors 

yes 

yes 


460 W 

460 W 

< 3 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 




(96 V to 160 V) 

670 W 

200 V 

96 V – 160 V 

7 A 

< 10 % 

2 

Connectors 

yes 

yes 


600 W 

600 W 

< 3 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 




(119 V to 200 V) 

780 W 

250 V 

119 V – 200 V 

7 A 

< 10 % 

2 

Connectors 

yes 

yes 


700 W 

700 W 

< 3 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 



Efficiency 


Euro ETA 

93.4 % 

92 % 

93.4 % 

92 % 

93.4 % 

92 % 



IP65 

IP65 

IP65 



Weight 

322 / 290 / 180 

16 kg 

322 / 290 / 180 

16 kg 

322 / 290 / 180 

16 kg 

34


SUNNY BOY 700 

Easy Planning and 

Low Installation Costs 

The Sunny Boy 700 is the originator 

of the SMA Sunny Boy string inverter 

family, and since 1995 has been 

proving its reliability in large numbers, 

being implemented all around 

the world. 

With its configurable input voltage 

range, the Sunny Boy 700 can be 

adjusted to individual system requirements 

in just a few simple steps. Three 

different input voltage ranges are selectable, 

so that smaller systems can 

also be connected to the grid with a 

professional device. 

35

Technical data (example configuration) 

Economic 

• High efficiency up to 98 % 

• Low specific price 

• Increased yield due to multiple 

MPP trackers 

Safe 


unit 

• Intelligent temperature management 

with OptiCool 

Flexible 

• Modular design 

• Combination of different Sunny 

Mini Central types possible 

Easy to use 

• Delivered as a turnkey solution 

• Easy installation 

• Integrated data acquisition with 

Sunny WebBox (optional) 

Input data 







DC isolator 




Output data 









Efficiency 


Euro ETA 



Sunny Tower with 6 


8000TL 

49.6 kW 

700 V 

333 V – 700 V 

6 x 25 A 

< 10 % 

6 x 4 


yes 

yes 


48 kW at 40 °C 

48 kW 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 


AC terminal 

98 % 

97.7 % 

IP65 (inverter) 

IP44 (Sunny Tower) 

Sunny Tower with 6 


11000TL 

68.4 kW 

700 V 

333 V – 700 V 

6 x 34 A 

< 10 % 

6 x 5 


yes 

yes 


66 kW at 40 °C 

66 kW 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 

1 


AC terminal 

98 % 

97.5 % 

IP65 (inverter) 

IP44 (Sunny Tower) 



Weight 

1100 / 1800 / 990 

300 kg 

1100 / 1800 / 990 

320 kg 

38

Sunny Tower 

SUNNY TOWER 6 

Installation 

in Less than 30 Minutes 

The Sunny Tower: as easy to install as 

a central inverter, and as profitable as 

a Sunny Mini Central. The outstanding 

efficiency – up to 98 % – and the easy 

installation result in maximum yields. 

In addition, the intelligent ventilation 

system OptiCool makes the Sunny 

Tower suitable for installation in systems 

with high ambient temperatures. 

The modular design and the possibility 

to combine different types of Sunny 

Mini Central inverters ensure maximum 

flexibility for plant design and 

later extension. 

39

Sunny Backup-System: 

Solar Power – Even in the Event of Grid Failure 

Power Outage Means: 

Disconnection of the PV System 

from the Grid 

No light, no heating, no computer: 

today, it is very difficult to do anything 

without electricity. But how many solar 

power system operators really are 

aware that in the event of a power 

outage, the PV system is disconnected 

from the grid for reasons of safety? 

From that moment on, it ceases to 

provide solar power, neither for grid 

feeding, nor for the internal power 

supply. And this is all the more irritating, 

as the experts agree: throughout 

Europe, lengthy blackouts and temporary 

power outages are set to increase. 

It is precisely this supply gap which 

we are closing with the Sunny Backup- 

System from SMA. As of now, this can 

be used by any PV system owner to 

power important loads in a reliable 

and environmentally friendly way, 

even in the event of grid failure. 

Stand-Alone Power Supply 

Over 25 years of SMA experience in 

system technology for PV systems as 

well as off-grid solutions are the basis 

for the system that was awarded the 

"Innovationspreis 2007" (Innovation 

Award). The Sunny Backup-System 

is a mixture of grid-connected operation 

and off-grid technology which 

guarantees you a very high degree of 

user reliability, as well as easy installation. 

The Sunny Backup-System is 

not only equipped with the first backup 

inverter to be certified in accordance 

with the German standard DIN 

VDE 0126-1-1, but is also available as 

a completely pre-configured kit solution 

for different power classes, up to 

100 kW. 

The Optimal Electricity Insurance 

Power outages can have terrible financial 

consequences, especially for companies 

– unless you have extended 

the PV system with the Sunny Backup- 

System. In agricultural enterprises, 

stall ventilation and heat lamps will 

continue to be powered reliably. In 

cold storages, hotels, supermarkets 

and guesthouses, operations continue 

without any harm to reputation, and 

without expensive interruptions in the 

cold chain. And in single-family homes, 

the heating, oven, PC and lighting all 

function without interruption, with the 

same quality of supply as during normal 

operation. 

And by the way: all PV plants with 

Sunny Boy inverters can be refitted 

without problems. 

43


Simple 

• Can be integrated in existing 

systems 

• Preconfigured sets for different 

power classes 

Affordable 

• Smaller battery size required due 

to utilization of the PV energy 

Flexible 

• Single- and three-phase systems 

are possible 

• Extendable 

• Power classes from 5 up to 100 kW 

available 

Efficient 

• Power supply and battery charging 

over the grid 

• Continuously high PV efficiency 

Reliable 

• Automatic switching to 

backup supply in only about 

20 milliseconds 

• Independent disconnection device in 

accordance with DIN VDE 0126-1-1 

• 5-year SMA Warranty 

General 

Number of phases 

Nominal voltage / nominal frequency 

Number of Sunny Backup 5000s 

Switching unit (AS Box) 

Permitted grid structure 

(grid side / load side) 

PV System 

Nom. AC PV Power / AC PV-current 

Independent disconnection device in 


Consumers 

Nom. power / current in grid operation 

Max. backup power 

(Cont. / 30 min / 1 min) 

Battery 

Nominal voltage 

Energy / capacity (C10) 

Duration of usage (according to EUROBAT) 


SBU (W/H/D in mm) 

AS Box (W/H/D in mm) 

Battery block (W/H/D in mm) 

Weight (SBU / AS Box / battery block) 

Ambient conditions 

Ambient temperature (SBU, AS Box) 

Enclosure type, DIN EN 60529 

(SBU, AS Box) 

Accessories 

Cables (battery connection 

up to 3 m / communication) 

Generator connection 

Sunny Backup 

Set M 

1-phase 

230 V / 50 Hz 

1 

AS Box M 

TN-C / TN-S 

5.7 kW / 25 A 

yes 

8 kW / 35 A 

5 kW / 6.5 kW / 

8.4 kW 

Fleece battery (AGM) 

48 V 

6.7 kWh / 142 Ah 

> 12 years 

467 / 612 / 235 

600 / 600 / 210 

498 / 230 / 177 

63 kg/29 kg/54.5 kg 

–25 °C to +50 °C 

IP30 / IP65 

included 

optional (8 kW) 


Set L 

3-phase 

3 x 230 V/400 V/50 Hz 

3 

AS Box L 

TN-C / TN-S 

30 kW / 3 x 44 A 

yes 

44 kW / 3 x 63 A 

15 kW/19.5 kW/ 

25.2 kW 


48 V 

13.4 kWh / 284 Ah 

> 12 years 

467 / 612 / 235 

600 / 760 / 210 

498 / 230 / 177 

63 kg/41 kg/54.5 kg 

–25 °C to +50 °C 

IP30 / IP65 

included 



Set XL 

3-phase 

3 x 230 V/400 V/50 Hz 

6/9/12 

AS Box XL 

TN-C / TN-S 

110 kW / 3 x 160 A 

yes 

110 kW / 3 x 160 A 

2/3/4 x (15 kW/ 

19.5 kW / 25.2 kW) 


48 V 

2/3/4 x (13.4 kWh / 284 Ah) 

> 12 years 

467 / 612 / 235 

1000 / 1600 / 300 

498 / 230 / 177 

63 kg/180 kg/54.5 kg 

–25 °C to +50 °C 

IP30 / IP65 

included 


44


SUNNY BACKUP Set M / L / XL 

The "Blackout Blocker" 

As an add-on to the PV system the 

Sunny Backup-System automatically 

switches to island supply within approx. 

20 milliseconds in case of a grid 

failure. New and existing PV plants can 

be equipped with the Sunny Backup 

– without affecting the PV efficiency. 

And the best part: due to the integration 

of the PV system, a small and therefore 

low-cost battery can be implemented, 

as it is usually only needed to bridge 

the night hours. 

SMA offers the Sunny Backup-System 

as a pre-configured set for all power 

ranges from 5 up to approx. 100 kW – 

easy to install and easy to extend later. 

This new SMA system also comes off 

well when compared with conventional 

emergency power systems in terms 

of cost effectiveness: it is the backup 

solution with the best performance 

and the highest user benefits, while 

entailing the lowest investment and 

operation costs. 

45


Simple 

• Can be integrated in existing 

systems 

• Preconfigured set 

Affordable 

• Small, low-cost backup inverter 

• Compact and affordable 

switching unit 

• Only small battery required due 

to integration of the PV system 

Efficient 

• Power supply and battery 

charging over the grid 

• Continuously high PV efficiency 

Reliable 

• Automatic switching to backup 

power in only about 50 milliseconds 

• Independent disconnection device in 



General 


Nominal voltage / nominal frequency 

Number of Sunny Backups (SBUs) 

Switching unit (AS Box) 

Permitted grid structure (grid side / 

load side) 

PV System 

Nom. AC PV Power / AC PV current 

Independent disconnection device in 


Consumers 

Nom. power / current in grid operation 

Max. backup power 

(Cont. / 30 min. / 1 min.) 

Battery 

Nominal voltage (bank / block) 

Energy / capacity (C10) 

Number of blocks 

Duration of usage (according to EUROBAT) 


SBU (W/H/D in mm) 

AS Box (W/H/D in mm) 

Battery block (W/H/D in mm) 

Weight (SBU / AS Box / battery block) 


Ambient temperature (SBU, AS Box) 

Enclosure type, DIN EN 60529 

(SBU, AS Box) 

Accessories 

Battery fuse, user interface (SRC-1) 

Battery connection cables (4 m), 

communication cables 


Set S 

1 phase 

230 V / 50 Hz 

1 x SBU 2200 

AS Box S 1 

TN-C / TN-S 

4.6 kW / 20 A 

yes 

5.7 kW / 25 A 

2.2 kW / 2.9 kW / 

3.8 kW 


24 V – 12 V 

3.4 kWh / 142 Ah 

2 

> 12 years 

470 / 445 / 180 

200 / 300 / 120 

498 / 230 / 177 

18 kg/4.5 kg/54.5 kg 

–25 °C to +60 °C 

IP54 / IP54 

included 

included 

included 

46


SUNNY BACKUP Set S 

Solar Power When the Grid 

Is Down – Also for Home Owners 

Innovative electricity supply for home 

owners: as a supplement to the PV 

system, the Sunny Backup Set Small 

switches to off-grid mode within 50 

miliseconds. For winter or summer: 

owners of small- or medium-sized PV 

systems with inverters from SMA can 

supply the important consumers on 

their own in case of a power failure. 

The affordable set is not only suitable 

for brand new solar power plants. 

Existing PV systems can be retrofitted 

with the certified Sunny Backup-System 

without problems. 

47

Central Inverters from SMA: 

High Technology for Solar Power Stations 

Larger, more powerful, more efficient 

– the success of photovoltaics has led 

to constantly growing solar power 

plant sizes in recent years. With the 

Sunny Central product line, SMA 

offers central inverters intended specifically 

for high-performance class 

installations. Thanks to their particular 

features, such as high efficiency, string 

monitoring, team capability, medium 

voltage feed, and the possibility of 

outdoor installation, Sunny Centrals 

are optimally suited for deployment 

in solar power plants with a homogeneous 

structure. 

An Investment That Pays Off 

From the 100 kW Sunny Central up 

to the first 1 megawatt solar inverter 

in series production, SMA Sunny 

Centrals achieve the best efficiency 

in this performance bracket, and are 

therefore particularly economical. 

With the Sunny Central 100, it was 

even possible to improve efficiency to 

97.6 percent by utilizing innovative 

transformer technologies. Many of 

the SMA central inverters can operate 

without a low-voltage transformer. The 

advantage: higher efficiency through 

direct feed into the medium-voltage 

grid. 

Central inverters with their own weatherproof 

housings permit installation 

outdoors immediately adjacent to the 

generator. As a result, long transmission 

distances and construction measures 

are eliminated. 

Proven Reliability and 

Long Service Life 

Sunny Centrals are designed for a 

lifespan of at least 20 years, because 

maximum investment security is only 

ensured when inverters operate reliably 

and faultlessly over a long period 

of time. SMA system monitoring provides 

additional operational security: 

through comprehensive communication 

interfaces with which operators 

can monitor their Sunny Centrals from 

any PC, via the Internet, anywhere in 

the world. Possible output fluctuations 

can thus be recognized and corrected 

early. 

Comprehensive Service 

Around the World 

SMA not only has long years of experience 

in the implementation of 

large solar power plants, but can 

also offer the appropriate provision 

of service for every application. The 

customer has a choice among various 

service concepts: from service and 

maintenance as needed, up to an “allaround, 

worry-free package” with a 

service, maintenance, and technical 

availability warranty; facility operators 

are in good hands with SMA. 

Product Overview Sunny Central 

Sunny Central 400MV 



Sunny Central 1000MV / 1120MV 

Sunny Central 100HE 




Sunny Central 500HE / 560HE 

Sunny Central 100i Sunny Central 150i Sunny Central 200i Sunny Central 250i 

Sunny Central 350i 

Sunny Central 100o 

Sunny Central 100LV / 125LV 

49


Sunny Central 150 




Input data 

Recommended max. PV power (P PV ) 

PV voltage range, MPPT (U DC ) 


Max. DC voltage (U DC, EVR ) 

Max. input current (I DC, max ) 



DC overvoltage protection 

175 kW P 

450 V – 820 V 

880 V 

1000 V (optional) 

354 A 

< 3 % 

5 

yes 

235 kW P 

450 V – 820 V 

880 V 


472 A 

< 3 % 

5 

yes 

295 kW P 

450 V – 820 V 

880 V 


591 A 

< 3 % 

8 

yes 

410 kW P 

450 V – 820 V 

880 V 


827 A 

< 3 % 

12 

yes 

Output data 


Nominal AC current (I AC, nom ) 


Grid voltage operating range (U AC ) 

Grid frequency (f AC ) 


AC overvoltage protection 

150 kW 

216 A 

< 3 % 

400 V ±10 % 

50 Hz / 60 Hz 

≥ 0.99 at PAC, nom 

yes 

200 kW 

289 A 

< 3 % 

400 V ±10 % 

50 Hz / 60 Hz 


yes 

250 kW 

361 A 

< 3 % 

400 V ±10 % 

50 Hz / 60 Hz 


yes 

350 kW 

505 A 

< 3 % 

400 V ±10 % 

50 Hz / 60 Hz 


yes 

Efficiency (tolerances in accordance 

with IEC 61683) 


Euro ETA 

95.3 % 

94.7 % 

95.7 % 

94.5 % 

96.1 % 

95.2 % 

96 % 

95.2 % 

Protection rating per EN 60529 

IP20 

IP20 

IP20 

IP20 



Weight 

2000 / 2120 / 850 

1450 kg 

2000 / 2120 / 850 

1600 kg 

2400 / 2120 / 850 

2060 kg 

2400 / 2120 / 850 

2800 kg 

General data 

Own consumption in operation 

Operating consumption in night mode 

< 1 % P AC, nom 

< 50 W 

< 1 % P AC, nom 

< 50 W 

< 1 % P AC, nom 

< 50 W 

< 1 % P AC, nom 

< 50 W 


Temperature 

Relative humidity (non condensing) 

–20 °C to +40 °C 

to 95 % 

–20 °C to +40 °C 

to 95 % 

–20 °C to +40 °C 

to 95 % 

–20 °C to +40 °C 

to 95 % 

52

Central Inverters with Transformers 

SUNNY CENTRAL 150 / 200 / 250 / 350 

Safe 

• Motor-driven disconnector on the 

DC side 

• Overvoltage protection on the 

DC and AC side 

Communicative 

• Easy remote querying using remote 

access possible 

• Error and status messages can be 

sent via e-mail or SMS 

Optional 

• String current monitoring 

• Yield increases using Sunny Team 

• Power factor compensation 

• Extended input-voltage range up 

to 1000 V DC 

The Specialist for Ground-Mounted 

or Large Roof PV Systems 

First choice for use in medium-sized 

and large-scale PV power plants: especially 

in large ground-mounted systems 

or very large roof systems with 

homogeneous structure, the Sunny 

Centrals 150, 200, 250 and 350 allow 

very good power yields. The different 

power classes let the operator 

select the optimal inverter for the system. 

The Sunny Centrals 200 to 350 

are equipped with 5, 8 or 12 input 

ports with fuses for the connection of 

the DC distribution boxes. 

On the AC side, several Sunny Centrals 

can be connected in parallel. This 

makes output powers in the megawatt 

range possible. 

53


Flexible 


–20 °C to +50 °C 

• Compact dimensions – easier 

installation 

Economic 

• Innovative transformer technology 

resulting in improved peak 

efficiency up to 96.7 % and 

Euro Eta of 97.0 % 

Input data 

Max. DC power 


Max. MPP voltage (U MPP, max ) 





DC inputs (without fuse) 

DC connection 



Outdoor / HE** 

110 kWp 

450 V – 900 V 

820 V 

900 V 


235 A 

< 3 % 

3 

Cu rail for 

3 x M12 connections 

yes (optionally 

adjustable) 


Indoor / HE** 

110 kWp 

450 V – 900 V 

820 V 

900 V 


235 A 

< 3 % 

3 

Cu rail for 

3 x M12 connections 

yes (optionally 

adjustable) 

Safe 

• System monitoring and analysis via 

integrated data logger 

• Easy remote querying using remote 

access possible 

Output data 


Max. output current (I AC, max ) 





AC power switch 

100 kW* 

145 A / 193 A** 

< 3 % 

400 V 

50 Hz / 60 Hz 


yes 

100 kW* 

145 A / 193 A** 

< 3 % 

400 V 

50 Hz / 60 Hz 


y es 

Optional 

• String monitoring 

• DC input voltage range of up to 

1000 V 

• Operation with grounded 

PV generators 

• Also available as HE version 

Efficiency 

(tolerance per IEC61683) 

Maximum efficiency 

CEC rebate efficiency 

Housing 


Cooling concept 

Permissible ambient temperature 



Weight 

97.6 % / 98.5 %** 

97 % / 98,3 %** 

at 500 V DC 

IP54 / IP44 

OptiCool 

–20 °C to +50 °C* 

1280 / 1835 / 830 

925 kg / 505 kg** 

97.6 % / 98.5 %** 

97 % / 98,3 %** 

at 500 V DC 

IP21 

OptiCool 

–20 °C to +50 °C* 

1280 / 1835 / 830 

925 kg / 505 kg** 

* Complies with nominal values up to 

an ambient temperature of +40 °C, 

at an ambient temperature of +50 °C 

the nominal values are held for two 

hours. 

