Photovoltaic systems for the future - Solare Werkstaetten

Photovoltaic systems for the future - Solare Werkstaetten

Information Brochure

Photovoltaic systems

for the future

Charles Darwin ( British Naturalist, 1809 – 1882 )

page 1

The power of the sun


Photovoltaics means the direct

conversion of solar energy to electrical

energy using solar cells. It was first

notably used in the late 1960s in space

travel (satellites technology).

Since the 1970s there have been

numerous efforts to make this energy

source economically viable.

Sunlight travels for 8 minutes and

19 seconds before it reaches

the earth. This wonderful journey

is constantly repeated


> One person consumes approx.

1,000 kWh of electricity annually.

Approximately 10 m 2 of photovoltaic

area is required to provide this power.

> A roof with 30 m 2 photovoltaic

area meets the energy requirements

of a family of three.

> The energy repayment period for

photovoltaic systems is between

3 and 4 years.

The sun is the greatest energy source of all. Humanity

has taken a long time to grasp its benefits. Now is the

time to take advantage of its power. The sun will continue

to shine for another 4.5 thousand million years –

providing clean energy for a very long time to come.

The situation is very different with fossil fuel reserves.

These are limited, non-renewable and will be used up in

the not-so-distant future. Whether we like it or not, the

global demand for energy will double by the year 2030.

Photovoltaics is still an emerging technology, but it has

the potential to meet our demand for energy while at

the same time being kind to the environment. We can

safeguard the future for our grandchildren by putting all

our efforts now into harnessing the power of the sun.

page 3

A small roof with 9kWp produces the

equivalent of the energy consumed by

three normal households.

Location > Fürstenzell

Module > Sovello SV-T, 195 W

Power inverter > SMA

Output > 9 kWp

In operation since > 10.05.2010

Orientation > South

> approx. 80m 2 Modul Space


Highest customer benefit based on

the correct integration with

exact shading design, using computersupported


Company profile

Valentin Weber

Master of Science in Renewable

Energy Systems

(University of Applied Sciences for

Technology and Business, Berlin)

System engineering and monitoring

(Meteocontrol Augsburg), Module

certification and thin film solar cells

research (The Photovoltaik Institut

Berlin and Centre for Solar Energy

Stuttgart), Simulation (Prof. Volker



T +49 - [0] 8506 - 13 05

M +49 - [0] 160 - 93 81 12 58

Solare Werkstätten has taken its

inspiration from the sun.

We combine economics with

the best ecological thinking.

Weber+Wimmer Solare Werkstätten GmbH is a consultancy

firm specialising in renewable energy systems,

particularly photovoltaic systems.

Since 2009 Solare Werkstätten has been designing and

producing photovoltaic systems for private and commercial

users. We provide our clients with the highest

quality service, thanks to our extensive technical skills

and state-of-the art design methods.

Regardless of the size or complexity, every challenge

requires a sound concept to ensure success. Our company

has a transparent structure which makes it easy to

communicate with us at the advisory stages. This in turn

means that we are able to provide you with realistic

and cost-effective proposals.

page 7


Photovoltaic technology is suitable

for both commercial and private users.

This roof with an area of approx.

250 m 2 produces 30,600 kWh annually.

Our main area of expertise is

the design of high output photovoltaic

systems in line with professional

and industry standards

Location > Fürstenzell

Module > Suntech Power, 175 W

Power inverter > SMA

Output > 29,4 kWp

In operation since > 29.06.2009

Orientation > South-west



Höchster Kundennutzen auf Grund

der richtigen Integration mit

exater Verschattungsplanung durch

computergestützte Simulation


Sebastian Wimmer

Master craftsman in metal

construction / construction technology

Organisation, design, Installation


By not being dependent on

individual suppliers, we get the

most from every ray of sunlight

T +49 - [0] 8506 - 13 05

M +49 - [0] 170 - 32 84 549

Our primary focus is the delivery of professional and

standardised high output photovoltaic system designs.

At all stages of the process – from shadow analysis to

component selection, to designing the power inverter –

our priority is to ensure the maximum benefit to our

clients. We hold a unique position in the industry, with

vast experience in research and development giving us

the edge in applying the latest computerised simulation


Clients can also benefit from our extensive experience

with tracking and stand-alone systems, which allows us

to offer customised solutions in this area.

