BUILDINGS & PHOTOVOLTAICS GRID-CONNECTED PV-SYSTEMS
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1 Bekaert ECD Solar Systems LLC R BUILDINGS & PHOTOVOLTAICS GRID-CONNECTED PV-SYSTEMS Unique Photovoltai Tehnology based on: Shingles Metal Roofing Framed Power Modules
2 UNI-SOLAR ROOFING SYSTEMS The leader in Thin-Film Silion Photovoltais, Bekaert ECD Solar Systems LLC, offers a revolutionary line of produts for the built environment (grid-onneted appliations). Unlike other photovoltai tehnologies that use heavy, framed, glass-enapsulated modules, UNI-SOLAR framed PV-modules are unbreakable and lightweight. But the real superiority of UNI-SOLAR produts only beomes apparent in the UNI- SOLAR roofing produts for Building Integrated Photovoltais (BIPV). These arhiteturally attrative, roof integrated photovoltai produts emulate onventional roofing materials in design, onstrution, funtion and installation. UNI-SOLAR produts are ost-effetive design options for reating sustainable and energy selfsuffiient buildings. Three different UNI-SOLAR produt families are available for use in ombination with buildings in grid-onneted PV-systems: UNI-SOLAR PV-Metal Roofing Panel UNI-SOLAR PV-Shingles UNI-SOLAR Framed Power Modules UNI-SOLAR PRODUCT ADVANTAGES Solar panels are struturally and aesthetially integrated roofing elements (exeption: framed power modules) Cost-effetive installation through easy and fast fixing of large area roofing elements Standard installation tehniques (standing seam metal roofing, shingles) No support strutures needed for metal roofing and shingles Compatible with all traditional roof deks (diret installation on substrutures of wood, steel, onrete or insulation board) No bak-ventilation of solar panels neessary (panels an be plaed diretly on insulation material) Easy replaement of roof panels during renovation (roof is aessible for maintenane) Design freedom: ustom-made metal panels available Ridge to eave overage possible (homogeneous uni-oloured surfae) Arhiteturally pleasing produts with modern look Wind and waterproof roof Suitable both for renovation and for new buildings Unique UNI-SOLAR Triple Juntion Thin Film Silion Solar Cells Higher energy output espeially under non ideal orientations towards the sun (e.g. façades, nearly flat roofs) due to higher sensitivity to low light levels and to diffuse light Extremely shadow tolerant 0 Year limited warranty on power output
3 R PV SHINGLE ROOFING (SHR) Simple installation and a perfet math with asphalt shingles and slates UNI-SOLAR PV shingles permit roofs of ommerial and residential buildings to evolve from mere protetion from the weather to a soure of eletri power. The flexible, thin-film solar ell shingle perfetly blends into a roofing pattern of traditional asphalt shingles or natural and fibre ement slates, making them also suitable for historial buildings. Diret nailing on substruture Easy retrofit installation on top Easy to transport and to install of existing asphalt shingles No support strutures needed Suitable for historial buildings Extremely lightweight overed with natural slates Available in rolls of 1 interonneted solar ells (e.g. hurhes) Dummies available for filling edges Photos : ourtesy of Solar Century (UK) 3
4 METAL ROOFING (SSR) A ombination of arhitetural styling with the strutural performane and durability of Al-Zn oated (Aluzin or Galvalume ) steel. Aesthetially-pleasing, solar metal roofing panels are integrated into the roof just like onventional standing seam metal panels. Solar eletrial power is olleted through eletrial terminations loated on top or on the bottom of the panel. No dek penetrations are required. For residential, ommerial and publi buildings For renovation and new buildings Suitable for very low slopes ( 5 ) Modern arhitetural look Large design freedom (panel length, width, urvature). Al-Zn oated steel an be pre-painted to better math the building olors 1 4 Photos 1 & : ourtesy of Laura Star-roof (NL)
5 R METAL ROOFING (SSR) Designed for ease of installation, these solar panels an be diretly installed on (existing) wooden, onrete, or steel beams, avoiding the need for speial support strutures. System design and installation are made based on user needs. Easy installation No roof penetrations through roof skin neessary No bak-ventilation of solar panels neessary High power ratings per roofing element (64 Wp-56 Wp) Durable: Aluzin or Galvalume oating on steel panels Environmentally friendly (100 % reylable) 1 Photo 1: Courtesy of Rannila Steel, Rautaruukki-group (Fin) Photo : Courtesy of Solar Century (UK) 5
