ALU SOLAR - Aluform System GmbH & Co. KG

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ALU SOLAR - Aluform System GmbH & Co. KG

ALU SOLAR –Aluminium profilesystem with solarmodules for roofintegratedphotovoltaicsystemsflexible building.sustainable thinking.


PRODUCTSALU SOLAR – the resource-efficient synergy ofarchitecture, function and energy regenerationAluform standing seam profileALUFALZ pro 65/600Mounting of the panelsCrimping ofpanelsAluform standing seam profileALUFALZ 65/500Installation directionALU SOLARconnects modernarchitectural designwith the solar energygenerationAluminium is a modern building material,which more than any other materialcombines the variety of forms, long lifetime and design freedom. Due to thesequalities aluminium is broadly applied topanelling of roofs. In connection withamorphous UNI-SOLAR ® silicon thin-layermodules, Aluform SOLAR profiles offernew opportunities for contemporaryarchitecture and the efficient use of solarenergy.Aluminium standing seam profiles possessexceptional advantages due to the approvedprofiling as well as the positive qualities ofaluminium alloy AlMn1Mg0.5, since it is:❚ very light,❚ solid and stable,❚ maintenance-free,❚ durable,❚ aesthetic,❚ non-combustible,❚ easy to process and❚ easy to assemble.Aluform standing seam profiles are prefabricatedfolding systems for the applicationin the roof area. Due to the elaborate andoptimal joining technology, they can bequickly and easily installed. The Aluformstanding seam profile 65/500 and65/600 pro has been developed speciallyfor the application in the photovoltaicsystems integrated in the construction.761 ■


PRODUCTSALU SOLAR – amorphous solar thin-layer cells are flexible,lighter, more efficient and possess higher performanceTotal thickness of themulti junction cellThe development of the new ALU SOLARroof profiles is based on the innovative andflexible solar products of UNI-SOLAR ® ,which ideally harmonise with the light anddurable Aluform roof system ALUFALZ.Transparent contact layerBlue cellGreen cellRed cellBlack reflectivefoil layerFlexible stainless steelsupporting materialThe exceptional Triple Junction Technologyuses the blue, green and red parts of thesunlight in different layers of the solar cell.As a result a higher degree of efficiencyis reached as with crystalline solar cellsin case of minor solar radiation and of thediffuse light. Even in case of partly shadowing,electricity generation is still possibledue to the cells interconnected via bypassdiodes.Relative intensityAbsorption of the light spectrum as an example of theTriple Junction Technology1.00.80.60.40.20Total triple junction cellBlue absorbingcellGreen absorbingcellRed absorbingcellAnother advantage of the amorphousthin-layer solar cells – in comparison withcrystalline cells – is the constant poweroutput also in case of increasing temperatures.Moreover, crystalline solar modulesresult in considerable efficiency loss. Incontrast our ALU SOLAR modules areprovided with the complete performanceability, when this is most necessary.As in comparison with crystalline solarcells, the thickness of thin-layer cells isconsiderably lower, an explicitly minorexpenditure of materials may result furthermore.Also the process temperaturesduring production are much lower. Thisresults in a remarkably better energybalance in comparison with the traditionalcrystalline solar products.Wh/Wp0.80.750.70.650.60.550.5300400 500 600 700 800 900Wave length, mmPerformance record in case of increasing temperaturesPlace: Urbino, Italy (2003-2004)20 25 30 35 40 45 50 55 60 65 T (°C)(poly)Linear (poly)(mono)UNI-SOLAR ® : More efficient and ecological production processbased on a lower expenditure of material and energyProcess temperatures1000 °Cto1500 °CLinear (mono)UNI-SOLAR ® (amorphous)Linear (UNI-SOLAR ® (amorphous))Material expenditure≤ 300 μm300 °C1 μmThin-layer cells Crystalline cells Thin-layer cells Crystalline cells