** HE: High Efficiency, inverter without 

electric separation for the connection 

to a medium-voltage transformer 

(preliminary data dated March 

2008) 

54


SUNNY CENTRAL 100 Outdoor / 100 Indoor 

Powerful and Efficient 

Concentrated power at an attractive 

price: the Sunny Central 100 outdoor 

is the perfect solution for PV power 

plants on the open field. The weatherproof 

enclosure and the extended 

temperature range make it the first 

choice for reliable outside operation 

– even under harsh climatic conditions. 

Plant operators benefit twice: the 

compact design of the Sunny Central 

100 reduces installation work, and 

the innovative transformer technology 

improved the peak efficiency of the 

central inverter even further, resulting 

in 97.6 %. This makes it the most efficient 

inverter of its class. The indoor 

version is basically identical, although 

the special ventilation concept makes 

it the perfect solution for indoor applications. 

55


Optimal for special applications 

• Low-voltage version with an inputvoltage 

range of 300 V to 600 V 

• Connection of modules with low 

permissible system voltage 

Safe operation 

• Motor-driven disconnector on the 

DC side 

• Overvoltage protection on the 

DC and AC side 

• System monitoring and data 

analysis as with the standard 


Optional 


• Increased yield due to Sunny Team 


Input data 








Output data 











Euro ETA 




Weight 


LV 

110 kW P 

250 V – 600 V 

650 V 

430 A 

< 3 % 

5 

yes 

100 kW 

145 A 

< 3 % 

400 V ±10 % 

50 Hz / 60 Hz 


yes 

94.6 % 

93.5 % 

IP20 

2000 / 2120 / 850 

1460 kg 


LV 

145 kW P 

300 V – 600 V 

650 V 

448 A 

< 3 % 

5 

yes 

125 kW 

180 A 

< 3 % 

400 V ±10 % 

50 Hz / 60 Hz 


yes 

94.6 % 

93.5 % 

IP20 

2000 / 2120 / 850 

1460 kg 

General Data 



< 1 % P AC, nom 

< 50 W 

< 1 % P AC, nom 

< 50 W 


Temperature 


–20 °C to +40 °C 

to 95 % 

–20 °C to +40 °C 

to 95 % 

56


SUNNY CENTRAL 100LV / 125LV 

High Technology 

for Solar Power Stations 

With an input voltage range of 

250 V to 600 V, the SC 100LV and 

SC 125LV can operate in systems 

with up to 145 kWp. They are especially 

suitable for PV modules with low 

system voltage. The PV generator can 

be connected to the inverter via five 

DC inputs. 

57


Input data 










200HE 

235 kW P 

450 V – 820 V 

880 V 


472 A 

< 3 % 

5 

yes 


250HE 

295 kW P 

450 V – 820 V 

880 V 


591 A 

< 3 % 

8 

yes 


350HE 

410 kW P 

450 V – 820 V 

880 V 


827 A 

< 3 % 

12 

yes 


500HE 

580 kW P 

450 V – 820 V 

880 V 


2 x 591 A 

< 3 % 

DC busbar 

yes 


560HE* 

650 kW P 

540 V – 820 V 

880 V 


2 x 591 A 

< 3 % 

DC busbar 

yes 

Output data 








200 kW 

428 A 

< 3 % 

3 x 270 V ±10 % 

50 Hz / 60 Hz 


yes 

250 kW 

535 A 

< 3 % 

3 x 270 V ±10 % 

50 Hz / 60 Hz 


yes 

350 kW 

748 A 

< 3 % 

3 x 270 V ±10 % 

50 Hz / 60 Hz 


yes 

500 kW 

1069 A 

< 3 % 

3 x 270 V ±10 % 

50 Hz / 60 Hz 


yes 

560 kW 

1027 A 

< 3 % 

3 x 315 V ±10 % 

50 Hz / 60 Hz 


yes 




Euro ETA 

97.3 % 

96.4 % 

97.5 % 

96.7 % 

97.5 % 

97 % 

98.5 % 

98.3 % 

98.5 % 

98.3 % 




Weight 

General Data 




Temperature 


IP20 

2000 / 2120 / 850 

850 kg 

< 1 % P AC, nom 

< 50 W 

–20 °C to +40 °C 

to 95 % 

IP20 

2400 / 2120 / 850 

1070 kg 

< 1 % P AC, nom 

< 50 W 

–20 °C to +40 °C 

to 95 % 

IP20 

2800 / 2120 / 850 

1460 kg 

< 1 % P AC, nom 

< 70 W 

–20 °C to +40 °C 

to 95 % 

IP20 

2800 / 2120 / 850 

2200 kg 

< 1 % P AC, nom 

< 100 W 

–20 °C to +40 °C 

to 95 % 

IP20 

2800 / 2230 / 850 

2250 kg 

< 1 % P AC, nom 

< 100 W 

–20 °C to +40 °C 

to 95 % 

*preliminary information, dated March 2008 

60

Central Inverters without Transformers 

SUNNY CENTRAL 200HE / 250HE / 350HE / 500HE / 560HE 

Economic 

• Without low-voltage transformer 

– outstanding efficiency 

• Lower costs compared with systems 

with low-voltage transformer 

• For direct connection to a mediumvoltage 

transformer 

Optional 


• Increased yield due to 

Sunny Team 


• Extended input voltage range up 

to 1000 V DC 

Optimal Solution for Direct 

Feeding to Medium-Voltage Grid 

The Sunny Centrals 200HE, 250HE, 

350HE, 500HE and 560HE are the 

perfect choice for whoever is looking 

for first-class central inverters for 

direct connection to the medium-voltage 

grid. They operate directly with a 

medium-voltage transformer and have 

all advantages of a standard inverter. 

The High Efficiency (HE) versions are 

not equipped with a low-voltage transformer. 

This results in highest efficiency 

– the 500HE has over 98 % – and this 

lets you harvest highest yields. Solar 

power plants become even more affordable. 

61


Input data 










400MV 

470 kW P 

450 V – 820 V 

880 V 


2 x 472 A 

< 3 % 

10 / DC fuse 

yes 


500MV 

580 kW P 

450 V – 820 V 

880 V 


2 x 591 A 

< 3 % 

16 / DC fuse 

yes 


700MV 

820 kW P 

450 V – 820 V 

880 V 


2 x 800 A 

< 3 % 

24 / DC fuse 

yes 


1000MV 

1160 kW P 

450 V – 820 V 

880 V 


4 x 591 A 

< 3 % 

DC busbar 

yes 


1120MV* 

1160 kW P 

540 V – 820 V 

880 V 


4 x 591 A 

< 3 % 

DC busbar 

yes 

Output data 








400 kW 

12 A 

< 3 % 

20 kV 

50 Hz / 60 Hz 


yes 

500 kW 

14.4 A 

< 3 % 

20 kV 

50 Hz / 60 Hz 


yes 

700 kW 

20.2 A 

< 3 % 

20 kV 

50 Hz / 60 Hz 


yes 

1000 kW 

28.8 A 

< 3 % 

20 kV 

50 Hz / 60 Hz 


yes 

1120 kW 

28.8 A 

< 3 % 

20 kV 

50 Hz / 60 Hz 


yes 




Euro ETA 




Weight incl. transformer and substation 

General Data 




Temperature 

Relative humidity 

96.9 % (with mediumvoltage 

transformer) 

95.6 % 

IP54 

5400 / 3620 / 3000 

30 t 

< 1 % P AC, nom 

90 W + 720 W 

–20 °C to +40 °C 

to 95 % 

97 % (with mediumvoltage 

transformer) 

96 % 

IP54 

5400 / 3620 / 3000 

30 t 

< 1 % P AC, nom 

90 W + 720 W 

–20 °C to +40 °C 

to 95 % 


transformer) 

96.3 % 

IP54 

5400 / 3620 / 3000 

35 t 

< 1 % P AC, nom 

140 W + 920 W 

–20 °C to +40 °C 

to 95 % 


transformer) 

97 % 

IP54 

5400 / 3620 / 3000 

35 t 

< 1 % P AC, nom 

180 W + 1100 W 

–20 °C to +40 °C 

to 95 % 


transformer) 

97 % 

IP54 

5400 / 3620 / 3000 

35 t 

< 1 % P AC, nom 

180 W + 1100 W 

–20 °C to +40 °C 

to 95 % 

*preliminary information, dated March 2008 

64

Central Inverters for the Medium Voltage Grid 

SUNNY CENTRAL with Direct Feeding to Medium Voltage Grid 

400MV / 500MV / 700MV / 1000MV / 1120MV 

Efficient 

• Without low-voltage transformer: 

1.5 to 2.0 % higher system efficiency 

• Higher yield and lower costs 

compared with systems with lowvoltage 

transformer 

Turnkey delivery 

• Available with medium-voltage 

transformer and concrete substation 

for outdoor installation 

Optional 

• More yield due to integrated 

Sunny Team 

• Reactive power compensation 

• Extended input-voltage range 

up to 1000 V DC 

• AC transfer station 

Powerful Medium-Voltage Station 

For even more power: two Sunny 

Central HE can be combined into a 

medium-voltage station that can be 

directly connected to one medium-voltage 

transformer. Two Sunny Central 

500HE result in a powerful Sunny 

Central 1000MV station. The advantage: 

due to the missing low-voltage 

transformer, the efficiency is even 

higher while the inverter costs are 

reduced. The Sunny Central MV is delivered 

as turnkey station and can be 

connected directly to the medium-voltage 

grid. The integrated data logger 

allows full performance evaluation of 

the entire system. The remote access 

lets the user easily access the plant 

from anywhere he wants. 

65


Precise 

• System monitoring as with the 

Sunny Boy via string current 

monitoring 

• DC distributor box with IP54/IP65, 

with integrated current measurement 

• Allows the connection of 8 or 16 

strings 

Input data 

Max. permissible DC voltage 

Max. permissible DC current 

Number of DC inputs 

Max. string current per measuring 

channel 

Nominal string fuse current 


String Monitor 

1000 V 

112 A 

max. 16 per pole 

14 A 

10 A, 12 A, 16 A, 20 A 


String Monitor- 

Cabinet 

1000 V 

224 A 

max. 16 per pole 

14 A 

10 A, 12 A, 16 A, 20 A 

Optional 

• Sunny String Monitor is optionally 

available with various connection 

possibilities for the strings (Multi- 

Contact, Tyco, screw terminal) 

• Available with DC switch 

Communication 




Weight 


Permissible ambient temperatures 


RS485 

IP65 

750 / 435 / 230 

13 kg 

–25 °C to +40 °C 

to 95 % 

RS485 

IP54 

750 / 1000 / 320 

65 kg 

–25 °C to +40 °C 

to 95 % 

General Information 

DC load-disconnecting switch 

(optional) 

direct drive; 

125 A DC 

direct drive; 

250 A DC / 125 A DC 

68

Central Inverters Accessories 

SUNNY CENTRAL String Monitor 

SUNNY CENTRAL String Monitor-Cabinet 

With the Sunny String Monitor, SMA 

offers detailed Sunny Boy standard 

monitoring of the PV generator. With 

measurement and comparison of the 

individual string currents, power deviations 

in the solar generator are sure to 

be detected and directly analyzed by 

means of the Sunny Central Control. 

According to preference, the Sunny 

String Monitor can be delivered either 

in a housing for wall mounting 

(protection rating IP65), or as groundmounted 

Sunny String Monitor-Cabinet 

(IP54). 

Along with the measurement of string 

currents, the Sunny String Monitor includes 

string fuse protection as well as 

overvoltage protection. 

69


Economic 

• Yield increase of 1 % to 3 % 

• Improved efficiency under partial 

load 

Flexible 

• Increased inverter availability 

• Applicable for two identical 

Sunny Centrals 

Yield increase 

Suitable inverters 

Required hardware 

Other prerequisites 

Sunny Central Team 

1 to 3 %, depending 

on the system 

SC 150 

SC 200 

SC 200HE 

SC 250 

SC 250HE 

SC 350 

SC 350HE 

SC 500HE 

SC100LV 

SC125LV 

(max.) 2 identical 

Sunny Centrals 

DC contactor integrated 

in the Sunny Central 

(optional extra) 

identical PV generators 

(same module with 

same orientation), no 

retrofitting possible 

70


SUNNY CENTRAL Team 

The Sunny Team concept is a better 

option compared with the master/ 

slave concept because it increases 

both the energy yield and the availability 

of multi-inverter systems. With 

Sunny Team, the only inverters active 

at any one time are those necessary 

for feeding the present level of solar 

energy into the grid. This significantly 

improves efficiency, particularly under 

partial load. If one inverter is not 

operational, the complete solar array 

is taken over by the second inverter, 

and the generator output is thus fed 

into the grid. 

71


User friendly 

• Error and status messages can be 

sent via e-mail or SMS 

• Remote control and monitoring 

• Detailed data can easily be 

recorded and stored 

Flexible 

• Communication with the 

Sunny Central via RS232, RS422, 

RS485 or Ethernet 

• Sunny Central Control data logger 

integrated as standard 

• Scope of performance as for 

Sunny Boy Control Plus 

Interfaces 

Sunny String Monitor (COM1) 

PC (COM 2) 

Inputs for external sensors 

1 analog input 

2 analog inputs 

Outputs 

1 signaling contact 

Memory capacity 

Energy values per Sunny Central 

Measurement channels 


Communication 

RS232 

RS422 

RS485 

Ethernet 

temperature sensor 

(Pt100) 

analog sensors with 

voltage output 

fault messages 

1 year 

up to 250 

72


SUNNY CENTRAL Communication 

The data logger Sunny Central Control, 

which is integrated in the Sunny 

Central as standard, enables detailed 

recording and analysis of data in the 

same manner as the Sunny Boy Control 

Plus. All important inverter data 

can be displayed on the 4-line display 

and stored in the internal memory. 

If string current monitoring is implemented, 

the individual DC sub-distribution 

boxes are connected to the Sunny 

Central Control via an RS485 data 

line. The analysis of the individual 

string currents occurs within the Sunny 

Central Control. 

In addition, the Sunny Central Control 

has a total of three analog inputs 

for connection of external sensors for 

measuring solar irradiation or temperature. 

With communication via Ethernet, the 

Sunny Central Control gives you remote 

access, and enables the transmission 

of status messages or error 

messages via e-mail or SMS. In larger 

PV systems with several inverters, the 

individual Sunny Centrals can be interconnected 

via Ethernet, and remote 

querying can be realized with e-mail 

or SMS. 

Sunny WebBox is the powerful solution 

for those who wish to easily visualize 

their PV plant's data on the Internet. 

Together with the Sunny Matrix 

large-format display, this is the perfect 

team for monitoring and presenting 

larger systems. 

73

Safety 

• Guarantee of technical availability 

• Service and 20-year maintenance 

contracts 

Know-how 

• Telephone support via 


• Regular Sunny Central servicing 

courses 

Project Planning 

Solar power plants with SMA central 

inverters are profitable investments. 

All components, starting with cables 

and connections all the way to the 

plant-specific monitoring system have 

an impact on the yield. SMA offers 

comprehensive support for the selection 

of the components and the project 

planning from the very beginning. 

The SMA Solar Academy 

The Sunny Central seminars cover the 

entire know-how for the optimal design 

of commercial plants in the megawatt 

range: periodic training and customer 

events, together with seminars concerning 

service complete the seminar 

package. All dates are available at 

www.SMA.de/Solaracademy. 

Commissioning 

Turnkey solution including acceptance 

procedure with the utility operator: 

experienced service technicians from 

SMA can commission your PV power 

plant. 

74


Project Planning, 

Commissioning and Service 

Altogether, 3 gigawatts of installed PV 

power are the basis of SMA's comprehensive 

service package for the Sunny 

Central product family: 

Our service contracts and regular 

maintenance agreements include features 

such as 97 % plant operation 

time, support via telephone over the 

SMA Service Line, and a guarantee 

of technical availability. The contract 

periods – up to 20 years for our maintenance 

contracts – result in the highest 

level of operation safety. 

Sunny Design 

The software is a quick and easy tool 

for the design of your PV-plant: Sunny 

Design not only checks the technical 

data of the selected components, the 

free software also checks the troublefree 

operation of the system under 

any feasible operating condition. An 

integrated meteorological database 

additionally evaluates the performance 

over a definable calendar year. 

75

Off-Grid Inverters from SMA: 

System Manager for any Type of Generator 

Reliable electricity supply for off-grid 

systems: together with the battery 

unit, the Sunny Island stand-alone 

inverter creates a standard AC 

electricity supply that integrates all 

components – from electrical appliances 

to electricity generators. This 

AC coupling and the Sunny Island 

as system manager let SMA deliver 

an innovative solution for the electricity 

supply of remote locations or 

for emergency supply of areas with 

unreliable utilities. 

PV systems as well as wind energy 

systems, diesel generators, small hydroelectric 

or combined heat and 

power plants can now be coupled on 

the AC side along with 230 V loads. 

This eliminates the need for expensive 

DC cabling and provides maximum 

flexibility. As a result, an off-grid 

system can be adapted to increasing 

demands quickly and without technical 

complexity. This technology developed 

by SMA makes it possible to 

provide electricity to a large proportion 

of the 2 billion people who do not 

have access to it today. 

Power Quality 

The Sunny Island guarantees standalone 

grids with perfectly sinusoidal 

voltage, high overload capability, 

and excellent reliability. 

For Systems from 1 to 100 kW 

SMA offers the entire power range 

of off-grid inverters for all battery voltages 

and the necessary system components 

from one supplier 


The Sunny Island product family is very 

flexible and can be combined with 

nearly all communication products from 

SMA. The monitoring of the island system 

can therefore be done with a PC onsite 

or with the Sunny Portal via Internet. 

Performance Capability 

The coupling on the AC side increases 

the capacity of the power generators. 

In cases of high solar radiation, the 

available energy of the Sunny Island 

and of the Sunny Boy combine together, 

and thereby increase the total 

output of the island grid. 