6 R POWER MODULES (US) Standard rigid modules with durable aluminium frame for easy fixing on mounting strutures on flat and sloped roofs. Unbreakable (no glass) Retrofit installation on top of roof tiles or flat roofs Power Ratings: 116, 64, 4, 3 Watts Laquered Galvalume -steel baking plate provides stiffness Anodised Aluminium Frame Weather Resistant Juntion Box Multi-Contat (MC)-Juntion Box with MC-onnetors optional 1 6 Photos 1 & : Courtesy of Solar Century (UK)
7 R POWER MODULES (US) 1 The unique Triple Juntion solar ells provide extra power under low light onditions, under diffuse light and during warm weather, resulting in a 10-0 % higher yearly energy prodution per purhased kwp ompared to all rystalline silion tehnologies For residential, ommerial and publi buildings UNI-SOLAR Triple Juntion Thin Film Silion tehnology High sensitivity for diffuse and low light levels Low temperature oeffiient More energy prodution per purhased kwp than rystalline silion tehnologies Bypass diodes per ell for shadow tolerane Twenty Year Limited Warranty CE-ompatible; JRC-Ispra CEI/IEC 61646/CEC-701 Certifiates; UL-listed. 3 Photos & 3: Courtesy of B.S.T.-Group, NL 7
8 Tehnology All UNI-SOLAR PV produts use the unique Triple Juntion solar ells of United Solar System Corp. This proprietary Triple Juntion tehnology provides unpreedented levels of effiieny for thin film silion solar ells. Eah ell is omposed of three semiondutor juntions staked on top of eah other. The bottom ell absorbs the red light, the middle ell the Film Layer green/yellow light and the top ell absorbs the blue light. This spetrum splitting apability is the key to higher effiienies and higher energy output, espeially at lower irradiation levels and under diffuse light. The ells are produed in a rollto-roll vauum deposition proess on a ontinuous roll of stainless Red Cell Bak Refletor Flexible Stainless Steel Substrate steel sheet, employing only a fration of the materials and energy of the prodution of standard rystalline silion solar ells. The result is a unique, flexible, lightweight Green Cell Blue Cell Transparent Condutive Oxide Film Thikness of omplete Multi-Juntion Cell: < 1.0 µm ell. The solar ells are enapsulated in UV-stabilised and weatherresistant polymers. The polymer enapsulation inludes EVA and t h e fluoropolymer TEFZEL (a Du Pont film) on the front side. The laminated solar ells are bonded to onventional roofing panels or fabriated into flexible roofing shingles. The resulting m o - dules are exeptionally durable. By-pass diodes are onneted aross eah ell, allowing the modules to produe power even when partially shaded. Eah module (exept SHR-17) has either a weather resistant juntion box, designed to aept 1.7 mm onduits or a Multi- Contat (MC) juntion box with MC-ables and onnetors. These modules are appropriate for all appliations from simple single module requirements to high voltage gridonneted appliations. Higher outdoor performane UNI-SOLAR produts perform better than all their rystalline silion and other thin film ounterparts under non-ideal orientations and under real outdoor onditions (higher kwh energy prodution per kwp purhased). This enhaned performane, up to 0 % higher, an be attributed to the higher sensitivity for low light onditions and for diffuse light, better performane at high temperatures and improved shadow tolerane of UNI-SOLAR produts. All solar modules are sold with their peak power performane (Wp) tested under laboratory onditions (STC): i.e. under a very high and diret irradiation (1000 W/m ), a module temperature of 5 C, and only one type of solar spetrum (AM1.5; mainly diret irradiation). Under real outdoor onditions, this peak power is seldom ahieved, sine module temperature usually is more in the range of C under illumination (espeially true for modules that are building integrated), the hours of 1000 W/m irradiation is only about 1 % of 8 total sun-hours and the spetral ontent of the solar spetrum hanges ontinuously with varying limati onditions. Diffuse light