We have the expertise required to identify the ideal

configuration for every system type while not being tied

to any individual suppliers. Professional system monitoring

subsequently ensures that output remains constant

over its entire lifespan.

page 11

This solar park can be completed within

two weeks from project launch to

connection to the grid. We guarantee

punctual and reliable delivery.

On-time project delivery combined with

research and development plus

industry-leading computer supported

simulation processes

Location > Thyrnau

Module > CNBM, 185 W

Power inverter > Kaco

Output > 249 kWp

In operation since > 26.06.2010

Orientation > South


Höchster Kundennutzen auf Grund



der richtigen Integration mit

exater Verschattungsplanung durch

computergestützte Simulation

This photovoltaic system was

developed and integrated in close

co-operation with the architects

and taking aesthetics into account.

No skimping

on design aesthetics

Location > Vornbach/Inn

Module > Yingli, 185 W

Power inverter > Danfoss

Output > 16,3 kWp

In operation since > 22.09.2010

Orientation > South





Kundennutzen auf Grund

der richtigen Integration mit

exater Verschattungsplanung durch

computergestützte Simulation


Irrespective of the size or complexity,

every order requires a sound concept

to ensure success

1 Consultancy




On-site meeting with client

Measurement of roof dimensions and

recording of specific local details

Evaluation of financially favourable

connection point

Assessment of individual client


System design complying with current

technology regulations, supported by a

multitude of software programs

Simulations and calculation of economic

efficiency based on different system


Selection of the appropriate configuration

from the entire range of components

Process applications to the network


Agreement of a suitable schedule –

payments, delivery times and installations

Product purchases from local wholesalers

(German warranty)

Installation of base

Installation of electrical framework

Installation of modules

Initial operation

Enhanced monitoring during the

start-up period

Analysis of the output curves

(clouding etc.)

Inspection of the actual/target values

(how does the system work in practice?)

5 year warranty on the

photovoltaic system

Available to clients at all times

Installation of system monitoring

page 17

Electricity prices and compensation

for electricity supplied to the grid are

converging, which is why it will be more

productive in the future to use one‘s

own electricity than to buy it.

At any time during the remuneration

period, the operator can switch between

feed-in supply and own consumption.

More own consumption

– more income!

The combination of grid

supply and own consumption

is the most economical

Location > Fürstenzell

Module > Yingli, 180 W

Power inverter > Danfoss

Output > 9,36 kWp

In operation since > 12.08.2009

Orientation > South


Frequently asked questions

solare Strahlung

1 Is my house suitable for

a photovoltaic system?

The suitability and cost efficiency of a

photovoltaic system is based on a number of

factors e.g. the orientation, roof inclination,

shading situation, etc.

Our consultancy service includes a free,

on-site evaluation.

2 Feed in power or own consumption?

Usually a combination of the two is the

most economical option, where a higher

own consumption share increases the cost

efficiency of the system.

3 Do I need a building permit?

In the majority of cases there is no planning

permission required. Planning permission

is only required if you live in a listed building

or in a conservation area. We will check

for you you whether you will need a building

permit or not.

4 Do I need to register my system to get

the feed in tariff?

To get the feed-in tariff the installer of your

choice needs to be MCS approved and

registered. After installing the PV system the

installer will register you with you Power

supplier so that you get the feed- in-tariff.

5 What is the life expectancy of

a photovoltaic system?

On average 25 years.

6 What is the energy repayment period

of a photovoltaic system?

The energy repayment period means the

PV System generates in 3-4 years the input

of energy that was necessary to produce

and install the photovoltaic system. After

this period you use clean energy.

7 What is the cost repayment period of a

photovoltaic system?

Between 7 and 9 years. Depending on how

you finance the PV Installation you will get a

return on investment of between 6 and 11%

8 What other benefits are there?

First of all you will profit for 25 years of

a retail price index and there for inflation

linked feed in tariff and– as most Installations

last well beyond you don’t pay a penny

for your electricity for many more years.

Furthermore the income you generate is


7 What is kWp?

Abbreviation for kilowatt peak, maximum

output of a photovoltaic module or a solar

power system.

1 kWp = 1,000 Watt peak

page 20

page 23

Weber+Wimmer Solare Werkstätten GmbH

Bad Höhenstadt 141

94081 Fürstenzell

T +49 - [0] 8506 - 1305

F +49 - [0] 8506 - 1304


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