Expandability 

Stand-alone grids with the Sunny Island 

can be expanded from a singlephase 

supply to a three-phase grid 

with several Sunny Islands. This can 

take place step by step, according to 

the increasing energy demand. 

79


Flexible 

• For systems from 3 to 100 kW 

• Single- and three-phase operation, 

connectable in parallel and 

modularly extendable 

• AC and DC coupling 

Simple 

• Comfortable commissioning due to 

„Quick Configuration Guide“ 

• Complete off-grid management 

Efficient 

• High efficiency 

• Long battery service life 

• Reliable state-of-charge evaluation 

Safe 

• Extreme overload capability 

• OptiCool 


Output data 

Nominal AC voltage (adjustable) 

Nominal frequency (adjustable) 

Continuous AC output at 25 / 45 °C 

Continuous AC output at 25 °C for 

30 / 5 / 1 min. 

Nominal AC current 

Max. current 

Output voltage harmonic distortion factor 

Power factor 

Input data 

Input voltage 

Input frequency 

Max. AC input current 

Max. input power 

Battery data 

Battery voltage (range) 

Max. battery charging current 

Continuous charging current 

Battery capacity 

Charge control 

Efficiency / power consumption 

Max. efficiency (typical) 

Own consumption with no load (standby) 

Sunny Island 5048 

230 V (202 – 253 V) 

50 Hz (45 – 65 Hz) 

5000 / 4000 W 

6500 / 7200 / 8400 W 

21.7 A 

120 A (for 100 ms) 

< 3 % 

–1 to +1 

230 V (172.5 – 250 V) 

50 Hz (40 – 70 Hz) 

A (2 – 56 A) 

12.8 kW 

48 V (41 – 63 V) 

120 A 

100 A 

100 – 10000 Ah 

IU 0 U with automatic 

full and equal. charge 

95 % 

25 W (< 4 W) 

Sunny Island 5048U 

120 V (105 – 132 V) 

60 Hz (55 – 65 Hz) 

5000 / 4000 W 

6500 / 7200 / 8400 W 

41.7 A 

150 A (for 100 ms) 

< 3 % 

–1 to +1 

120 V (80 – 150 V) 

60 Hz (54 – 66 Hz) 

A (2 – 56 A) 

6.7 kW 

48 V (41 – 63 V) 

120 A 

100 A 

100 – 10000 Ah 



95 % 

25 W (< 4 W) 




Weight 

Ambient temperature 

IP30 

467 / 612 / 235 

63 kg 

–25 to +50 °C 

IP30 

467 / 612 / 235 

63 kg 

–25 to +50 °C 

80


SUNNY ISLAND 5048 / 5048U 

Powerful Stand-Alone Grid Manager 

with Innovative Technology 

As the central unit of a stand-alone 

power supply system, battery inverters 

have many different functions and 

are often difficult to configure. Yet the 

Sunny Island 5048 from SMA shows 

that simplicity is also possible. Fit for 

systems of 3 to 100 kW, it can be 

commissioned in a matter of a few minutes. 

All settings required for operation 

can be made quickly and simply. 

The Sunny Island 5048 is flexible in 

its application, extendable and takes 

on all control processes. 

Its first-class battery management ensures 

the maximum service life of the 

batteries protecting your investment. 

In addition, the Sunny Island 5048 

features many of the innovative product 

characteristics which made SMA a 

winner in a test carried out recently by 

the German product standards institute 

"Stiftung Warentest": high efficiency, 

an ergonomic aluminum housing and 

its OptiCool ventilation system. 

The Sunny Island is also available in 

a UL-compliant 5048U version with an 

output rating of 120 V and 60 Hz. 

81


Simple 



• Simple installation 

Efficient 


• Excellent price/performance ratio 


Output data 





30 / 5 / 1 min. 


Max. current 


Power factor 

Input data 

Input voltage 





230 V (202 – 253 V) 

50 Hz (45 – 55 Hz) 

3300/2300 W 

4200 / 4400 / 5000 W 

14.5 A 

A (for 100 ms) 

< 3 % 

–1 to +1 

230 V (172.5 – 250 V) 

50 Hz (40 – 60 Hz) 

A (2 – 56 A) 

12.8 kW 


230 V (202 – 253 V) 

50 Hz (45 – 55 Hz) 

4200/3400 W 

5400 / 6200 / 7000 W 

18 A 

A (for 100 ms) 

< 3 % 

–1 to +1 

230 V (172.5 – 250 V) 

50 Hz (40 – 60 Hz) 

A (2 – 56 A) 

12.8 kW 

Sunny Island 4248U 

120 V (105 – 132 V) 

60 Hz (55 – 65 Hz) 

4200/3400 W 

5400 / 6200 / 7000 W 

35 A 

140 A (for 5 s) 

< 3 % 

–1 to +1 

120 V (80 – 150 V) 

60 Hz (54 – 66 Hz) 

A (2 – 56 A) 

6.7 kW 

Battery data 






24 V (21 – 32 V) 

140 A 

104 A 

100 – 10000 Ah 



48 V (41 – 63 V) 

100 A 

80 A 

100 – 10000 Ah 



48 V (41 – 63 V) 

100 A 

80 A 

100 – 10000 Ah 






94.5 % 

22 W (< 4 W) 

95 % 

22 W (< 4 W) 

95 % 

22 W (< 4 W) 


IP30 

IP30 

IP30 



Weight 

390 / 590 / 245 

39 kg 

390 / 590 / 245 

39 kg 

390 / 590 / 245 

39 kg 


–25 to +50 °C 

–25 to +50 °C 

–25 to +45 °C 

82


SUNNY ISLAND 3324 / 4248 / 4248U 

Stand-Alone Grids 

Simpler than Ever Before 

The Sunny Island battery inverters 

Sunny Island 3324 and Sunny Island 

4248 are especially suitable for smallor 

medium-sized off-grid systems. The 

Sunny Island 4248U is available for 

countries with AC systems corresponding 

with the U.S. utility standard. Such 

energy sources as solar power, wind 

energy and hydropower systems can 

be connected on both the AC side or 

the DC side. The devices ensure a reliable, 

high-quality power supply and 

operate extremely quietly. Due to their 

excellent overload characteristics and 

their design for high ambient tempe- 

ratures, the SI 3324, SI 4248 and 

SI 4248U are suitable for use under 

extreme climatic conditions. Furthermore, 

they feature easy installation, 

quick commissioning and have an excellent 

price/performance ratio. 

83


Flexible 


• Single- and three-phase operation, 

connectable in parallel and 

modularly extendable 


Simple 

• Simple installation 

• Complete off-grid management 

• Easy remote configuration and 

monitoring with Sunny Remote 

Control 

Efficient 


• Long battery service life 

• Reliable state-of-charge evaluation 

Durable 

• For indoor and outdoor installation 

• Excellent overload characteristics 

• Very wide temperature range 


Output data 





30 / 5 / 1 min. 


Max. current 


Power factor 

Input data 

Input voltage 




Battery data 












Weight 


Sunny Island 2012* 

230 V (202 – 253 V) 

50/60 Hz (45 – 65 Hz) 

2000 / 1400 W 

2700 / 3600 / 3600 W 

8.7 A 

25 A eff (3 s) 

< 4 % 

–1 to +1 

230 V (172.5 – 250 V) 

50 Hz (40 – 70 Hz) 

25 A 

5.75 kW 

12 V (10.2 – 15.6 V) 

180 A 

150 A 

100 – 10000 Ah 



93 % 

21 W ( 6 W) 

IP54 

470 / 445 / 185 

18 kg 

–25 to +60 °C 


230 V (202 – 253 V) 

50/60 Hz (45 – 65 Hz) 

2200 / 1600 W 

2900 / 3800 / 3800 W 

9.6 A 

25 A eff (3 s) 

< 4 % 

–1 to +1 

230 V (172.5 – 250 V) 

50 Hz (40 – 70 Hz) 

25 A 

5.75 kW 

24 V (16.8 – 31.5 V) 

90 A 

80 A 

100 – 10000 Ah 



93.6 % 

21 W ( 6 W) 

IP54 

470 / 445 / 185 

18 kg 

–25 to +60 °C 

*preliminary information, dated April 2008 

84


SUNNY ISLAND 2012 / 2224 

Compact and Powerful 

for Small Off-Grid Systems 

New Sunny Island products: the 

Sunny Island 2012 and 2224 extend 

the product range for the lower power 

sector. The new devices not only include 

the well-known features from the 

big brother Sunny Island 5048: lower 

weight and reduced size make the 

new inverters even easier to handle 

and install. The high protection class 

IP54 and the Sunny Remote Control 

(SRC-1) give you full flexibility for the 

installation location. The integrated 

data storage and update feature via 

SD card results in additional user- and 

service-friendly operation. Easy-to-use 

technology at its best: the unbeatable 

combination for off-grid systems of up 

to 9 kilowatts. 

85


Efficient 

• Active MPP tracking 


System voltage (configurable) 


Charger 40 

12 V 


Charger 40 

24 V 


Charger 40 

48 V 

Durable 

• Indoor and outdoor installation 

due to IP65 

• Without fan 

• Nominal power up to 40 °C 

Simple 

• Easy installation and 

commissioning 

• Automatic control via Sunny Island 

• Single point of operation from the 


Flexible 

• For 12 / 24 / 48 V 

• Up to four devices in parallel 

• Modular and extendable 


Input (PV generator) 

Max. PV power 

Max. DC voltage 

Optimal MPPT voltage range 

Max. PV current 

Output (battery) 

Nominal DC power up to 40 °C 

Nominal battery voltage (range) 

Nominal charge current 




Euro Eta 

General 

Dimensions (width x height x depth) 

Enclosure rating (DIN EN 60529) 

Weight 

Device protection 

Parallel operation 


630 W 

140 V DC 

25 V – 60 V 

40 A 

600 W 

12 V (8 V – 15.6 V) 

50 A 

IUoU 

98 % 

97.3 % 

421 x 310 x 143 

IP65 

10 kg 

Short-circuit / reverse 

polarity / overload / 

overtemperature 

up to 4 devices 

–25 °C to +60 °C 

1250 W 

140 V DC 

40 V – 80 V 

40 A 

1200 W 

24 V (16 V – 31.5 V) 

50 A 

IUoU 

98 % 

97.3 % 

421 x 310 x 143 

IP65 

10 kg 





–25 °C to +60 °C 

2100 W 

140 V DC 

70 V – 110 V 

30 A 

2000 W 

48 V (36 V – 65 V) 

40 A 

IUoU 

98 % 

97.3 % 

421 x 310 x 143 

IP65 

10 kg 





–25 °C to +60 °C 

86


SUNNY ISLAND Charger 40 

DC Coupling from SMA: 

Maximum Efficiency and a Wide 

Range of Applications 

AC and DC coupling optimally combined 

and from one supplier: the 

Sunny Island Charger 40 developed 

by SMA can be used for 12, 24 and 

48 V. The wide input-voltage range 

results in a perfect configuration for 

nearly all PV modules. The charger‘s 

new MPP tracking system results in an 

energy harvest increase of 15 to 30 % 

compared with shunt or serial charge 

controllers. An outstanding feature 

for a charge controller in this power 

range is the high enclosure rating, 

the fanless operation and the wide 

temperature range, which allows its 

use all over the globe under the harshest 

conditions. The easy installation 

and the completely automatic adjustment 

of the controller parameters by 

the Sunny Island make the commissioning 

very easy. As it is integrated in 

the battery management of the Sunny 

Island, the battery is always optimally 

charged. 

87


Everything included 

• AC distribution 

• Fuses for the SI 5048 

• Generator contactor 

• Load shedding contactor 

• Connection for PV system 

Flexible 

• 3 different sizes from 30 up to 

110 kW 

• Different generator, PV and load 

sizes 

General 



Voltage range 

Nominal frequency (range) 


Mounting type 

Weight 

Connection for Sunny Island 

Number 

Continuous AC output at 25 °C 

AC output for 30 min. / 1 min. 

Nominal AC current at 25 °C 

Multicluster-Box-6 

3-phase 

3 x 230 V / 400 V 

172.5 – 250 V / 

300 – 433 V 

50 Hz (40 – 70 Hz) 

760 x 760 x 210 mm 

hanging 

approx. 55 kg 

6 

30 kW 

40 kW / 50 kW 

3 x 44 A 


3-phase 

3 x 230 V / 400 V 

172.5 – 250 V / 

300 – 433 V 

50 Hz (40 – 70 Hz) 

1000 x 1200 x 300 mm 

standing on base 

approx. 90 kg 

9 

45 kW 

60 kW / 75 kW 

3 x 65 A 


3-phase 

3 x 230 V / 400 V 

172.5 – 250 V / 

300 – 433 V 

50 Hz (40 – 70 Hz) 

1000 x 1400 x 300 mm 

standing on base 

approx. 110 kg 

12 

60 kW 

80 kW / 100 kW 

3 x 87 A 

Reliable 

• Active anti-islanding 

• Reverse current monitoring 

• Simple emergency operation of 

the generator 

• Robust due to high enclosure 

rating P65 


Connection for PV system 

Number 

Nominal AC power / AC current 

Connection for the loads 

Number 

Nominal power / current 


Number 

Nominal power / current 

1 x 3-phase 

55 kW / 3 x 80 A 

1 x 3-phase 

55 kW / 3 x 80 A 

1 x 3-phase 

55 kW / 3 x 80 A 

1 x 3-phase 

86 kW / 3 x 125 A 

1 x 3-phase 

86 kW / 3 x 125 A 

1 x 3-phase 

86 kW / 3 x 125 A 

1 x 3-phase 

110 kW / 3 x 160 A 

1 x 3-phase 

110 kW / 3 x 160 A 

1 x 3-phase 

110 kW / 3 x 160 A 




–25 °C ... +50 °C 

IP65 

–25 °C ... +50 °C 

IP65 

–25 °C ... +50 °C 

IP65 

Accessories 

Communication cable 

Multicluster-Piggy-Back 

4 x 5 m FTP Cat 5e 

optional 


optional 


optional 

88


Multicluster-Boxes for SUNNY ISLAND 5048 

Easy Design of Island and Hybrid 

Systems 

Install large off-grid systems with minimum 

effort: the new Multicluster-Boxes 

for the Sunny Island 5048 are the ideal 

solution for the easy installation of 

island and hybrid systems from 30 up 

to 110 kW. Two to four three-phase 

clusters, each consisting of three Sunny 

Islands, are connected in parallel. The 

Multicluster-Box is specially designed 

for this task as AC distribution with 

integrated generator and load shedding 

contactor. We made the installation 

as easy as possible for you: all 

wiring is ready for operation and the 

Multicluster-Boxes are equipped with 

a main connection for PV or wind energy 

systems for the desired power 

range. The communication cables necessary 

for the installation are naturally 

all included in the delivery. 

89


Flexible 

• Ideal supplement for power sources 

without external control in island 

grids 

• Usable from 45 Hz to 65 Hz 

• Stackable 

• Suitable for both 1-phase as well 

as three-phase operation 

Safe 

• Minimal AC distortion due to 

power factor control 

• Integrated power and frequency 

control 

Input data 

Nominal input voltage 

System frequency 

Input-voltage range 

Device protection 

Output data 

Output voltage 

Output power per phase 

Connections for 





Width / height / depth (mm) 

Weight 

Smart Load 6000 

230 V (single-phase) / 

3 x 400 V / 230 V 

with load tolerant 

neutral conductor 

45 – 55 Hz, 

55 – 65 Hz 

3 x 180 – 270 V 

Overvoltage protection, 

short-circuit- and 

overload-proof 

3 x 0 – 230 V 

3 x 2 kW / 1 x 6 kW 

3 resistors with 2 kW 

each 

1 resistor with 6 kW, 

open-circuit proof 

–25 °C to +50 °C 

IP65 

450 / 330 / 200 

14 kg 

90


Smart Load 6000 for SUNNY ISLAND 

Intelligent Dumpload 

for Stand-Alone Grids 

In off-grid systems the Smart Load 

is the ideal supplement for power 

sources without power control, such as 

small wind power plants with passive 

stall control. In the event of an electricity 

surplus, the Smart Load feeds 

the surplus to special loads, for example, 

heating cartridges in a hot water 

tank. The energy quantity at which the 

Smart Load automatically switches on 

can also be freely programmed using 

the grid frequency. This continuous 

and rapid power extraction is a 

unique function that provides optimum 

protection for the system components 

and ensures added reliability. Smart 

Loads can be combined and operated 

in parallel. The Smart Load SL 6000 

can be installed as desired in either 

single- or three-phase AC-coupled 

stand-alone grids. 

91

Why AC Coupling? 

Reliable power supply for off-grid 

systems: in stand-alone grids and all 

off-grid power supply systems, the expandability 

as well as the type of connection 

of the individual components 

plays an important role. The AC-coupling 

from SMA lets you connect power 

sources as well as power consumers 

to the AC network. The system can 

be easily extended on the consumer 

side and the source side. 

Functional Principle 

The Sunny Island is connected to a battery 

and establishes a steady AC grid 

in the island system. The Sunny Island 

controls the voltage and frequency on 

the AC side. Both the loads as well as 

the generators (e.g., Sunny Boy solar 

inverter) are directly connected to this 

AC grid. In the event of an energy surplus 

(e.g., high solar irradiation and 

low consumption), the Sunny Island 

draws energy from the AC grid and 

uses it to charge the batteries. If there 

is an energy shortage, (little or no solar 

irradiation and high consumption), 

the Sunny Island supplies the grid with 

the aid of the batteries. 

Flexible 

You can incorporate almost any kind 

of power generator into your Sunny 

Island stand-alone grid: solar energy 

systems with Sunny Boy inverters, 

wind turbines with SMA Windy Boys, 

hydroelectric power stations, and diesel 

generators that jump in when the 

battery level declines. Island grids 

with the Sunny Island 2012, 2224 or 

the 5048 are stackable and can be 

easily combined with larger systems. 

The Sunny Islands are combined in 

so-called clusters in order to ensure 

high system reliability. Together with 

the battery, up to four devices form 

one unit. To ensure that the required 

output is achieved, several such units 

can be connected in parallel. The advantage: 

if one battery fails, this does 

not affect the entire system. 

92


AC Coupling Principle 

AC coupling of power supply systems 

for stand-alone grids is a future-proof 

concept. Island grids with Sunny 

Island battery inverters are installed 

all over the globe and perform their 

task reliably. The modular extendability 

with further Sunny Islands or other 

generators on the AC side gives you 

the ability to react promptly and flexibly 

to increasing consumption. 

More detailed information on the subject 

of AC coupling and power supply 

systems with Sunny Island is available 

in the "Know-how" section of this catalog, 

on our DVD "Energy Supply to 

Off-Grid Regions – Flexible and Easily 

Extendable" and at www.SMA.de. 