dominates when the sky is louded Relative effiieny 1,4 UNI-SOLAR 1, > 40 % STC 1 0,8 Crystalline Silion 0,6 0,4 0, Irradiane (W/m ) or during mornings and evenings. In Northern and Central Europe, the majority of solar irradiation omes from diffuse light (more than 50 % of all solar irradiation), and even in Madrid, the diffuse part is, on average, still 33 %. Outdoor testing has shown that UNI-SOLAR PV-produts perform 40 % better at low light onditions ( W/m ), than all present rystalline tehnologies. In Northern and Central European limates, where low light onditions and diffuse light prevail, this results in 10-0 % higher yearly energy output per Wp purhased power for UNI-SOLAR produts ompared to all rystalline (and other thin film) tehnologies. In warm, southern limates suh as in Southern Europe, performane and yearly energy harvest is also 0 % higher, in this ase due to the better temperature behaviour. QUALITY ASSURANCE - PROVEN RELIABILITY UNI-SOLAR - modules omply with the following qualifiation tests (CEI/IEC ertifiate) : Thermal Cyling Humidity-Freeze Test Damp Heat Test UV-Test Wet Insulation Test Mehanial Load Test Hail Impat Test Robustness of Terminations Test
9 R SPECIFICATION & INSTALLATION Produt: UNI-SOLAR SHR-17 SECTION THROUGH A PV-SHINGLE ROOF UNI-SOLAR PV-Shingle Conduit Wire Way Appearane: the surfae is textured to blend and omplement the granular surfae of the surrounding onventional shingles Shingle roll size: mm x mm; 1 interonneted ells per roll (ell size: 17.0 mm x mm) Eletrial onnetions: two 300 mm long lead wires exiting from the bottom side of eah shingle roll UNI-SOLAR PV Shingle 195 m ative ell exposure SECTION DETAIL Triple Overlap #30 Roofing Felt Plywood Sheating Pos. & Neg. Output Wires, Wireway Installation: nailed in plae using ommon roofing nails on onventional roof deking over a #30 (0.44 kg/m ) feltunderlayment or over a vapour barrier film. Applied in onseutive overlapping layers. An EVA-strip on the bak of eah SHR-17 element seures additional fixation to the underlaying SHR-17 element (upon heating with a hot air blower). Lead wires on bak side of the head-lap pass through the roof dek to allow wiring onnetions to be made in the sub-roof spae UNI-SOLAR SHR-17 PV-ELEMENT Solar Tab Cell mm mm 17.0 mm mm Wind load: independently tested up to 96 km/hour Weight per shingle element:.1 kg (installed weight: 7.5 kg/m ) Suitable roof slopes: Maximum system voltage 600 V System: typial systems range from 1 kwp to 15 kwp Photos: ourtesy of Ulfex 9
10 SPECIFICATION & INSTALLATION Produt: UNI-SOLAR SSR-64 or SSR-18 and other ustom made strutural standing seam roofing panels 1 Metal Panel: 0.78 mm thik steel (S51GD or S80GD) with 185 g/m Aluzin /Galvalume oating (Al-Zn-Si, by wt %) on both sides Finishing: unlaquered or laquered with polyurethane/poly-amide (PU/PA); various olours on request Panel width (in situ): 40 mm standard width, but variable upon speial request (405 mm minimum); Panel length: ustomer speified; - for 64 Wp panels minimum length is.94 m; - for 18 Wp panels minimum length is 5.56 m; - for 19 Wp panels minimum length is m; - for 56 Wp panels minimum length is m; - maximum panel length: 1 m Span width: about 500 mm Roof slope: minimum 5 (8 %) Minimum radius of urvature for urved steel panels: 1. m Appliable on: plywood frame, metal dek, rigid board insulation, metal framing, fibre-ement plates and onrete substrutures Eletrial onnetions: standard top termination (an be hidden and proteted by ridge ap). Bottom termination on speial request. Terminals end in a Juntion Box. Maximum system voltage 600 V Systems: typial systems range from 3 kwp to 100kWp. SEAM EDGE DETAIL Seam Edge UNI-SOLAR Roofing Laminate RIDGE CAP DETAIL Wire Way Clip SECTION VIEW: PANEL ATTACHED TO PURLIN WIRING DETAIL 40 mm Purlin Wire Way Below Dek 10 Photo 1: ourtesy of Thyssen Bausysteme (D) (1) - Photo : ourtesy of Laura Star-Roof (NL)