PRODUCTSALU SOLAR – the symbioses of Triple JunctionTechnology and roof-integrated photovoltaic systemsThe connection of a durable aluminiumroof with a light, amorphous solar moduleintegrated in the aluminium profile resultsin an innovative and brilliant symbiosis.Particularly large to very large flat roofsare covered with our industrially manufacturedAluform standing seam profiledpanels. Crystalline solar modules arehardly economically applicable withoutelevation on the corresponding roofinclinations.kWh/kWpComparative display of calculated – actual energy yieldPlace: DresdenSource: UNI-SOLAR ®1 2 3 4 5 6 7 8 9 10 11 12Actual energy yieldCalculated energy yield(PV SOL)Radiation value: 987 kWh/m 2System capacity: 786 kWpAngle of inclination: 3°Installation: 2007Specific annual energy yieldprognosticated: 861 kWh/kWpmeasured:864 kWh/kWpMonths 2008Due to the Triple Junction Technology theenergetic utilisation has enormouslyincreased also for flat roof inclinations.Therefore, heavy and expensive elevationsystems are not necessary anymore.Average annual yield (2004-2006)Place: Santa Cruz, California, USASource: Solarquest ReportUNI-SOLAR ® 30° inclinationUNI-SOLAR ® 3° inclination12941654Also from an architectural point of viewa roof-integrated photovoltaic system is aCrystalline 30° inclination1268benefit. Thus, the planned geometry of abuilding can be aligned with the desiredenvironmentally friendly generation ofelectricity.Also in case of roof renovations, there isoften a request to win energy by means ofphotovoltaic systems. However, limits areset with regard to static aspects. Thisproblem can be solved by means of theapplication of the light Aluform SOLAR0 500 1000 15002000 in kWh/kWproof systems because the weight ofeffected simultaneously with the assemblyALU SOLAR, including the laminate, is only of the roof panel. In comparison to theapprox. 6.5 kg/m 2 . Besides, by means of assembly costs of traditional crystallinethe direct adhesion of the solar laminate modules, including necessary substructure,with the aluminium profiled roof panels, the installation time as well as the resultingcosts are also considerably reducedadditional critical wind loads have noimpact on the roof construction.here.The aluminium panels are deliveredtogether with the solar laminates on site.The assembly of the solar system is


Aluform – always part of the futurePhoto: fotoliaALU SOLAR opens up new perspectivesfor autonomous architectural design and future-orientated constructionPhotovoltaics is the key technology for theeffective energy generation. With the newALU SOLAR roof systems new perspectivesopen up for creative and environmentallyconscious construction. Architects anddesigners can develop and realise buildingsaligned with sustainability.The aesthetics of the architecture of aluminiumprofiles is functionally connected withthe effect of the environmentally friendlyelectricity generation. Form and functioncomply with the environmentally consciousphilosophy of the modern and future-orientatedconstruction.The application of amorphous silicon thinlayermodules to the roofs makes a varioususe of Aluform standing seam profiles,which can be integrated with the solar technology,in case of greatest possible designfreedom and efficient use of the solarenergy.The efficiency of amorphous solar modulesalways remains constant – in comparisonwith crystalline ones – in spite of fluctuatingtemperatures. Thus, ALU SOLAR profilesconnect the approved quality of the highvaluealuminium profiles for lightweightroofs with the advantages of solar energygeneration in a harmonious manner.The solar modules that are permanentlyapplied to the aluminium profile as a foil areeasily and efficiently applicable. Beside thefunction, they transmit the distinctive, autonomousarchitectural design to each roof.Due to the lightness of the solar modules ofthe roof system, architects and designershave a larger creative scope for individualdesign ideas and environmentally friendlyenergetic solutions.761 ■


Aluform System GmbH & Co. KGDresdener Straße 15D-02994 BernsdorfPhone: +49 (0) 35723 99-0Fax: +49 (0) 35723 99-401Email: info@aluform.dewww.aluform.de© www.mkwa.deTechnical DataLaminates: PVL 68 PVL 128 PVL 136 PVL 144Max. nominal capacity (Pmax):(Production tolerance +/- 5%)68 Wp 128 Wp 136 Wp 144 WpDimensions (LxW): 2849 x 394 mm 5486 x 394 mm 5486 x 394 mm 5486 x 394 mmIdeal roof inclination 3° - 20° 3° - 20° 3° - 20° 3° - 20°Max. roof inclination (Additionalscrew connection is necessary)60° 60° 60° 60°Voltage at Pmax (Vmp): 16.5 V 33 V 33 V 33 VCurrent at Pmax (Imp): 4.1 A 3.88 A 4.13 A 4.36 AShort-circuit current (Isc): 5.1 A 4.8 A 5.1 A 5.3 AOpen circuit voltage (Voc): 23.1 V 47.6 V 46.2 V 46.2 VMaximum series fuse rating: 8 A 8 A 8 A 8 ANote:In the first 8 - 10 weeks of the operation the electrical parameters may exceed the specified values (power output +15 %, operating voltage +11 %, operating current +4 %).The electrical specifications refer to measurements that were performed under standard test conditions (1000 W/m 2 irradiance, AM1.5, cell temperature 25 °) after stabilisation.(Source: Data sheets UNI-SOLAR ® )

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