93

Pictures: Proven Energy Ltd., Geiger Windtechnik GmbH, Southwest Windpower 

Diversity 

With the experience gained through 

the installation of more than three gigawatt‘s 

worth of inverter power, we 

have now developed the Windy Boy 

product line, a new family of inverters 

for connecting small wind turbines 

to the grid. There are various device 

types available with a power range 

of 1000 W to 6000 W and all are 

suitable for use with wind generators 

from a variety of manufacturers and 

power classes. 

High Yields 

It is only possible to achieve high yields 

from your wind turbine if the inverter is 

precisely synchronized with the output 

characteristics of the wind generator 

being used. In contrast to photovoltaic 

applications, it should also be able to 

cope with continuous and quick load 

changes. The Windy Boy inverter has 

a special operational mode for wind 

generators which allows performance 

adjustment to the characteristic curves 

of many different manufacturers’ generators. 

Adjustment can also be made 

for the different wind strengths of the 

various wind turbine locations. 

Universal 

The system can be used almost anywhere 

in the world with minimum installation 

costs and simplified authorization 

procedures thanks to its transformer-based 

concept, the grid guard 

automatic disconnection unit, its automatic 

50 Hz / 60 Hz recognition, and 

a number of special country approvals. 

Durable 

The ensured operation of the system in 

extreme climatic conditions is of particular 

importance in the wind sector. 

The Windy Boy is suitable for indoor 

and outdoor installation, e.g., directly 

on a mast, thanks to its particularly 

robust housing and waterproof plug 

connector. 

Monitoring 

As well as a display, there are various 

options for diagnostics, data visualization, 

data storage and remote maintenance 

of your wind turbine system 

via standard interfaces (RS232 and 

RS485) or wireless data transmission. 

Compatibility with all SMA communication 

products offers you a wide 

range of applications, including system 

monitoring via the Internet. 

96


WINDY BOY 

Grid Connection of Small Wind Turbine Systems 

In contrast to multi-megawatt systems, 

small wind turbines are mainly used 

as battery chargers for stand-alone 

power supplies, as heating mills for 

the support of heating systems, and as 

wind pumps for water supply systems. 

There are a number of very attractively 

priced wind generators for these 

application areas. In recent years 

another trend has become evident: 

the use of small grid-connected wind 

turbines, from which the energy generated 

is fed into existing public grids or 

stand-alone grids, e.g., in combination 

with Sunny Island. Indirect feeding 

guarantees maximum flexibility: the 

energy generated can either be consumed 

or supplied as excess energy 

to the public grid without the need for 

interim storage in a battery. The saving 

is substantial, the expensive and 

maintenance-intensive batteries are 

obsolete. 

The conversion of the speed-dependent 

voltage from the turbine into gridcompliant 

AC current is easier than 

ever: the Windy Boy Protection Box 

allows the safe and reliable grid connection 

of small wind turbines with 

Windy Boy inverters. It converts the 

variable voltage from the turbine to 

DC voltage and protects the Windy 

Boy from high voltage at the same 

time. The Windy Boy then converts 

the DC voltage to grid-compliant AC 

voltage. All one then needs is a power 

resistor in order to discharge the overvoltage. 

• 

• 

97


Windy Boy 3300 


Windy Boy 5000A 

Windy Boy 6000A 

Input data 

Recommended generator power 

with 2500 full load hours p.a. 


Nominal voltage (U DC, nom ) 


DC voltage range (U) 

Max. input current (I max ) 



2970 W DC 

2640 W DC 

200 V 

500 V 

200 V – 500 V 

20 A 

yes 

< 10 % 

3420 W DC 

3040 W DC 

200 V 

500 V 

200 V – 500 V 

20 A 

yes 

< 10 % 

4500 W DC 

4000 W DC 

270 V 

600 V 

246 V – 600 V 

26 A 

yes 

< 10 % 

5400 W DC 

4800 W DC 

270 V 

600 V 

246 V – 600 V 

26 A 

yes 

< 10 % 

Output data 








3600 W 

3300 W 

< 3 % 

220 V – 240 V 

50 Hz / 60 Hz 



3800 W 

3800 W 

< 3 % 

220 V – 240 V 

50 Hz / 60 Hz 



5500 W 

5000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 



6000 W 

6000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 



Efficiency 


95.2 % 

95.6 % 

96.1 % 

96.1 % 



IP65 

IP65 

IP65 

IP65 



Weight 

450 / 352 / 236 

41 kg 

450 / 352 / 236 

41 kg 

468 / 613 / 242 

62 kg 

468 / 613 / 242 

63 kg 

98


WINDY BOY 3300 / 3800 / 5000A / 6000A 

• Special operation mode for wind 

power plants 

• Freely configurable U/I 

characteristics 

• OptiCool 


• SMA grid guard: independent disconnection 

device in accordance 

with DIN VDE 0126-1-1 

• Electric separation with transformer 


–20 °C to +60 °C 

• Integrated 2-line display 

• Diagnosis and communication via 

display, radio, and cable 

(RS232 or RS485) 


(10 years optional) 

Windy Boy 3300 / 3800 

Like the Windy Boy 5000A and 

6000A, the Windy Boys 3300 / 3800 

are equipped with the innovative ventilation 

system OptiCool. The inverters from 

SMA offer easy handling, simplified installation, 

and high efficiency unique to 

inverters of this power class. 

Windy Boy 5000A / 6000A 

The Windy Boy 5000A / 6000A harvests 

high yields at low costs. The new 

active ventilation concept OptiCool 

ensures secure system operation even 

with high ambient temperatures, and 

optimum protection of the electronics 

within the housing with IP65 protection 

rating. The Windy Boy 5000A 

and 6000A are therefore ideal for either 

indoor or outdoor applications. 

99



power plants 









–20 °C to +60 °C 




(RS232 or RS485) 



Input data 










Output data 








Efficiency 



2070 W DC 

1840 W DC 

300 V 

600 V 

224 V – 600 V 

12 A 

yes 

< 10 % 

2500 W 

2300 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 



94.1 % 


2475 W DC 

2200 W DC 

350 V 

600 V 

268 V – 600 V 

12 A 

yes 

< 10 % 

3000 W 

2750 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 



95 % 



IP65 

IP65 



Weight 

434 / 295 / 214 

30 kg 

434 / 295 / 214 

32 kg 

100


WINDY BOY 2500 / 3000 

Their broad input-voltage range, excellent 

efficiency across the whole power 

range, and superb reliability make the 

Windy Boys 2500 and 3000 the first 

choice for your small wind power system. 

The robust housing design and 

IP65 high protection rating ensure 

secure operation even in extreme climatic 

conditions, both indoors and 

outdoors. 

101



power plants 

• Optimized for lowest input voltages 

from 21 V to 60 V 









–20 °C to +60 °C 




(RS232 or RS485) 



Input data 










DC connection 

Output data 








Efficiency 






Weight 

Windy Boy 1100LV 

900 W DC 

800 W DC 

25 V 

60 V 

21 V – 60 V 

62 A 

yes 

< 10 % 


1100 W 

1000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 



92.0 % 

IP65 

434 / 295 / 214 

29 kg 

102


WINDY BOY 1100LV 

The 1100LV is optimal for special 

applications with very low input voltages. 

The device is designed for DC 

input voltages of 21 V to 60 V, and 

accepts currents of up to 62 A. Very 

small wind turbines with low output 

voltages can thus be easily connected 

to the grid, or integrated into a standalone 

grid with Sunny Island. 

103



power plants 









–20 °C to +60 °C 




(RS232 or RS485) 



Input data 










Output data 








Efficiency 



900 W DC 

800 W DC 

180 V 

400 V 

139 V – 400 V 

10 A 

yes 

< 10 % 

1100 W 

1000 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 



93 % 


1395 W DC 

1240 W DC 

180 V 

400 V 

139 V – 400 V 

12.6 A 

yes 

< 10 % 

1700 W 

1550 W 

< 4 % 

220 V – 240 V 

50 Hz / 60 Hz 



93.5 % 



IP65 

IP65 



Weight 

434 / 295 / 214 

22 kg 

434 / 295 / 214 

25 kg 

104


WINDY BOY 1100 / 1700 

The Windy Boys WB 1100 and 1700 

are inverters for small and very small 

wind turbine systems for grid feeding 

and for use in stand-alone grids. The 

devices are compatible with all communication 

products and impress with 

IP65 high protection rating and SMA 

grid guard grid monitoring, which can 

be deployed anywhere in the world. 

105


• Highly dynamic overvoltage 

protection 

• Yield protection: grid feeding even 

with excessive input voltage 

• Optimal start-up performance of 

the wind turbine 

• Three-phase generator connection 

• High efficiency of the rectifier 

• Easy installation 

• Available in three voltage versions: 

400, 500 and 600 V 

General 

Suitable for 

Rectifier 


Weight 


Number 

AC voltage 

AC current 

Generator frequency 

Rated power 

Windy Boy 

Protection Box 400 

WB 1100, WB 1700 

integrated 

280 x 220 x 130 mm 

5 kg 

1 x 3-phase 

3 x 0 to 500 V AC 

3 x 0 to 11.5 A AC 

0 to 400 Hz 

1 to 2 kW 

Windy Boy 


WB 3300, WB 3800 

integrated 

280 x 220 x 130 mm 

5 kg 

1 x 3-phase 

3 x 0 to 500 V AC 

3 x 0 to 11.5 A AC 

0 to 400 Hz 

3 to 4 kW 

Windy Boy 


WB 2500, WB 2800i, 

WB 3000, WB 5000A, 

WB 6000A 

integrated 

280 x 220 x 130 mm 

5 kg 

1 x 3-phase 

3 x 0 to 500 V AC 

3 x 0 to 11.5 A AC 

0 to 400 Hz 

2 to 6 kW 

Windy Boy connection 

Number 

Voltage limitation 

Total output 

3 

400 V DC 

3 kW 

3 

500 V DC 

4 kW 

3 

600 V DC 

6 kW 

Load resistor connection 

Number 


Continuous power 

1 

400 V DC 

3 kW 

1 

500 V DC 

4.5 kW 

1 

600 V DC 

6 kW 

Efficiency 


Losses at continuous power 

> 99.95 % 

15 W 

> 99.95 % 

20 W 

> 99.95 % 

30 W 




–25 °C to +60 °C 

IP54 

–25 °C to +60 °C 

IP54 

–25 °C to +60 °C 

IP54 

Accessories 

Load resistor 

optional 

optional 

optional 

106


WINDY BOY PROTECTION BOX 

Optimal Protection 

for Small Wind Power Plants 

Rectifier and overvoltage protection 

– the Windy Boy Protection Box from 

SMA is multitalented: the Windy Boy 

Protection Box limits excessive voltage 

and power from the generator and 

redirects it to a load resistor without 

limiting the power of your small wind 

energy plant. This reliably protects the 

inverter from high input voltages and 

ensures trouble-free operation. 

The Windy Boy Protection Box is 

equipped with a three-phase rectifier. 

It is delivered as a turnkey unit and 

can be used with nearly all types of 

generators from various manufacturers 

and in different power classes. 

This not only makes the Windy Boy 

Protection Box the optimal solution for 

wind power plants, but also provides 

the perfect link between permanent 

magnet generators and the inverter. 

107

108

109

110

Everything under Control, 

With System Monitoring from SMA 

Monitor your yields from anywhere 

you want. Reliable monitoring is essential 

for every PV system in order 

to ensure the earnings. The powerful 

analysis and control possibilities from 

SMA give plant operators all the tools 

they need. 

We do not only have innovative concepts 

for large-scale systems. From the 

wireless Sunny Beam for smaller systems, 

to the proven Sunny Boy Control, 

down to Internet-based, worldwide 

system monitoring with the Sunny 

WebBox and Sunny Portal, we offer 

the right technical solutions to meet 

any requirement. 

Our products are based on the prevalent 

communication standards, so they 

can be added easily to any existing 

structure. The main new feature is the 

fast wireless communication via Bluetooth 

that allows a radio-based network 

with up to 100 inverters. Analog 

to this we have developed the free 

Sunny Explorer software for flexible 

monitoring via laptop. 

SMA products for system monitoring 

are well-prepared for all future communication 

and service options. They 

allow integration into virtual power 

plants as well as the implementation 

of modern concepts for grid control 

and grid support. 

111

Simply Wireless 

• Wireless communication without 

cables 

• Intelligent SMA Bluetooth mesh 

with up to 100 devices 

• Highest possible communication 

range with up to 100 meters in the 

open field 

• Standard in all Sunny Boys of the 

the new generation 

• Optional for other devices 

Use radio waves where one used to 

lay cables – Bluetooth technology 

makes it possible: the international industry 

standard for wireless communication 

makes cables obsolete. 

The devices can now form intelligent 

wireless networks – with an operating 

range up to 100 meters in the open. 

This makes Bluetooth usable for large 

PV systems. 

Bluetooth is the interface for wireless 

communication. Complicated cable 

connections between the computer, 

the SMA monitoring system, and the 

Sunny Boys are not necessary anymore. 

For long-term monitoring, a 

quick reading of the current values, or 

for configuration – with Sunny Beam 

Bluetooth, Sunny WebBox Bluetooth, 

and the free PC software Sunny Explorer 

from SMA, one has the right 

solution for any application. 

112

Solare Datentechnik 

Wireless Communication via Bluetooth: 

Intelligently Connected. Beyond Bounds. 

Long Range 

SMA uses Class 1 Bluetooth in order 

to provide the longest transmission 

distances of up to 100 meters in the 

open and therefore the highest possible 

flexibility. As a comparison: standard 

mobile phones have a range of 

approximately 10 meters when they 

communicate via Bluetooth. 

a distance of up to 100 meters in the 

open field. If, for example, one installed 

ten bluetooth-capable inverters 

at 100-meter intervals in an open field, 

one could communicate with all devices, 

even those at a distance of 1,000 

meters. The only requirement is that 

one be within reception of one inverter. 

100 Communication Participants 

Intelligent Bluetooth Mesh 

The intelligent mesh results in a large 

number of communication devices 

for large radio-based communication 

networks. Each Bluetooth device is 

automatically used as a repeater that 

transmits the data of the connected devices. 

The Bluetooth devices can cover 

While standard Bluetooth devices can 

only communicate with seven participants, 

Bluetooth devices from SMA 

can connect with up to 100 units – for 

nearly unlimited communication. 

And by the way: in case wireless 

communication is not desired, the 

Bluetooth interface can naturally be 

deactivated. 

Intelligent networking from SMA: example of a Bluetooth mesh with inverters and system monitoring from SMA. 

113


Innovative 

• Wireless tabletop device 

• Radio communication with the 

inverters 

Simple 

• Quick installation 

• Power supply via integrated 

solar cell 

User friendly 

• Large, easy-to-read LCD display 

• Display: current power, daily 

energy, monthly energy 

• USB port for data transfer to PC 

and battery charge 

• Simple, intuitive interface 

Communication 

Frequency band 

Range in open air 

Range inside buildings 

Max. number of inverters 

Interface 

Display 

LCD 

Operation 

Language 


Width / Height / Depth (mm) 

Weight 

Display of following data 

Data storage 

Sunny Beam* 

868 MHz 

up to 100 m 

up to 30 m 

4 

USB 1.1 

graphic capability 

(160 x 100 pixels) 

1 x 5-digit 7-segment 


rotating push button 

Ger. / Engl. / Span. / French 

127 / 75 / 195 

350 g 

Total power of the inverters, 

energy yields of the past 31 days, 

earnings in definable currency, 

CO 2 savings 

Storage of all system data via 

Sunny Data Control: 

daily yield, earnings, 

CO 2 savings (min. 1x monthly), 

Power (min. 1x per day) 

Sunny Beam Bluetooth 

Bluetooth 

up to 100 m 

up to 30 m 

12 

USB 2.0 

graphic capability 

(160 x 100 pixels) 



rotating push button 

Ger. / Engl. / Span./ 

Fren./Greek/ Ital. 

127 / 75 / 195 

350 g 

Total power and power of each 

single inverter, energy yields of 

the last 31 days and the last 12 

months, earnings in specified currency, 

CO 2 savings, specific 

annual yield, 

up to 25 system events 

Storage of the data of the entire 

plant and the single inverters for at 

least 100 days, easy transmission 

of the data to a PC without additional 

software 

* Sunny Beam is not compatible with the Sunny Boys 

of the new generation (SB 3000TL, SB 4000TL, SB 5000TL) 

114


SUNNY BEAM / SUNNY BEAM 

Wireless Monitoring 

for Private Plant Owners 

Sunny Beam Bluetooth 

Radio-based data transmission together 

with a solar-cell integrated in 

the device make the Sunny Beam an 

innovative monitoring solution. The 

clearly arranged display provides all 

the important data at a glance: daily 

graph, present output, and daily and 

total energy yield. And even more: 

the power of the single inverters, the 

monthly overview, the energy yield 

in Euro or the saved CO 2 emissions 

can be activated with an easy-to-use 

menu. 

Intelligent network with up to 12 inverters 

at the same time: the new version 

of the Sunny Beam communicates via 

Bluetooth, just like the new generation 

of Sunny Boys. The Sunny Beam can 

store the data of the single inverters 

and the data of the entire plant for at 

least 100 days. With the Sunny Beam 

Bluetooth, plant operators do not require 

any additional software in order 

to transfer the data to a PC. The Sunny 

Beam Bluetooth has a menu that is 

even easier to use and can emit an 

acoustic signal in case there are yield 

deviations. Yield monitoring cannot 

be any easier. 

Power supplied via 

Solar cell and 

rechargeable battery 

Radio communication 

with the inverters 

USB interface for data 

transmission to PC and 

charging of the batteries 

Easy and intuitive 

operation with the 

rotating pushbutton 

Compact and lightweight 

Dimensions: 127 x 75 x 195 mm 

Weight: approx. 350 g 

Large, easy-to-read 

LCD display 

115


Safe 

• 24-hour control of the PV system 

• Radio-based plant monitoring with 

Bluetooth 

• Early detection of operational 

failures 

• Logging of energy yields 

• Safe data storage for evaluation 

using MS Excel 

User friendly 

• Diagnostics and system configuration 

using any PC (Windows, 

Linux, Mac OS) 

• Automatic data transfer in freely 

definable intervals 

• Free data conversion and graphical 

display on the Internet via 

Sunny Portal 

Interfaces 

Inverter communication 

Modem 

Ethernet 

Memory extension 

SD card 



Weight 

Power supply 

Plug-in power supply 

Power consumption 

Environmental conditions 

for operation 



General Data 

Status display 

Installation options 

Sunny WebBox 

Bluetooth Class1 (up to 100 inverters, 

max. 100 m in the open field) 

RS485 (up to 50 inverters, 

max. 1200 m cable) 

Ethernet (only Sunny Central 

Communication) 

internal analog modem or 

GSM modem (optional) 

10 / 100 MBit, 

connection to the LAN network, 

Sunny Matrix and Sunny Portal 

up to 2 GB 

225 / 130 / 57 

750 g 

115 – 230 V 

50/60 Hz 

typ. 4 W / max. 12 W 

–20 °C to 55 °C 

5 % to 95 % 

integrated LEDs 

wall mounting, tabletop device 

116


SUNNY WEBBOX 

The Communication Center 

Plant monitoring, remote diagnosis, 

data acquisition and visualization: 

the Sunny WebBox is the communication 

center for medium-sized and large 

PV power plants. On the system side, 

it continuously gathers all data from 

the inverters and thereby allows you 

to remain constantly informed of your 

system's status at any given time. 