11 R ELECTRICAL SPECIFICATIONS PRODUCT SHR-17 SSR-64 SSR-18 SSR-19 SSR-56 US-116 US-64 US-4 US-3 Rated Power (W) Operating Voltage V MPP (V) Operating Current I MPP (A) Open iruit Voltage V OC (V) Open Ciruit Voltage V OC at -10 C and 150 W/m (V) Short Ciruit Current I SC (A) Short Ciruit Current I SC at 75 C and 150 W/m (A) Series fuse rating (A) Minimum bloking diode (A) Dimensions (mm) a b b b b x 40.0 x 40.0 x 40.0 x 40.0 x 76.0 x 741. x 741. x 38.7 x e e e e Weight (kgs/m ) d < Area (m ) a Shingle width inluding head-lap. In situ, exposed shingle width = 17 mm. b In situ panel width (inluding mounting lip width). Atual panel width 418 mm. Valid only for the two separate PV-laminates onneted in series. Voltage and urrent may vary, if the two PV-laminates are interonneted differently. d In situ weight inluding three layer overlap e Minimum panel length. Atual panel length on ustomer s request. Eletrial speifiations (+/- 10 %) are based on measurements performed at standard test onditions of 1000 W/m irradiane, Air Mass 1.5 and Cell Temperature of 5 C after longterm stabilisation. Performane may vary up to 10 % from rated power due to low temperature operation, spetral and related effets. During initial 8-10 weeks of operation, UNI-SOLAR PV-produts have higher eletrial output than rated output. The output power may be higher by 15 %, the operating voltage may be higher by 11 % and the operating urrent may be higher by 4 %. In some appliations, this initial power bonus must be onsidered when sizing power system omponents suh as wiring, inverters and swithgear. Inverters for UNI-SOLAR PV-Produts. BESS EUROPE advises only to use inverters with a galvani separation between AC and DC side (i.e. inverters having a transformer). The maximum open iruit voltage V OC at -10 C and 150 W/m irradiation per module should be used as the design voltage to alulate string voltage(s) fed into the inverter(s). It is further reommended to take into aount the higher power output of UNI-SOLAR PV-modules during initial 8-10 weeks of operation of the system. In order to harvest as muh as possible from the DC-energy generated by the UNI-SOLAR PV-modules as AC-energy, inverters should have a fairly onstant effiieny urve with respet to inoming solar energy. European Conversion Effiieny of the inverter should be typially higher than or equal to 94 %. And more importantly, the inverter should still have a fairly high onversion effiieny, also for very weak irradiation levels as low as 40 W/m (orresponds to 4 % of rated DC-power of the modules). Several inverters on the market simply do not swith on before at least 10 % of the rated DC-power of the string to whih they are onneted, is reahed. Positive results have been reahed with the following types of inverters: Fronius (whole range), SMA (whole range, exept the SunnyBoy 000), ASP. This list is of ourse far from exhaustive. Supply of omplete turn-key UNI-SOLAR PV-Systems. For large projets (min. size 0 kwp), BESS EUROPE offers omplete UNI-SOLAR PV-Systems inluding: system design and engineering, inverters, DC-abling, support strutures (in ase of rigid framed panels) or Aluzin steel metal roofing, mehanial installation of the PV-system (metal roof installation if appliable) and eletrial installation of the PV-system. 11
12 R Bekaert ECD Solar Systems LLC CORPORATE PROFILE Energy Conversion Devies, In. (ECD), with orporate offies in Mihigan, USA and N.V. Bekaert S.A. (Bekaert), with group headquarters in Belgium, Europe, two of the world s most respeted high tehnology ompanies, formed a strategi alliane in April 000 to meet the growing demand for UNI-SOLAR produts. The ECD-Bekaert alliane works through two ompanies: United Solar Systems Corp. (United Solar) and Bekaert ECD Solar Systems LLC (Bekaert ECD). United Solar is a joint venture between ECD and Bekaert. Bekaert ECD is a joint venture between Bekaert and United Solar. United Solar develops and manufatures the Triple Juntion solar ells for the UNI-SOLAR brand of solar panels and systems. Bekaert ECD assembles and sells UNI-SOLAR produts through its world-wide distribution network. In Europe, UNI-SOLAR produts are sold by Bekaert ECD Solar Systems Europe N.V. (BESS EUROPE). SALES OFFICE BESS EUROPE Bekaert ECD Solar Systems Europe N.V. Karreweg 13, B-9870 ZULTE (Belgium) Tel. +3-(0) Fax +3-(0) jenny.dierik@bekaert.om Internet: CORPORATE HEAD OFFICE Bekaert ECD Solar Systems LLC 1100 West Maple Road Troy, MI 48084, USA. UNI-SOLAR is a registered trademark of United Solar Systems Corp. and Bekaert ECD Solar Systems LLC. Resp. Eds.: Paul Lippens and Maarten van Cleef. Tehnial Modifiations reserved. 09/001
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