The various features of the Sunny 

WebBox allow a wide range of different 

options for displaying, storing and 

processing the data of the PV plant. And 

the Sunny WebBox is easy to install, the 

integrated Bluetooth interface allows 

wireless communication with inverters 

that are equipped with Bluetooth. 

The Sunny WebBox is the solution for 

operators requiring seamless acquisition 

of all system-related data. Systems 

without a broadband Internet connection 

or telephone connection can 

transmit the data to the Sunny Portal 

via GSM modem. 

Communication with the 

inverters via the serial interface 

(RS485) and Powerline 

(via SWR-COM-USB) 

Integrated web server for 

remote online access to all 

current data from any PC 

Representative display 

of the plant data 

with the large display 

Sunny Matrix 

Free and automatic 

permanent storage and 

visualization of the measuring 

data in Sunny Portal 

Integrated FTP server 

for data storage and 

transmission to the PC 

Memory extension 

and data transmission 

to the PC with removable 

SD card 

Individual processing 

of the measuring data 

on the PC 

117


Precise 

• Complete system monitoring for 

PV plants 

• Measurement of irradiation, 

module temperature, ambient 

temperature and wind speed 

Easy to use 

• Easy installation right next to the 

solar modules 

• Integration into existing systems 

via serial interface RS485 

• Compatible with Sunny WebBox 

and Sunny Boy Control 

• Data analysis on the PC or in the 


Interfaces 

to the data logger 

Internal sensor 

Solar radiation 

Possible external sensors 

Temperature 

Wind measurement 

Power supply 

via RS485 line 





Weight 

Sunny SensorBox 

RS485 to Sunny WebBox 

ASI-Solar-Module, amorphous, 

Precision ±8 % 

module temperature sensor (Pt100) 

attachable, 

precision ±0.5 °C; 

ambient temperature sensor (Pt100), 

Precision ±0.5 °C 

external wind sensor 

0.8 to 40 m/s 

–25 °C to +60 °C 

(if free of ice) 

via RS485 Power Injector 

IP65 

–25 °C to +70 °C 

120 / 90 / 50 

500 g 

118


SUNNY SENSORBOX 

Comprehensive Performance 

Analysis for Professionals 

In this way we meet professionals‘ demand 

for complete and comprehensive 

performance analysis, also on the 

generator side. The Sunny SensorBox 

is installed right next to the PV generator 

and measures solar radiation and 

module temperature. 

From the present irradiation level and 

the module temperature, it is now 

possible to calculate the expected 

output, and to compare it with the 

actual measured output of the inverters. 

Significant deviations indicate a 

plant malfunction. Dirt, shadows or 

faults that are slowly building up, 

such as degradation, can easily be 

detected. Any yield losses which 

should have been avoided are therefore 

a thing of the past. 

The Sunny SensorBox, together with 

the inverters, is easily connected to a 

Sunny WebBox via the serial RS485 

data link. The power supply is done 

with a separate SMA Power Injector. 

The Sunny WebBox transmits the 

data to a PC or automatically sends 

the values to Sunny Portal for further 

processing. 

The Sunny SensorBox also enables 

the connection of additional sensors, 

e.g., to measure the ambient temperature 

or wind speed, or an external irradiation 

sensor for calculations which 

are even more precise. This ensures 

reliable system monitoring for operators 

– and maximum yield security for 

faster payback times. 

Communication with 


via RS485 

Continuous comparison of real power and 

potential power (performance ratio) in Sunny 

Portal for detection of yield deviations. 

Compact solution for the 

extension of your PV-system 

monitoring with all relevant 

ambient conditions 

Measurement of irradiation, module 

temperature and optionally of ambient 

temperature and wind speed 

Easy installation. 

Data transmission and 

power supply over one 

cable possible 

119


Durable 

• Aluminum enclosure for outdoor 

installation 

• Durable front panel print 

User friendly 

• Easy configuration and operation 

via web-interface with PC via 

Ethernet 

• Display of yield, power and 

avoided CO 2 

Flexible 

• Texts can be freely edited and 

displayed with automatic banner 

function 

• Changing displays by means of 

day/night switching 

• Different sizes for any application 

• Individual front panel design 

Communication 

to the data logger 

Connections 

Ethernet 

Max. communication range 

Ethernet / Fast Ethernet 

Power supply 

Input voltage 

Power consumption 

Environmental conditions 

for operation 



General Data 

Dimensions (W / H / D) in mm 

Weight 

Mounting site 

Installation options 

Features 

Operation 

Displayed information 

General information 

System data 

SensorBox data 

Sunny Island data 

Sunny Matrix 

Ethernet to Sunny WebBox 

10/100 Mbit, RJ45 

100 m 

85 V – 265 V AC, 50 / 60 Hz 

typ. 20 W + 5 W per 4-digit display 

module 

–25 °C to +60 °C 

IP54 

800 x 400 x 120 

800 x 800 x 120 

800 x 1000 x 120 

15 kg / 20 kg / 25 kg 

Outdoor 

wall mounting 

Integrated web server (Internet browser) 

Time, date, freely editable text, freely 

editable web-text 

Current power, energy today, total yield, 

CO 2 saved 

Ambient temperature, module temperature, 

internal solar radiation, wind speed 

Battery charge level 

120


SUNNY MATRIX 

Large Weatherproof Display with 

Automatic Day/Night Function 

All solar yields at a glance: with the 

Sunny Matrix weatherproof large display 

you can show your visitors and 

employees the yields, power, and the 

amount of avoided CO 2 , in large illuminated 

symbols. The ecological 

impact can thus be easily shown to 

everybody. 

The Sunny Matrix is either directly connected 

to the Sunny WebBox using its 

Ethernet connection, or to your company 

network via a router or hub. The 

display is then automatically supplied 

with the current data. The ambient conditions 

can be displayed if a Sunny 

SensorBox is available. 

What distinguishes the Sunny Matrix 

from the competitors is its flexibility: 

various formats, freely configurable 

layout, and a variable number of lines 

and characters on the display make 

the Sunny Matrix an ideal solar information 

display. 

The Sunny Matrix is a unique product 

for all who wish to present their PV 

system performance to the public. 

Representative display of your 

plant, both indoors and outdoors 

Three different enclosure 

sizes for every application 

Automatic data 

synchronization 

with the 


Display of irradiation levels 

and module and ambient 

temperatures when 

connected to the 

Sunny Sensor Box 

Positioning and length 

of the four text displays 

is virtually free 

Individual design 

of the front screen 

according to your 

preference 

Configuration and operation 

from any PC via Ethernet 

using the integrated web 

server of the Sunny Matrix 

Maximum flexibility thanks 

to slide show at night, 

changing displays, free text 

and running banners 

121


Attractive visual presentation 

• Easy to understand 

• Easy to read 

• Informative 

Display of current 

performance data 

• Solar yields 

• Current power 

• Ecology (CO 2 savings, conversion 

of the CO 2 emissions of a medium-sized 

vehicle into kilometers 

driven) 

• Environmental data (irradiation, 

module and ambient temperature, 

wind speed) 

High user-friendliness 

• Easy installation and operation 

• Automatic update of data 

• Standard hardware for presentation 

is sufficient 

• Free download 

System requirements 

Supported operating systems 

Software 

Recommended browser 

Miscellaneous 

Hardware (minimum requirements) 

Processor 

Main memory 

Available hard disk space 

Resolution 

Color depth 

Displayed information 

System data 

Miscellaneous 

SensorBox data 

Flashview for Sunny WebBox 

Windows XP starting with SP2 

Windows Vista 

Internet Explorer version 5.01 and later 

Adobe Flash Player 9.0.115.0 

WinZip 

PIII 800 MHz (XP) / P4 1 GHz (Vista) 

256MB (XP) / 1GB RAM (Vista) 

11 MB 

1024 x 768 pixels 

256 colors 

Current power, energy today, total yield, 

CO 2 saved 

kilometers driven 

Ambient temperature, module temperature 

internal solar radiation, wind speed 

122


Flashview for SUNNY WEBBOX 

Free Professional Plant 

Presentation 

Yields, present output, ecology and 

environmental data: with FlashView 

for Sunny WebBox, customers present 

themselves and their solar yields in 

a modern design. All you need is 

a standard PC, a monitor, the free 

software and your existing Sunny 

WebBox. 

The slides change automatically within 

the clearly organized presentation. 

However, the viewer can also use the 

option of participating interactively 

and skipping between the slides man- 

ually. The system data are continually 

updated approximately every 30 

seconds. 

This PC application is ideal for everyone 

who does not want to commit to a 

conventional solar display. 

Due to the simple installation and the 

clear, well-arranged configuration 

menu, system operators can present 

themselves online with only a few 

mouse clicks. 

The FlashView for Sunny WebBox 

is not only interesting for large-scale 

system operators. It lets operators of 

smaller solar power systems present 

their solar yields to the public without 

expensive and time-consuming installation. 

123


Safe 

• Wireless monitoring of the PV system 

with Bluetooth technology 

• Yield overview at a glance 

• Easy and quick diagnosis of plant 

status 

Easy to use 

• Graphic display of relevant plant 

data 

• Storage of plant data 

• Free-of-charge data processing via 


Interfaces 

Inverter communication 



Software 

Hardware 

(minimum requirements) 

Processor 

Main memory 

Available hard disk space 

Resolution 

Color depth 

Interfaces 

Sunny Explorer 

Bluetooth Class1 (up to 100 inverters, 

max. 100 m in the open field) 

RS485 (up to 50 inverters, 

max. 1200 m cable) 

Windows XP (Servicepack 2) 

Windows Vista 

.NET Framework 2.0 

PIII 800 MHz (XP) / P4 1 GHz (Vista) 

256MB (XP) / 1GB RAM (Vista) 

250 MB 

1024 x 768 pixels 

256 colors 

Bluetooth (recommended Class 1) 

124


SUNNY EXPLORER 

Just switch on your laptop or PC, activate 

the Bluetooth interface and start 

the program for an immediate overview 

of the system performance. The 

free Sunny Explorer PC software is the 

perfect addition to the new Sunny Boy 

generation. It lets you visualize key PV 

system data immediately and in real 

time on your PC or laptop using Sunny 

Explorer. And, thanks to Bluetooth, it’s 

completely wireless. 

Sunny Explorer offers system operators 

a variety of options, such as a quick 

overview of the PV system status. It can 

also output present system data and 

lets you archive solar yields and pre- 

viously calculated measurement data. 

Sunny Explorer also helps operators 

who want to present their solar power 

system online to compare it with other 

PV systems or who request a comprehensive 

evaluation: it transmits the 

data to the Sunny Portal on request. 

Wireless Service Made Easy 

Sunny Explorer also scores points with 

its excellent service. No extensive wiring 

with inverters is required, and PV 

system maintenance is quick as a flash 

and convenient. The display of the current 

plant data and the event history 

allows a quick plant diagnosis. Sunny 

Explorer also provides the perfect support 

for changing parameters and updating 

inverters. 

Visualization of the relevant 

data of the PV plant 

Communication with the 

inverters via Bluetooth 

or RS485. 

Free-of-charge archive 

and visualization of the 

data in Sunny Portal 

Individual processing of 

the data on a private PC 

Quick overview of the 

status of the PV plant 

125


Easy to read 

• Display of the performance data 

in graphs and tables 

• Display of earnings and CO 2 

saved 

• Free data storage 

Custom-tailored page design 

• Creation of several web pages 

with visualizations of system data 

• Individual page design based on 

HTML 

• Integration of personal plant 

images 

• Public access for selected 

Sunny Portal pages 

Performance features 



Data transfer to the portal 


Sunny Explorer 

Sunny Boy Control and Sunny Boy 

Control Plus with NET Piggy-Back 


processing of measurement data, error 

and status messages via e-mail to PC or 

mobile telephone, remote monitoring for 

protection against yield losses 

Microsoft Internet Explorer 

version 5.5 or above 

Ethernet 10 Mbit/100 Mbit, 

USB 1.1 Client, 

analog, ISDN, DSL or GSM 

via mail function 

User friendly 

• Plant information via e-mail 

(e.g., yield, max. power, 

CO 2 saved, system messages) 

• Compatible with Sunny WebBox, 

Sunny Explorer and Sunny Boy 

Control 

126


SUNNY PORTAL 

Visualization and Data Storage on 

the Internet – with Sunny Portal 

Flexible Remote Diagnosis 

Customized Presentation 

Advanced plant communication and 

attractive visualization: the completely 

preconfigured Sunny Portal is suitable 

for the operators of small plants as 

well as shareholders of solar parks. 

The free web service shows the performance 

data for any plant size on 

the Internet. SMA naturally offers longterm 

data storage. 

Mobility and communication around 

the globe: Sunny Portal lets you see 

the current yield over a secure Internet 

connection. As a free web service 

by SMA, SunnyPortal offers you, for 

example the display of yields, power 

data, and earnings as well as the automatic 

dispatch of status reports via 

e-mail. PV plant operators are then 

fully informed about the performance 

of the system. 

The different pages in the portal can 

be configured in order to have an individual 

layout. The values of the single 

inverters or the plant as a whole 

can be presented as an easy-to-read 

overview. Different graph types such 

as bar or line charts are available. All 

pages can be activated for public access 

or in protected areas for a limited 

number of visitors. 

127


Simple 

• Suitable for all plant sizes 

• Comfortable and easy handling 

• User-friendly layout 

• High flexibility 

Flexible 

• Monitoring and remote 

diagnostics 

• Integrated load management 

• Low energy consumption 

• Connection to a large display 

Electrical Connection 

Grid voltage (U AC ) 



Communication 

Inverters (COM1) 

PC (COM 2) 

Relay out 

NET socket (optional) 

Display 

LC display 

Operation 



Max. different device types 

Energy values per device 


Sunny Boy Control 

110 V – 240 V 

50 Hz – 60 Hz 

2 m, 3 conductors 

RS485 

RS232 or RS485 

2 switching contacts 

Integrated modem available in 3 versions 

(analog, ISDN, GSM) or Ethernet 

4 x 16 characters 

4 buttons 

50 

10 

1 year 

up to 250 

Housing 



IP40 

–25 °C to +55 °C 



Weight 

234 / 127 / 68 

1400 g 

128


SUNNY BOY CONTROL 

The Proven Workhorse 

for Detailed System Monitoring 

With its low energy consumption and 

the possibility to record up to 250 online 

channels, the Sunny Boy Control 

is optimally equipped to record operating 

data over the long term for smaller 

PV systems up to systems in the MW 

range. Direct connection of a PC, e.g., 

for analysis of the performance, is also 

possible as well as is the connection 

of a large display for presentation of 

the system. The communication with 

the inverters is done via RS495. One 

single Sunny Boy Control can monitor 

up to 50 Sunny Boys of different power 

classes. In large systems, several 

Sunny Boy Controls are coupled together. 

Yield Security in Focus 

The Sunny Boy Control sends status 

reports via e-mail or fax on a regular 

basis in order to let you detect performance 

deviations as early as possible. 

Plant operators simply need to connect 

an external modem or have the 

Sunny Boy Control equipped with a 

NET Piggy-Back. This lets the operator 

easily access the latest performance 

data from any location in the world. 

129


Safe 

• Measurement acquisition via 

external sensors (analog and 

digital input ports) 

• Monitoring of inverters and 

PV modules 

• Early detection of faults 

Flexible 

• Connection of energy meters 

(S0-interface) 

• Compatible with 

Sunny Boy Control 

Electrical Connection 

Grid voltage (U AC ) 


Communication 

Inverters (COM1) 

PC (COM 2) 

Relay out 

AUX (COM3) 

Interfaces 

Digital in / out 

Analog in 

NET socket (optional) 

Display 

LC Display 

Operation 



Max. different device types 

Energy values per device 


Sunny Boy Control Plus 

110 V – 240 V 

50 Hz – 60 Hz 

RS485 


2 switching contacts 


8 x in, 8 x out 

8 x in, 2 of those Pt100 

Integrated modem available in 3 versions 

(analog, ISDN, GSM) or Ethernet 

4 x 16 characters 

4 buttons 

50 

10 

1 year 

up to 250 

Housing 



IP40 

–25 °C to +55 °C 



Weight 

234 / 127 / 88 

1750 g 

130


SUNNY BOY CONTROL PLUS 

An Information Plus 

Diverse Configuration Possibilities 

Higher Flexibility 

In addition to the communication with 

the inverters, the Sunny Boy Control 

Plus can evaluate direct measurements 

at the PV generator. Module temperature 

and radiation data: the Sunny 

Boy Control Plus gives the operator 

a high-resolution performance ratio of 

his system. 

Eight analog and eight digital inputs 

are available for the connection of 

nearly any sensor for external measurements. 

With the aid of a menu, 

the inputs can be configured to such 

an extent that almost all types of sensors 

are supported. For temperature 

measurement, two separate Pt100 

interfaces with four-wire connections 

are available. Another six analog inputs 

are freely configurable, and are 

suitable for measurement of solar irradiation, 

for example. The digital ports 

can be used for energy counters. The 

impulses are then internally converted 

to kWh units. 

Depending on the version ordered, 

the third serial interface can, for example, 

also control a PC or a large 

display via RS232 or RS485. 

131

132

133

SMA Service 

Comprehensive Customer Service 

for Satisfied Operators 

Practical service support 

• During installation, start-up, and 

maintenance – by telephone or 

directly on-site 

High facility availability 

• 24-hour replacement service for 

all devices in the Sunny Family 

Earnings security 

• Comprehensive warranty program 

All those who opt for a solar power 

plant are banking on earnings over 

the long term. Long-lasting solar inverters 

with peak efficiencies are not 

all that are required for this. A reliable 

service partner who is flexible 

and competent, and who will be there 

ready with advice and action, is just 

as important. 

SMA offers innovative, cutting-edge 

technology and comprehensive service 

all in one package. Whether it’s 

our SMA Service Line, on-site service, 

comprehensive warranty program, 

or take-back of devices at the end of 

their service life, our flexible services 

are customized to the requirements of 

the specialist trade. 

Expert advice by telephone with 

the SMA Service Line 

The professionals on our Service Line 

support specialist tradesmen during 

installation and start-up of solar power 

plants, provide advice to answer 

technical questions, and give tips for 

installation monitoring. During this 

process, our service employees are 

supported by specially-trained teams 

of experts. 

Plant registration for even faster 

help 

In order to serve our customers faster 

and more purposefully, we offer a 

comfortable solution: a solar power 

plant can be registered with us immediately 

after installation, which 

provides us with all the necessary information 

in the event of a need for 

134

service. By the way: customers do 

not enter into a contract by registering 

their product. 

In Germany and around the 

world – SMA service on-site 

Specialist tradesmen can rely on our 

support. Currently, with 19 service 

support locations in Germany, we 

can quickly be on site if service is required. 

In addition, we also have a 

well-developed international service 

infrastructure in eight additional countries. 

Thus, we are on assignment for 

our customers around the world, from 

on-site diagnosis to device replacement. 

Additionally, we offer competent 

support in the installation and 

maintenance of solar power plants 

– which is a particularly welcome 

service for solar newcomers. 

More security 

with long-term warranty 

SMA products are of the highest quality, 

and come equipped with a standard 

warranty of five years. Additionally, 

we offer an extended warranty, 

with which facility operators can be 

assured that they have a right to free 

repair or a replacement device for an 

additional ten-year period. 

Device replacement 

for the highest earnings security 

If it comes to it, we will keep down 

times as short as possible and offer 

device replacement within 24 hours. 

By the way, if device replacement is 

required, we have a special online 

service in place. And our service technicians 

are glad to help on site, ensuring 

competent and flexible device 

replacement. 

Service contracts 

The appropriate provision of service 

for every requirement. From service 

and maintenance contracts to a complete 

‘all-around worry-free package’ 

inclusive of a service, maintenance 

and technical availability warranty; 

our customers decide on the service 

they want. 

Interested? 

Whether it is for a start-up, service 

work or tips for installation monitoring, 

both customers and specialist tradesmen 

are equally well served with the 

SMA service concept. All service 

plans are available at www.SMA.de. 

Here, you can order or download our 

service brochure free of charge. 

135

136

137

Profitable 

• Active sales support through a 

wide range of professional and 

competitively-priced marketing 

measures 

• Hand-in-Hand marketing profile 

together with the market leader 

SMA as a specialist partner 

• Additional acquisition of new 

customers by naming solar professionals 

on the website for end 

customers www.solar-is-future.com 

Time saving 

• Direct access to the latest product 

information 

• Valuable savings for solar 

professionals both in terms of time 

and cost 

Solar power plants not only need to 

be planned and installed, but also 

sold. In an increasingly competitive 

sector, recommendations alone are 

no longer a sufficient basis for the development 

of new markets. However, 

developing professional marketing for 

products is very time-consuming for a 

specialist business. And time – as everybody 

knows – is limited. 

Giving solar professionals the 

freedom to do what they do best 

This is where the SMA Partner Program 

gets interesting. The Sunny PRO 

Club, SMA‘s partnership program for 

solar professionals, offers its members 

active marketing support in developing 

regional markets. This not only 

saves you time, it also attracts new 

customers. 

Expert marketing support tailored 

to your needs 

All marketing services are tailored 

to meet the specific needs of solar 

professionals. As a member, you will 

receive practical marketing support, 

whether you require customized advertising 

material or need to hire a 

trade show stand or trainer. The naming 

of businesses on our portal for end 

customers www.solar-is-future.com 

is proving particularly popular. The 

search option, which enables customers 

to find solar professionals in their 

area, is an excellent way of raising 

your local profile and attracting new 

customers. 

138

The Sunny PRO Club 

Professional Marketing for Solar Professionals 

The advantage of knowledge 

A partnership that pays 

Interested? 

Despite all the modern information 

technology we have at our disposal, 

human interaction is still the best 

source of knowledge. Members can 

address questions and comments directly 

to the staff using the Club Hotline 

or, alternatively, they can visit 

one of the regular regional forums. 

Sunny PRO Club members also benefit 

from exclusive technology and 

communications seminars organized 

by the SMA Solar Academy. 

The Sunny PRO Club concept is 

based on the principle of give and 

take. Membership not only provides 

solar professionals with marketing solutions 

on very reasonable terms. As 

the world’s leading manufacturer of 

solar inverters, SMA supports Sunny 

PRO Club members as a strong and 

reliable partner. On the one hand, 

your company image benefits from 

the strength of the SMA brand and, 

on the other hand, you help to further 

increase the profile of our products. 

By the way: the Sunny Pro Club concept 

was awarded the 2008 Industry 

Prize by "Initiative Mittelstand". 

It’s easy to become a member of the 

Sunny PRO Club. Simply download 

the registration form at www.Sunny- 

PRO-Club.com, fill it out and send it 

to the Sunny PRO Club service center. 

For an annual fee members receive 

a welcome kit and a selection of attractive 

marketing services, as well as 

being registered on our online solar 

professionals search facility. For more 

information on objectives and services, 

please visit www.Sunny-PRO- 

Club.com. 

The free Sunny PRO Club brochure 

can be ordered at 

+49 561 9522-4774. 

139

140

141

Solar Academy 

Practical knowledge for the solar contractor 

Comprehensive 

• Sharing the latest technical 

knowledge on photovoltaics and 

SMA inverter technology 

• Wide range of courses for 

beginners and experts 

• Courses also available in English 

Practical 

• Specially trained expert team 

• Close communication with developers 

and other contractors 

Easy to Use 

• Company tour and lunch 

• Easy to register online and sign up 

for a seminar reminder 

SMA is the world’s leading manufacturer 

of solar inverters and a reliable 

partner for specialized companies. 

SMA continues to set standards with 

its technological innovations, ensuring 

maximum yields and fast amortization 

of solar power systems. 

Our Expertise for Successful Solar 

Specialists 

The SMA Solar Academy allows us to 

share the knowledge we have gained 

over 25 years in photovoltaic system 

technology. Our seminars, tailored to 

the needs of solar specialists, provide 

extensive training in solar technology. 

Whether for beginners or professionals, 

we lay the foundations for professional 

photovoltaics system planning, 

installation and monitoring. Simple, 

easy to understand and practical. 

Solar Academy for an 

Even Greater Market Success 

Photovoltaics is becoming an increasingly 

attractive option for supplying 

power - thanks to new, innovative inverter 

concepts, higher efficiency and 

better performance of the entire solar 

power system. Conservative estimates 

predict sales to increase around 30 % 

annually, giving this technology excellent 

future market potential. But in 

order to benefit, you must understand 

solar technology and know how to 

implement it profitably. Our seminars 

therefore aim to provide active and 

practical support to specialists. 

142

Training Schedule 

Our seminars are organized according 

to different topics and levels of 

experience. We offer the perfect 

seminar for all participants, who can 

combine seminars to create their own 

custom training program. Participants 

also have the opportunity to get to 

know our company during a company 

tour and group lunch. 

The New Generation of 

SUNNY BOY 

Even more communicative, powerful 

and user-friendly: the new Sunny Boy 

generation can do so much that we 

have dedicated an entire seminar to 

it. Specialists learn everything they 

need to know about its extensive 

features. 

Sunny Family I/II 

This seminar provides an introduction 

to the fundamentals of photovoltaics 

and solar inverter technology, and 

gives an overview of SMA’s PV system 

technology. Here, the emphasis 

is on system design under demanding 

framework conditions. 

Communication I/II/III/IV 

Our beginning and advanced communication 

seminars cover system monitoring 

options for both roof-mounted 

systems and solar power plants in the 

megawatt range. 

Sunny Central I/II 

This seminar covers concepts relating 

to SMA central inverters. Participants 

work through practical examples of 

system planning and necessary maintenance. 

Sunny Island I/II 

This two-day seminar covers the operating 

principles of AC-coupled systems 

based on the Sunny Island battery 

inverter. Here, the emphasis is on 

system design and battery manage- 

ment. In the Sunny Island test center, 

we have the possibility of carrying out 

commissioning work. 

Sunny User-Forum 

The Sunny User Forum helps participants 

become better acquainted with 

SMA. It gives an overview of our range 

of products and provides plenty of 

room for experienced users and those 

new to PV to share their experience. 

Interested? 

Participating in SMA Solar Academy 

seminars is easy! Just select the required 

seminar at www.SMA.de/Solaracademy 

and register by phone 

under +49 (0)561 9522 4884 or 

send an e-mail to Solaracademy@ 

SMA.de. Registration is binding. We 

look forward to seeing you at one of 

our specialist seminars soon. 

143

144

145

Central- or 

Decentralized? 

SMA offers the perfect inverter concept 

for every PV system 

Author: 

Joachim Laschinski 

SMA Solar Technology AG 

Sonnenallee 1 

34266 Niestetal, Germany 

E-Mail: Joachim.Laschinski@SMA.de 

SMA is the only manufacturer to offer 

the perfect solar inverter for every 

system size and power class. This includes 

making sure our customers can 

choose between different concepts. 

While a central inverter concept may 

clearly be the best solution for one PV 

system, conditions in another system, 

even one similar in size, may require 

a decentralized concept. 

This catalog includes solar inverters 

ranging from 1 kWp to above 

1 MWp. Since the specific price always 

drops as the power output increases, 

selecting the largest inverters 

possible is often the most economical 

solution when setting up a PV system. 

These pure investment costs can become 

less important than other types 

of costs when you examine the total 

cost of ownership (TCO). You must 

therefore always account for installation 

and system operating costs in 

particular when deciding whether to 

opt for a centralized or decentralized 

system structure. Under certain conditions, 

decentralized system design 

has been shown to offer a range of 

advantages over centralized design. 

A few of the important aspects typical 

of the power class above 100 kWp 

are noted in the following examples. 

146

Decentralized system design: 

precise and efficient 

If a PV system is oversized or undersized, 

this can have just as much of 

an effect on the system’s energy yield 

as the inverter efficiency. Small inverter 

units enable the system power 

to be set to a specific target. When 

combined with high efficiency, lowerpower 

devices are often a better alternative 

to a large central device. 

Advantageous 

in mixed system structures 

A central inverter like the Sunny Central 

only works effectively when PV 

generators are all of the same type. 

Decentralized concepts, such as those 

using Sunny Mini Centrals, are a better 

choice when generator units differ 

and should thus be operated separately. 

This can be caused by using 

mismatched PV modules or modules 

with a higher manufacturing tolerance, 

sub-generators that are oriented 

differently, or tracking sub-generators. 

Ambient conditions and 

operating costs 

Installing smaller and lighter devices 

can be less expensive than a large 

heavy cement station if ground load 

capacity or site accessibility is limited. 

Opting for decentralized inverter units 

greatly simplifies cooling even at high 

ambient temperatures. 

System monitoring using one central 

inverter is easy to set up and is covered 

by standard software. Maintenance 

in decentralized systems is 

much easier than in centralized systems, 

however, since replacing entire 

inverters is much less complicated and 

expensive. 

Accounting for all costs 

These examples show that you must 

account for all costs when choosing 

the most economical solution and 

evaluate them when planning the 

specifics of your solution. Boundary 

conditions can mean that a system 

that is profitable at one site may have 

trouble paying for itself at another. It 

is therefore wise to take advantage of 

the technical consultation and experience 

of the SMA team when determining 

the optimum system structure 

and components for your project. 

147

The Optimal 

PV System Design 

Author: 



Sonnenallee 1 



We cannot say much about the optimal 

design of a utility interactive PV 

plant – as the title promises – since 

the optimum does not exist in this absolute 

form. However, designs maximizing 

energy yield and/or minimizing 

amortization time are certainly 

available. 

When designing a plant the operating 

and ambient conditions of the 

PV generator and the inverter must 

be checked in order to verify if they 

deviate from the assumed standard 

conditions. If this is the case the indicated 

guidelines must be modified 

correspondingly. 

This list summarizes the essential technical 

principles and correlations to 

be considered for a correct design. It 

also provides the planner with guidelines 

and rules of thumb for designing 

a supplementary grid feeding standard 

PV plant. 

Fig. 1: Characteristics of a PV generator 

over an entire year (Europe) and the according 

characteristic points 

148

1. Considering the Inverter’s 

Rating 

First of all the voltage of the generator 

must match the inverter. The limits 

are defined with the MPP-voltage at 

the highest cell temperature (standard 

70 °C) and the open circuit voltage 

at the lowest cell temperature (standard 

–10 °C). The maximum system 

voltage of the PV modules can also 

limit the open circuit voltage of the 

generator. 

2. Choosing between Optimizing 

the Efficiency or Optimizing 

the Yield 

The power ratio (relation between 

maximum input power compared with 

the peak power of the PV generator) 

gives information concerning over- or 

undersizing of the inverter. In order 

to be capable to process the entire 

power coming from the PV generator 

in any given situation the inverter 

should be slightly oversized (power 

ratio 110 %). The economically optimal 

ratio, however, is given with 

a slight undersizing of the inverter. 

The economically optimal ratio in 

Germany is given with a power ratio 

of 90 to 100 %. With respect to the 

fact that enegy yield and economic 

performance depend on the financial 

investment in the first place, this value 

is highly dependent on economic conditions 

influencing the system. 

3. Using the Inverter’s Best 

Efficiency 

For every inverter there is a voltage 

at which there is maximum conversion 

efficiency. What this voltage is 

depends on the type of circuit. The 

exact voltage is listed in the device‘s 

data sheet. If possible, the modules‘ 

MPP voltage at NOCT (Normal Operation 

Cell Temperature) should be 

near this voltage. 

149

Sunny Design 

System Design Made Easy 

Authors: 



Sonnenallee 1 



Claudia Fenzl 


Sonnenallee 1 


E-Mail: Claudia.Fenzl@SMA.de 

Simple 

• Optimal design for grid-connected 

PV systems 

• Goal-oriented suggestions for 

optimization of the system 

• Free download 

at the SMA homepage 

Comprehensive 

• Database with standard PV modules 

available on the market 

• Use of real, high-resolution 

meteorological data 

• Worldwide location selection 

• Automatic computation of the 

cable lengths and cable cross 

sections 

• Energy analysis over an 

operating year. 

SMA provides a tool to make system 

design as easy as possible – it follows 

the routine tasks described in the 

chapter "The Optimal PV System Design". 

Sunny Design makes the planning 

and design of grid connected 

systems easy, safe and comfortable, 

as it includes all relevant data from the 

SMA inverters and the modules available 

on the market. Sunny Design 

is an easy to use menu-driven program 

that leads the system planner 

through the design process. This saves 

time and lets the user check out different 

design possibilities without complicated 

computations. Sunny Design 

computes all relevant values automatically 

and delivers a comprehensive 

result. 

150

Operating states that could be critical 

are reliably detected and indicated. 

This ensures that the plant designer is 

informed of deviations from the standard 

design. However, while such 

information does not mean that the 

plant design is definitely incorrect, it 

should give enough of a reason to 

verify whether this operating state 

(e.g., generator voltage too low) is of 

any importance for the current plant. 

After all, the skill of the plant designer 

is his ability to estimate the investment 

costs and the effects of the most important 

parameters on the yield in order 

to provide the customer with a customtailored 

plant. 

figuration possibilities. But aside from 

the technical checking itself, the yield 

differences of the different designs can 

be determined. The best plant design 

cannot only be found, it also can be 

evaluated under economic aspects. 

The technical evaluation of the plant 

design can then be subsequently exported 

to an easy-to-understand result 

sheet with individual layout. A printout 

or a PDF of this sheet is then the ideal 

supplement to a PV-plant quotation. 

System Requirements 


Windows 98SE 

Windows ME 

Windows NT 4.0 (Servicepack 6.0a) 

Windows 2000 

Windows XP 


Internet Explorer version 5.01 and later 

Hardware (minimum requirements) 

PIII 800 MHz 

128 MB RAM 

250 MB (hard disk) 

1024 x 768 pixels / 256 colors 

Additionally, realistic operation is 

evaluated over a calendar year on 

the basis of the integrated meteorological 

database. A yield estimate 

nevertheless cannot be expected from 

Sunny Design. For this one still needs 

simulation software with complex con- 

Use of real, high-resolution 

meteorological data 

Database with standard 

PV modules available 

ob the market 

Goal-oriented 

suggestions for 

optimization of 

the system 

Worldwide 

location selection 

Automatic computation 

of the cable lengths 

and cable cross sections 

Individually definable profitability 

report for integration in 

quotations 

Database with all 

SMA inverters 

151

OptiCool 

Intelligent temperature management 

Author: 

Heiko Stieber 


Sonnenallee 1 


E-Mail: Heiko.Stieber@SMA.de 

The trend towards increased system 

outputs under unchanged installation 

conditions demands effective measures 

for temperature compensation 

inside the inverter. To this end, a variety 

of systems are used. Passive heat 

abstraction has the disadvantage 

that connection to a correspondingly 

large heat sink is often insufficient, 

and therefore the effect this has on 

the heat balance is relatively little. On 

the other hand, active ventilation units 

only function with a corresponding 

opening in the housing, which leads 

to soiling of sensitive electronic components 

due to foreign objects and 

moisture. Thereby, the inverter loses 

the protection rating needed for outdoor 

installation. 

With the patented dual-chamber cooling 

system OptiCool, SMA now offers 

a technical solution which combines 

passive and active cooling, and can 

rightly be described as “intelligent 

temperature management”. 

For maximum improvement of effectiveness, 

the inverter’s complete 

housing becomes part of the cooling 

system. It no longer serves merely as 

accommodation and protection of 

the internal components, but also as 

a cool air and heat distributor. 

152

How OptiCool functions in the Sunny Boy 3800 

The actual heat sink, as the central 

component of passive heat abstraction, 

is positioned inside the housing 

in such a way that two chambers are 

formed. The front chamber containing 

the electronic components is especially 

sealed and thus protected against 

infiltration by water, dust or dirt. In addition, 

the heat sink, functioning as a 

partition wall, provides enough space 

for the installation of the heat-producing 

power electronics. 

The rear enclosure chamber contains 

the components that develop heat, 

depending on their function, such as 

chokes and transformers, which themselves 

are each especially sealed 

and are immune against external influences. 

An active cooling unit is installed in 

the bottom part of the second compartment 

which has been specially 

designed for this purpose. Depending 

on the temperature of the power 

transistors and the coils this cooling 

unit is automatically activated with a 

variable speed for an optimum temperature 

within the enclosure. 

The air current provided by the fan is 

particularly well channeled via a current 

tunnel and expels the waste heat 

both from the heat sink and the other 

components in this area. 

OptiCool makes for low component 

temperatures throughout the inverter. 

This leads to high levels of reliability 

and excellent overload behavior, 

both of which have considerable impact 

on the economic viability of the 

inverter and therefore on the PV system 

as a whole. 

This use of a dual-chamber system with 

a waterproof area for the electronics 

makes it possible to install the inverter 

not only indoors, but also outdoors, 

near the PV generator. 

How OptiCool functions in the Sunny Mini Central 

153

Electronic Solar Switch 

The First Device-integrated DC Circuit Breaker 

for Photovoltaic Inverters 

Author: 

Stefan Buchhold 


Sonnenallee 1 


E-Mail: Stefan.Buchhold@SMA.de 

Added Safety 

Working on an electrical device requires 

that it be disconnected from the 

energy supply; naturally, this also applies 

to the inverter. The inverter is the 

connecting component between the 

house connection (AC voltage grid) 

on one side, and the DC source (PV 

generator) on the other side. In order 

to avoid the dangers which arise if 

an arc occurs, a particular sequence 

must be followed during disconnection: 

the inverter must first be disconnected 

from the AC voltage grid before 

it is disconnected from the PV 

generator. Although this procedure is 

sufficiently well known, cases of improper 

handling do occasionally occur. 

Therefore, a DC circuit breaker, 

as an additional disconnection device 

between the PV generator and the in- 

verter, is an obligatory prerequisite 

stipulated by DIN VDE 0100-712, the 

installation standard for PV systems in 

Germany. 

The technical solutions which are currently 

available on the market meet 

the stipulated criteria only in part. The 

use of an external circuit breaker, for 

example, entails considerable investment 

and installation costs. The use of 

an integrated load relay significantly 

reduces the efficiency of the entire solar 

power system due to the continuously 

high control power. 

The objective of the developers at 

SMA was to develop a disconnection 

device which is easy to operate, 

contains a reliable automatic switch, 

and thus has no influence on the efficiency 

of the PV system. A multitude of 

154

approaches were tested for potential, 

and discarded, until gradually a completely 

new concept took shape. 


The ESS consists of a grip handle 

which completely covers all generator 

plug connections, and thus prevents 

their operation under load. To 

disconnect the generator from the inverter, 

the complete grip handle must 

first be pulled off. Simultaneously, 

the removal of the grip handle interrupts 

the current flow by means of an 

integrated jumper, and activates an 

electronic switch which securely prevents 

arcing. This electronic function 

also works under load, and thus offers 

maximum protection if there are faulty 

devices or if an improper procedure 

is followed during disconnection of 

the electrical components in a solar 

power system. Only after the handle 

removal are the plug connections 

(now in zero-current state) accessible, 

and they can be disconnected without 

danger. The ESS works passively 

during normal grid feeding, incurring 

absolutely no losses, and thus has no 

influence on the efficiency of the inverter. 

The ESS is thus the only DC circuit 

breaker which guarantees the further 

use of the reliable PV plug connectors 

and a high standard of protection 

against accidental contact in generator 

cabling, in accordance with protection 

class II. There is therefore 

no need for any changes to today’s 

standard system installation. The installation 

engineer simply needs to 

attach the grip handle with its integrated 

jumper before commissioning 

the system. Therefore, this electronic 

switch, developed and patented by 

SMA, brings added safety to all work 

carried out on the solar power system 

which exceeds the standard requirements. 

Remove the ESS handle Remove all PV plugs The Sunny Boy is isolated on the 

DC side 

155

H5-Topology 

New Inverter Circuit 

Allows Over 98 % Efficiency 

Author: 

Catrin Nähr 


Sonnenallee 1 


E-Mail: Catrin.Naehr@SMA.de 

In the same way that fuel consumption 

is a decisive factor in buying a car, solar 

power system operators will select 

solar inverters according to the lowest 

own consumption and best efficiency. 

A modern inverter consumes between 

4 and 8 % of the energy that it converts 

into alternating current from the direct 

current produced by the solar modules. 

This corresponds to an efficiency 

of 92 to 96 %. Increasing this value 

is a considerable technological challenge 

that cannot be achieved by only 

optimizing the component properties. 

In order to considerably lower energy 

loss and optimize feed-in efficiency, 

the SMA development team has created 

the H5 topology, a priceless 

switching concept using a completely 

new inverter bridge. Thus for the first 

time, solar inverters can achieve an 

efficiency of over 98 %. 

The basic function of an inverter 

An inverter's basic function is performed 

by the so-called H-bridge. 

It usually consists of four electronic 

switches which regulate the current 

flow between input and output. 

Direct current generated by solar 

modules is stored in a large capacitor 

first, in the input terminal of the 

inverter. Thus, the solar current can 

continually flow with maximum power, 

and is independent of the switching 

operations in the inverter. Due to 

the permanent opening and closing of 

the electronic switches, the capacitor 

is repeatedly discharged little by little; 

it could even be said that the direct 

current is "chopped up". This causes 

the inverter to oscillate perpetually 

between two states: feeding and not 

feeding. With a choke as buffer at the 

156

inverter's output, this pulsating direct 

current is converted to sinusoidal alternating 

current, and a continuous power 

output into the local grid is achieved. 

Record: 98 % Efficiency 

Most inverters on the market function 

in this manner. The H5 topology intervenes 

in this process. This current 

flows in the reverse direction: from the 

inverter output terminal to the capacitor. 

In order to prevent this oscillation 

of the feed current, and to reduce the 

conversion losses which this entails, 

the SMA development team devised a 

new switching concept – the H5 topology: 

a new pulse rate for the electronic 

switches, as well as integration of a 

fifth switch, prevents the return flow of 

current to the input capacitor at the moment 

of free flow. The losses which the 

oscillation of current previously caused 

can thus be significantly reduced. 

Overall, the fifth switch halves the 

conversion losses, reducing them to 

under 2 %. Thus, the inverters based 

on this technology achieve an efficiency 

of over 98 %, a new benchmark. 

This allows the system operators to really 

cash in: their PV system can feed 

more solar power into the public grid, 

and thus ensures higher profit from the 

legally stipulated feed-in tariff. 

Sunny Mini Central 11000TL 

Highest efficiency, lowest specific 

price, shortest payback time 

Further information is available on 

the Internet: www.SMA.de 

157

SMA grid guard 

The Grid Interface 

for the Worldwide Usage of Sunny Boys 

Author: 



Sonnenallee 1 



The majority of photovoltaic systems in 

Germany feed the electricity gained 

from solar energy into the mains grid 

by means of an inverter. The grid operator 

ensures compliance with the 

predefined threshold values for voltage 

and frequency, and ensures that 

the power grid can be used effectively 

and serviced without difficulty in the 

event of a fault. 

Maximum Protection 

for Personnel and Consumers 

For all work performed on the grid, it is 

necessary that all energy sources, including 

grid-feeding inverters, can be 

disconnected from the power grid at 

any time. In the case of inverters, this 

disconnection preferably takes place 

by means of an automatic grid disconnection 

unit, as described since 1999 

by the E DIN VDE 0126 standard as 

“MSD”. The automatic disconnection 

unit serves as a safety interface 

between the generator system and 

the low-voltage grid. It prevents unintentional 

feeding from a decentralized 

generator system into a sub-grid 

which is disconnected from the rest of 

the distribution grid (stand-alone grid 

operation). Thus, it provides maxi- 

158

Why an Automatic Grid Disconnection Unit? 

mum protection against inadmissible 

voltages and frequencies for staff during 

maintenance work, and also for 

consumers. 

With MSD (Mains monitoring with 

allocated Switching Devices), developed 

in 1994 by cooperating trade 

associations and utility operators, a 

new safety standard was defined. 

Active Mains Monitoring 

In this active form of grid monitoring, 

the automatic disconnection unit 

consists of two MSD devices which 

are independent of each other and 

connected in series. Each of these 

devices continually monitors the quality 

of the connected grid by checking 

the voltage, frequency and impedance. 

Here, fail-safe operation must 

be guaranteed, so that regular functionality 

tests are not necessary. Thus, 

MSD is a complete safety concept, 

and much more than just grid impedance 

monitoring, which it is often described 

as. SMA was one of the first 

manufacturers to implement this new 

safety standard, and since as early as 

1995, all Sunny Boy inverters have 

been delivered with MSD as standard. 

In the meantime the requirements for 

an MSD are defined in the German 

standard VDE 0126-1-1, while the 10 

years‘ experience with this topic was 

taken into account. 

Today utility operators in other 

countries refer to these requirements, 

modifying them to fit local 

grid conditions or extending them 

with additional regulations. The grid 

monitoring SMA grid guard must 

therefore do much more compared 

with a standard grid monitoring system: 

SMA grid guard is not only a 

simple MSD – as the most advanced 

system of its kind it can be adapted 

further in order to operate any given 

utility. 

Very high 

inverter operation times 

The monitoring of the grid parameters 

guarantees a very high connection 

time of the inverters to the grid. Furthermore, 

the new software includes 

a self-learning procedure to enable it 

to adapt to even the most difficult grid 

conditions, which guarantees maximum 

reliability of the solar power system, 

as regularly recurring grid events 

can be identified as such beyond any 

doubt. 

Approval from the Industrial 

Trade Association 

The trouble-free certification of SMA 

grid guard, and the approval for higher 

power classes from the German 

Professional Association for Precision 

Engineering and Electro Technology 

underscores that SMA has taken account 

of safety aspects comprehensively. 

SMA grid guard is available in the 

various Sunny Boy and Sunny Mini 

Central inverter models. 

159

PV System Technology 

State of the Art Developments and Trends 

in Remote Electrification 

Authors: 

Prof. Dr.- Ing. Werner Kleinkauf 

Institut für Elektrische 

Energietechnik (IEE-EVS) 

Universität Kassel 

Wilhelmshöher Allee 73 

34121 Kassel, Germany 

E-Mail: kleinkauf@uni-kassel.de 

Günther Cramer 


Sonnenallee 1 


E-Mail: Guenther.Cramer@SMA.de 

The energy supply problems worldwide 

are not only due to damage 

inflicted on the climate and the environment, 

but are also due to increasing 

consumption, and the ever-more 

apparent scarcity of fossil resources. 

The globally increasing consumption, 

especially of electrical energy, and 

tendencies of deregulation, are entailing 

serious changes in the field of supply 

grids, and also in the modernization 

of power station fleets. Effects on 

the availability and quality of energy 

are grave consequences. Solutions 

are called for that are technically feasible 

as well as in compliance with the 

necessary sustainability. 

The use of renewable energy sources 

during the past decade has shown 

that they can make a significant 

contribution towards solving these 

problems – not only due to ecological 

criteria, but also due to their decentralized 

structure. This article uses 

the example of photovoltaic system 

technology to show the possibilities of 

integration into existing and yet-to-beconstructed 

supply systems which are 

also suitable for supplying electricity 

to remote areas. 

160

1. Photovoltaics 

in Decentralized Power Systems – The Concept 

Until now, electricity consumers have 

been supplied predominantly by remote 

central power stations through 

long transmission and distribution 

grids. These utility grids provide the 

end-user with AC power of a relatively 

fixed frequency and voltage (e.g. 

230/400 V of 50 Hz). Conceptually, 

these supply infrastructures of central 

power generation can be complemented 

by decentralized generation 

systems for combined heat and power 

production. These decentralized 

power supply systems are characterized 

by relatively small generation 

units located close to the consumers 

and they effectively use the locally 

available energy resources. Consequently, 

generation and consumption 

processes take place locally. Thus, usability 

of electrical and heat energy 

and the exploitation of local energy 

potentials (especially renewable energies 

such as solar, wind, biomass 

and hydro) are enhanced. Additionally, 

energy losses which occur due 

to voltage level conversion and long 

power transmission and distribution 

lines are minimized.Accordingly, the 

overall efficiency is increased, the 

economic situation of the region is improved 

and the conditions of sustainability 

are met. 

The decentralized nature of renewable 

energies perfectly matches this 

decentralized supply strategy. Depending 

on regional conditions, the 

decentralization concept can be fulfilled 

either by connecting a PV power 

plant (in the kW to MW range) to 

suitable points on the utility grids or 

by installing stand-alone systems and 

island grids in order to supply off-grid 

161

consumers. Accordingly, the decentralized 

PV system configurations used 

to supply AC power can be classified 

as follows: 

1. PV in utility grids 

• Only PV 

• PV with battery storage 

2. PV in off-grid applications 

• PV battery systems 

• PV hybrid systems 

All these supply configurations are 

shown in Fig. 1 and can be modularly 

structured. The grid-connected structure 

is the dominant PV-application 

area in industrialized countries such 

as Europe, Japan and the USA. If the 

PV plant is equipped with the suitable 

power conditioning unit it can supply 

power to the utility grid, as shown on 

the right hand side of Fig. 1. Integrating 

the PV-plant with storage media 

(usually a battery) improves the energy 

supply reliability of weak grids 

(back-up function). In PV applications 

for island grids used to supply remote 

and off-grid consumers, the PV plant 

is integrated with a battery storage in 

order to ensure the desired availabil- 

ity. For larger-scale applications the 

PV plant can also be combined with 

other energy converters (e.g., wind 

energy converters, diesel generators, 

etc.) and storage units to form hybrid 

power supply systems, as shown in 

Fig. 1. 

Until today lead-acid batteries with 

their different types are still the most 

common storage medium for PV applications 

in off-grid systems. With 

respect to the costs (about 100 euro/kWh) 

the battery is only used for 

short term and medium term power 

storage. Additionally, auxiliary generators, 

driven by diesel engines or 

micro-turbines, are used as back-up 

units in order to improve the supply 

security of these PV stand-alone systems. 

In the future, fuel cells will be of 

increasing interest as back-up units. 

Fig. 1: schematic overview of the modular and AC-compatible hybrid system technology with standardized modules, including the possibilities 

of supplying single consumers or forming island grids and feeding into the utility grid 

162

2. Inverter Technologies 

for Grid Connected Systems 

PV is mainly used in grid connected 

applications. There are a wide range 

of conceptual system approaches for 

such systems. However, one thing 

they all have in common is that the PV 

generator is connected directly to the 

grid by means of an inverter, where 

it feeds in solar energy. Power conditioning 

units (inverters) play a key role 

in the energy efficiency and reliability 

of these PV systems. Therefore, the 

PV module requires a power conditioning 

component (Maximum Power 

Point Tracker) which can optimize the 

delivered power based on the operation 

conditions. The DC power generated 

by PV modules is inverted into 

alternating current (AC) of the desired 

voltage and frequency (e.g. 230 V 

and 50 Hz). Furthermore, the inverters 

must monitor the grid reliably with 

regard to disturbances, and must interrupt 

grid feeding in the event of a 

grid fault. 

The PV plant is connected to the grid 

via DC/AC inverters of several technological 

concepts. The basic inverter 

technologies for PV grid-tied structures 

are classified as follows: 

to the dependence of the power generation 

on one single component. The 

failure of the central inverter results in 

the shutdown of the whole plant. Distributing 

the power to several smaller 

central inverters (with 10 kW power 

each) is therefore an attractive alternative 

compared with central inverter 

solutions, especially in the range up 

to 100 kW. 

String Inverters 

Just as with central inverters, the PV 

array is divided into strings. Each PV 

string is assigned to a designated inverter, 

the so-called "string inverter" 

(see figure 2 b). Each string operates 

at its individual Maximum Power Point 

(MPP). The string technology minimizes 

mismatching, reduces losses 

resulting from shading and avoids 

losses due to the string-diodes and 

large scale DC-cabling. These superior 

technical characteristics lead to 

a reduction in the system cost and enhance 

its yield and reliability. "Sunny 

Boy" string inverters were the first to 

set a standard in PV-system technology 

for utility-interactive systems. 

Central Inverters 

In a large PV system (> 10kW) the 

large number of PV modules are connected 

to strings, while these strings 

are connected in parallel via string 

diodes. The PV generator structured 

like this is then connected to the DC 

input of one central inverter (refer to 

Fig. 2a). Central inverters are characterized 

by high efficiency and lowest 

specific costs. However, the energy 

yield of the PV plant decreases due 

to module mismatching and partial 

shading conditions. Moreover, the 

reliability of the plant is limited due 

163

Multi-String Inverters 

The Multi-String allows the connection 

and the MPP operation of several 

strings via DC/DC converters on one 

common bridge and provides a compact 

and price-effective solution while 

still offering the advantages of the 

string technology. PV systems consisting 

of strings with different geographical 

orientation (south, west, east), and 

the resulting different time period during 

which the power is produced, can 

be operated with optimal efficiency. 

Multi-String inverters are used in PV 

systems in the medium power range 

between 3 and 10 kW. 

a complex cabling on the AC side, 

due to the fact that each module of 

the system must be connected to the 

230 V grid. With respect to the greatly 

increased number of required module 

integrated inverters, the complexity of 

the circuit increases drastically. This 

concept is normally only used in PV 

systems with less power, from 50 up 

to 400 W. 

These three types of inverters are available 

on the market. The choice of the 

most appropriate inverter depends on 

the corresponding application. 

Module-integrated Inverters 

One inverter is used for each module, 

as shown in Fig. 2c. This topology 

optimizes the adaptability of 

the inverter to the PV characteristics, 

since each module has its own MPP 

tracker. The efficiency of module integrated 

inverters cannot be compared 

with the efficiency of string-inverters. 

Module integrated inverters require 

a) b) c) 

Fig. 2: schematic diagram of a PV plant connected with three different topologies: 

a) central inverter b) string inverter c) module-integrated inverter 

164

3. PV Systems 

for Off-grid and Island Grid Applications 

Stand-alone and island grid systems 

are those PV power generation plants 

which are not connected to the utility 

grids. The island grid systems can 

be classified according to the type of 

voltage (DC or AC) they are coupled 

with. An overview of the three different 

system designs is given below: 

1. Solar-Home-Systems (SHS) 

All consumers and generators are 

coupled on the DC voltage level exclusively, 

as shown in Fig. 4 . This 

technology is commonly used nowadays 

for PV systems in the low power 

range. Today, several hundred thousand 

SHSs have been installed mainly 

in rural areas of Asia, Africa and 

South America. Supported by an additional 

small inverter, the consumer 

can use the DC system to supply any 

standard AC load. 

2. Small AC local grid with 

DC coupled components 

This technology emerged due to the 

need to supply (medium power) AC 

loads with DC power sources and be 

able to charge the battery on the DC 

side with AC generators, like diesel 

gensets, as shown in Fig. 5. Such a 

configuration is used to supply remote 

or rural consumers with higher energy 

demands than the SHS (e.g., cottages, 

small workshops and farms). The 

common power range is between 1 

and 5 kW and the DC voltage range 

is between 12 and 48 V. 

3. Modularly coupled 

AC systems 

More flexible systems with a consequently 

modular structure systems are 

achieved via the coupling all consumers 

and generators on the AC side, 

as shown in Fig. 6. Nowadays, this 

technology is commonly used in the 

power range above several kWs. According 

to the application type and 

energy resources availability, different 

renewable and conventional energy 

converters can also be integrated 

in the system to form a hybrid energy 

system. Since all converters, storage 

and back-up units of the decentralized 

systems can generate AC power of 

grid-compatible characteristics, they 

are also suitable to be connected to 

the utility grid. Moreover, the systems 

can be expanded by integrating further 

island grid systems in order to 

comply with the growing demand in 

energy. Such structures are used to 

supply any electrical consumer, especially 

rural villages of developing and 

threshold countries where electricity, 

water pumping and water disinfection 

are basic needs. 

This type of PV application has a 

huge market potential, especially in 

developing and newly industrializing 

countries which lack appropriate conditions 

for utility grid extension. The 

power range of these island grid systems 

varies between 3 – 100 kW. 

As mentioned above, the modular 

system has come up with very many 

advantages in simplifying the system 

engineering (design, installation, expansion 

and compatibility) and consequently 

minimizes the specific system 

cost. 

Fig. 4: solar home system with the possibility of AC generation 

165

The structure of such supply systems 

requires, in addition to the power conditioning 

equipment, a control and 

supervision unit which is responsible 

for implementing a specific operation 

control strategy and for securing the 

grid and system components. In small 

and medium power systems (3 – 30 

kW) this control unit is often integrated 

into the key component (bi-directional 

battery inverter) which simplifies system 

operation and decreases the investment 

costs. 

Fig. 5: small AC-power supply system with DC-coupled components 

Fig. 7 shows an electrification strategy 

based on the modular AC-coupled PV 

hybrid system concept. The necessary 

expansion strategies are illustrated on 

the next page: 

1. Starting situation 

(no electricity supply is available) 

2. Small PV/battery system 

(AC coupling) 

3. Larger PV/battery system 

(AC coupling) 

4. Integrating diesel generator 

set to form a hybrid system 

5. Expanding the supply system by 

using distributed PV systems and 

a wind turbine (all AC-coupled) 

6. Connection of further villages 

and grid extension 

Fig. 6: Expandable, modularly structured hybrid plant with AC-coupled components 

166

Betrieb 

Operation 

Erdschlus 

EarthFault 

Photovoltaik-Stringwechselrichte 

Photovoltaicstringinver ter 

Störung 

Failure 

SWR 3 0 

SWR 3 0 

SWR 3 0 

SWR 3 0 

SWR 3 0 

Photovoltaik-Stringwechselrichter 

Photovoltaic stringinverter 

Photovoltaik-Stringwechselrichte Photovoltaic stringinverter 




Photovoltaic string inverter 

Betrieb 

Operation 

Erdschlu s 

Earth Fault 

Stˆ rung 

Failure 

Betrieb 

Operation 

Erdschlu s 

EarthFault 

Stˆrung 

Failure 

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Erdsch 

EarthFaul 

lu s 

tovoltaik-Stringwe chselr ichter Störung 


Failure 

SWR 3 0 

Betrieb 

Operation 

Erdschlus 

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Photovoltaik-S tringwe chselr ichter Störung 

Photovoltaicstringinverter 

Failu re 

SWR 3 0 

Betrieb 

Operation 

Erdschlu s 

EarthFault 

Stˆrung 

Failure 

Betrieb 

Operation 

Erdschlu s 

Earth Fault 

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Failure 

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Erdschlus 

EarthFault 

Pho 

Störung 

Photovoltaicstringinve 

tovoltaik-Stringwec hselrichter rter 

Failure 

SWR 3 0 

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ovoltaic stringinverter 

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SWR 3 0 

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Erdschlus 

Ear th Fau 


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Fail ure 

SWR 3 0 

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Operation 

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PhotovoltaiḵStringwechsel 


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Failure 

SWR 3 0 

SWR 3 0 

SWR 3 0 

SWR 3 0 

SWR 3 0 

SWR 3 0 



SWR 3 0 



Photovoltaik-Stringwechselrichte Photovoltaic stringinverter 


Photovoltaic stringinverte r 





Betrieb 

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Erdschlu s 

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Stˆ rung 

Failure 

1 2 

3 4 

5 

6 

Fig. 7: AC-coupled hybrid system growing with increasing electricity demand 

From the economic point of view, 

small off-grid PV systems (with battery 

storage) in the kW range are definitely 

more cost-effective than systems 

using solely diesel generators. Even 

larger PV hybrid systems (5–100 kW) 

using diesel generator sets only to 

avoid large long-term battery storage 

can operate at lower cost than purely 

diesel-powered systems. These costs 

can be attributed to the high maintenance 

costs, short service life and 

very low partial load efficiency of the 

diesel generator set. As a comparison: 

1 kWh generated by diesel generator 

sets can cost 0.4 – 1.0 Euro. 

167

4. PV Power Systems – The Next Generation 

Modern decentralized power supply 

structures are expected to include several 

types of grids that operate parallel 

to each other and communicate with 

service centers for control, supervision 

and remote maintenance purposes. 

Fig. 9 shows how decentralized PV 

power systems will evolve to include: 

• local (e.g., supply of single loads 

with a stand-alone system 

• regional (e.g., supply of public 

facilities, businesses etc. with 

off-grid systems 

and 

• trans-regional 

(coupling to utility grids) 

These types of grids form supply structures 

which can be expanded step 

by step as the demand for electricity 

increases. A broad expansion of the 

decentralized electrification would 

automatically lead to the interconnection 

of local grids to form regional or 

trans-regional grids. 

In such decentralized structures, communication 

is a key issue for reliability 

and cost-effective maintenance. In 

addition to the powerline coupling 

of the different system components 

and plants, another communication 

structure for control and supervision 

purposes is an essential feature for decentralized 

power supply structures. 

Each structure has to be equipped 

with the suitable communication technology, 

as shown by the dotted line in 

Fig. 9. Thus, the use of modern communication 

technologies also influences 

the design of supply components 

and entire systems. 

Such decentralized power structures 

are anticipated to represent the future 

trend towards sustainable energy 

generation and to be the most effective 

model for remote and rural areas. 

Moreover, the trend towards decentralized 

power structures is also starting 

now in industrialized countries. 

Price reduction, as shown in Fig. 3, 

is expected for other electronic components 

too, like charge regulators 

for small PV systems and DC-AC converters, 

as well as for the control and 

monitoring facilities of widely-distributed 

systems. 

In particular, AC-coupled modular PV 

and hybrid systems for decentralized 

electrification offer a more cost-effective 

energy supply compared with 

stand-alone grids that are based on 

diesel gensets only. 

Fig. 8: the use of buildings and their hulls make decentralized grid-feeding an essential part of future utility networks. 

168

Fig. 9: PV and other renewable energies integrated into different electrical energy supply structures with communication and remote 

supervision facilities (dotted line): A) stand-alone system B) island grid C) utility grid 

Conclusion 

This article shows the trends for decentralized 

supply plants consisting 

of modular components. Furthermore, 

the current development status of the 

PV inverter technology is shown and 

the respective characteristics are 

pointed out. The AC-coupled modular 

hybrid system design has proven 

to be the optimal solution for extendable, 

grid-compatible power supply 

systems. Moreover, a concept for the 

electrification of a remote region with 

renewable hybrid systems is introduced. 

Communication facilities are 

considered to be a key technology for 

control, supervision and remote maintenance 

of decentralized PV systems. 

Furthermore, it will be shown that an increased 

production volume in the next 

years will result in a drastic decrease 

of the costs for PV system components 

due to innovative developments. 

Literature 

[1] 

W. Kleinkauf, F. Raptis, O. Haas: 

„Electrification with Renewable Energies, 

Hybrid Plant Technology for Decentralized, 

Grid-Compatible Power 

Supply“, Excerpt from Themes 96/97 

Solar Energy Association, Germany. 

[2] 

G. Cramer: „Solarkraftwerk mit 

modularem Aufbau“, Elektronik, Heft 

19/1999. WEKA Fachzeitschriftenverlag, 

Poing 1999. ISSN 0013–5658. 

[3] 

W. Kleinkauf, B. Burger, G. Cramer 

et al.:, Stromversorgung mit erneuerbaren 

Energien – Dezentrale Strukturen 

und modulare Systemtechnik 

– Forschungsverbund Sonnenenergie, 

2000, Berlin, Germany, pp. 49–58. 

[4] 

W. Kleinkauf, G. Cramer, O. Haas, 

M. Ibrahim, M. Meinhardt: „Control 

and Communication for Decentralized 

Photovoltaic Hybrid Systems“. 

PV in Europe, From PV Technology 

to Energy solutions, 7–11 Oct. 2002, 

Rome, Italy. 

169

170

171

Solar Power Systems 

More than 3 Gigawatts of Installed Capacity 

The successful development of photovoltaics 

over the past years is primarily 

due to the excellent political and 

financial framework. The Renewable 

Energy Act (German: EEG) had fundamental 

impact on the acceptance 

of this technology. This has promoted 

both investment in solar power systems 

and the technological progress 

in this sector enormously. 

The goal is to reduce dependency 

on fossil fuels, which are becoming 

scarce, and to reduce environmentally 

hazardous CO 2 emissions. Here, 

the use of photovoltaic systems is 

among the most effective measures, 

due to low wear and tear, and good 

scalability. 

On the following pages, we show 

several examples which demonstrate 

that the integration of solar power 

systems into the visual appearance of 

our cultural space is highly successful. 

These systems are not unsightly, 

and often even add to the aesthetic 

value of many buildings. Especially 

open spaces for which, as waste 

land, there was previously no use, 

gain a new practical social function 

by means of the construction of powerful 

solar power stations. 

Photovoltaic systems are now used 

as the basis of solar stand-alone grid 

systems in many corners of the world, 

in order to set up energy supplies in 

remote off-grid regions, which would 

otherwise be unthinkable. 

172

Top: 

Central Station 

Berlin 

190 kWp 

with Sunny Boy 2000 

Bottom left: 

Galli Immobilier 

Guadeloupe 

167.1 kWp 

with Sunny Mini Central 7000HV 

Bottom right: 

Energiepark 

Fünfstetten 

1.67 MWp 

with Sunny Mini Central 6000 

173

Top: 

Alpine Hut 

Italy 


and Sunny Island 4500 

174 

Bottom left: 

Templar Order Soup Kitchen 

Munich 

11.6 kWp 

with Sunny Boy 2000, 1700, 1100 

und Sunny Island 4500 

Bottom right: 

Village power supply 

Yunnan 

6 kWp 


and Sunny Island 4500

Top left: 

Salem 

USA 

8.4 kWp 

with Sunny Boy 2500U 

Top right: 

Audi Museum 

Ingolstadt 

10.8 kWp 


Bottom: 

Guesthouse Geiger 

Zerfaus Austria 

26 kWp 

with Sunny Boy 1100, 2100TL, 

3800, 4200TL, 5000TL 

175

Glossary 

Explanations Regarding Solar Technology 

Derating 

English for "reduction": A controlled 

reduction in performance, usually dependent 

on component temperatures. 

Compared with the (also common) 

practice of completely shutting down 

the device, the effect on the external 

grid is smaller with derating. 

Dumpload 

Here: load which can be spontaneously 

activated in the event of an energy 

surplus; it can also be used to 

balance out strong load fluctuations. 

The most practical loads in terms of 

energy are those with a storage effect 

(well pumps, cooling systems, 

boilers). However, for the actual technical 

function, appropriately cooled 

resistors suffice. 

176

H5-Topology 

The bridge in inverters with H5 topology 

has a fifth electronic switch. This 

ensures very high efficiency in the 

conversion of current, at a factor of 

98 %. 

Maximum Power Point "MPP" 

The operational point (current / voltage) 

of the PV generator under 

which the highest possible performance 

under the prevailing conditions 

is achieved. The actual MPP changes 

constantly, depending, for example, 

on the levels of solar radiation and 

temperature. 

MPP tracker 

Device which adjusts the voltage and 

current of a PV generator so that it 

is operated at its “Maximum Power 

Point”. 

MSD 

Part of an "independent disconnection 

device for power-generating 

systems". This is a mandatory safety 

device which safely prevents power 

from a solar energy system being fed 

into an external power grid when the 

public supply grid is not functioning. 

In the Sunny Boy / Sunny Mini Central, 

this function is taken over by the 

SMA grid guard while the single-failure-safety 

concept makes periodical 

checks unnecessary. 

Multi-String Inverter 

An inverter which to a great extent 

combines the advantages of several 

string inverters (separate MPP tracking 

of individual strings) and a central 

inverter (low specific costs). 

ment, which contains transformers and 

throttle valves as well as other nonsensitive 

components, can be actively 

cooled if required. 

SMA grid guard 

SMA grid guard monitors, among other 

things, the voltage and frequency 

of the connected AC grid according 

to predefined parameters in order 

to prevent the formation of a standalone 

grid upon grid disconnection. 

The SMA grid guard concept allows 

trouble-free and reliable connection of 

SMA inverters to almost any imaginable 

utility in the world. 

String Inverter 

An inverter concept that avoids the 

disadvantages of the central inverter 

concept. The PV generator is split 

into individual strings, each of which 

is connected to the utility by means 

of its own string inverter. This greatly 

simplifies installation, and the yield 

losses which can be caused by manufacturing 

deviations or variations in 

shadowing of the solar modules are 

greatly reduced. 

Varistor, thermally monitored 

Combination of varistor and temperature 

sensor for protection of the 

inverters from high voltages, e.g., in 

areas near lightning strikes. Protection 

against direct lightning strikes cannot, 

however, be provided by varistors; 

special accessories are necessary. 

OptiCool 

A patented housing concept by SMA, 

in which the interior of the housing is 

divided into two compartments. The 

compartment containing the sensitive 

electronic equipment is dustproof and 

waterproof, while the second compart- 

177

» Selected Innovations from SMA 

1991 

1995 

1998 

1999 

2001 

2002 

2002 

2003 

2004 

PV-WR 

First series-produced PV inverter 

Sunny Sunny Boy 700 

First string inverter 


Transformerless, 

with an efficiency > 96 % 

First megawatt system 

with string technology 


The system solution 

for stand-alone power supply 


Multi-string inverter 

with three independent MPP trackers 


Central Zentral-Wechselrichter inverter zum Aufbau von 

for großen large Solar-Kraftwerken 

PV power plants 

Sunny Beam 

Very simple wireless monitoring 

of PV systems 


New-generation Datenlogger data logger 

der neuen Generation 

User display, communication and 

visualization with PC 

Cost reduction via minimized DC 

cabling, simpler installation and increased 

efficiency 

3 % increase in efficiency with all 

necessary safety functions, such as MSD 

and all-pole sensitive residual current 

monitoring 

World's largest roof-integrated PV system, 

with 570 string inverters 

User-friendly coupling of all components 

on the AC side, simple installation 

and extension of the system 

Combines the advantages of string 

technology with cost reductions for 

larger inverters 

With Mit Stringüberwachung, string monitoring, Sunny Team, Central 

and Team optimal und einem service, optimalen Sunny Central Service ist 

the der large-scale Sunny Central solution die Lösung in der 

großen Klasse 

Attractive design for the living area, 

power supply via integrated solar cell 

Innovative monitoring Überwachung and und communication 

Kommunikation with the PV mit system der PV-Anlage via Internet via 

(Sunny Internet Portal) (Sunny Portal) 

2005 

2005 

2006 

2006 

2007 

2007 

2008 

2008 

2008 


Internet portal 

for the presentation of system data 


The test winner 


The world champion 

in terms of payback time 

ESS 



The Discovery of Simplicity 

Sunny Backup System 

Solar Power, 

even in the Event of Grid Failure 


Hoch Highly effizient efficient and easy to install 

und einfach zu installieren 


Perfection Plus. Usability. 


Compact Kompakt and und leistungsstark powerful, mit 

with Spitzenwirkungsgrad 

excellent efficiency 

Customized system monitoring 

and individual visualization at 

www.SunnyPortal.com 

The most powerful Sunny Boy with 

OptiCool, electric separation and peak 

efficiency in an aluminum die-cast 

enclosure 

H5 topology, record efficiency of 

98 %, low specific price: delivers 

shortest payback time 

First device-integrated DC circuit breaker 

for safe disconnection of the 

PV generator from the inverter 

Comfortable and efficient: quick installation, 

high efficiency, Opticool active 

ventilation system 

Awarded the "Innovationspreis 2007" 

(innovation award) as best solar 

product 

98 % Spitzenwirkungsgrad, peak efficiency, lowest niedrigster specific 

Preis price, pro OptiTrac Watt, MPP-Tracker MPP-control, OptiTrac, Power 

Schieflastmanager Balancer phase symmetry Power Balancer: manager: 

So The lassen efficient sich solution dezentrale for decentralized 

Großanlagen 

PV power effizient plants realisieren 

Bluetooth technology, graphic display, 

wordwide use and the easiest 

installation: leading-edge technology 

meets user convenience 

Bidirectional Bidirektionaler HF-inverter, HF-Wechselrichter, electric 

separation, galvanische reduced Trennung, weight, reduziert excellent im 

efficiency Gewicht, hoch effizient

Publisher 

Published by 


Art direction 

Matthias Holzhauer 

Georg Bangen 

Graphics 

Shauna Klose 

Jessica Krastev 

Retouching de Luxe 

Grunewald 

Text 

Anja Jasper 

Leonie Blume 

Margarete Glowka 

Photographs 

Andreas Berthel 

Wolfgang K. Weber 

Lucidmedia 

Benno Kraehahn 

gettyimages 

Technical editor 

Gerald Salisbury 

SMA, Sunny Boy, Sunny Central, Sunny Island, 

Sunny Beam, Sunny Design, Sunny Explorer, Sunny 

Family, Sunny Matrix, Sunny Portal, Sunny Tower, 

Sunny WebBox, Multi-String, OptiCool, H5, grid 

guard and Power Balancer are registered trademarks 

of SMA Solar Technology AG. Text and illustrations 

resemble the current state of the art at the 

time of publishing. Subject to technical changes. We 

accept no liability for typographical errors. Printed 

on chlorine-free paper. 

All trademarks are recognized, even if these are 

not expressly indicated as such. A lack of indication 

does not mean that a product or brand is not a 

registered trademark. This text and excerpts thereof 

may only be reprinted with written approval from the 

publisher. 

© Copyright 2008, SMA Solar Technology AG 

All rights reserved


www.SMA.de 

Sonnenallee 1 


Tel.: +49 561 9522 4000 

Fax: +49 561 9522 4040 

E-Mail: Sales@SMA.de 

Freecall: +800 SUNNYBOY 

Freecall: +800 78669269 

SOLARKAT-KEN082220 Subject to technical changes. We accept no liability for typographical errors. Printed on chlorine-free paper.

Sunny Island Catalgoue - Sinetech

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