Pilkington Sunplus BIPV Powered by NEXBuilding. Provides power generating solutions for vertical and horizontal applications

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1 Pilkington Sunplus BIPV Powered by NEXBuilding Provides power generating solutions for vertical and horizontal applications

2 Pilkington Sunplus BIPV Powered by NEXBuilding Indoor perspective. BIPV stands for Building Integrated Photovoltaics (BIPV) and refers to a building component which has been enhanced to perform as a renewable energy-generating material in addition to being an integrated part of the architecture and building facade. Examples include windows, sunshades, spandrel glass and skylights. Our latest development Pilkington Sunplus BIPV, provides power-generating, architectural glass solutions for both vertical and horizontal applications, allowing building proprietors and developers to turn buildings into powergenerating assets. Pilkington Sunplus BIPV combines the proven reliability and efficiency of crystalline silicon technology with the world s leading glass brand. PV Vision PV Vision refers to Pilkington Sunplus BIPV with a high degree of transparency. It can be supplied in either a single laminated format or as an integrated Insulating Glass Unit (IGU); providing a unique combination of attractive aesthetics, effective daylighting, superior thermal performance and high power density. Key Benefits l Seamless Integration: Pilkington Sunplus BIPV is designed for ease of integration into the design of a building, allowing for desired combination of aesthetics and performance. l Custom Design: Partial and full layout of PV-cells allow for flexible design. l Reliability: Pilkington Sunplus BIPV uses proven monocrystalline silicon PV cell technology for quality, durability, and performance. l Attractive Aesthetics: Effective glare control, reducing the need for internal blinds. l Sustainability: Pilkington Sunplus BIPV can assist with the LEED and BREEAM certification process towards a Net-Zero Building, improving the sustainability credentials of a building. l Compelling Economics: Typical project payback is under 10 years due to factors including: downsizing of HVAC system, minimizing blinds and sunshades, reduced operating costs, value of energy generation, possibility of incentives for PV available to both property owners and building developers. l External Testing: NEXBuilding PV technology has been corroborated by the Lawrence Berkley National Laboratory. The study concluded that the integration of the technology into an insulated glass unit allowed for: more than 16% savings in net electricity use,* up to a 6% savings in HVAC energy usage (year-round average),* 20% improvement in Solar Heat Gain Coefficient (SHGC), equivalent to g-value in Europe (SHGC / g-value can be further reduced with the use of high-performance glass coatings), an effective balance of high power density and light transmittance. l Certification: Modules have been tested and certified by KIWA according to: IEC 61215:2005 / EN 61215:2005 Crystalline silicon terrestrial PV modules (Design qualification and type approval), IEC :2013 / EN /A2:2013 PV module safety qualification (Requirements for construction), IEC :2012 / EN /A1:2012 PV module safety qualification (Requirements for testing). * Values are specific to the study performed and will vary based on the amount of NEXBuilding PowerView integrated into the building facade.

3 Reference Design Electrical Specification PV Module Design Constraints Dimensions PV Module Length 1540 mm Typical PV Laminate Thickness 9.5 mm Width 1020 mm Recommended Min IGU Thickness* 30 mm Electrical Specification Weight 23 kg/m² Power P max 120 W Efficiency 8.8 % Open Circuit Voltage (V oc) 22.2 V Short Circuit Current (I sc) 7.1 A Max Power Voltage (V mp) 18.2 V Max Power Current (I mp) 6.6 A Temperature Performance Coefficient of P max 0.40% / C Coefficient of V oc 0.30% / C Coefficient of I sc +0.05% / C Materials Specification PV Type Monocrystalline PV Strip mm PV Gap 2.8 mm PV Coverage 51% Interlayer PVB Junction Box Edge Mounted Junction Box Length 106 mm Width 13 mm Height 16 mm Diode Qty Per Junction Box 1 Junction Boxes Per Module Variable Certification IEC 61215:2005, IEC :2013, IEC :2012 * Value corresponds to a 9.5 mm outboard laminate assembled to a 4 mm inboard lite. Junction box. Indicative data depending upon module design. PV Module and Junction Box The junction box is attached to the edge of the module and the number of junction boxes will depend on the design and associated electrical parameters. Where one junction box is required it will be placed in the middle of the unit. Where two junction boxes are required, they are placed approximately at a 1/3 and 2/3 across the width of the module. PV Module with junction box (edge connector) and junction box.

4 Optical and Thermal Performance Pilkington Sunplus BIPV can be customised to offer optimum values in light transmission in the visible and g-values. By combining the PV laminate with both thermal and solarcontrol coatings in an IGU, architects and façade engineers can create a pleasant indoor environment whilst adding a power-generation feature to the building. How it works Pilkington Optiwhite allows maximum solar energy transmission which the crystalline silicon PV cells in the laminate convert into electricity. The coating in the IGU controls solar heat radiation from the sun by reflectance, transmittance and absorptance. The Pilkington range of energy-efficient and solar control coatings combine high light transmittance, colour neutrality and typically U g -values of W/m²K. Outside Inside A solar-control or low-e coating on either 4 mm Pilkington Optifloat Clear or 4 mm Pilkington Optiwhite substrate 4 mm Pilkington Optiwhite 1.5 mm Laminate Including PV Cells 4 mm Pilkington Optiwhite Insulating Glazing Unit 16 mm Cavity Insulating Glass Unit incorporating Pilkington Sunplus BIPV and coated solar control or low-e glass. Optical modelling using different Pilkington energy-efficient products. Calculations are made according to EN410 / EN673. Product g-value ER LT LR out Pilkington Sunplus BIPV 0,49 0,08 0,44 0,08 Pilkington Sunplus BIPV in IGU Pilkington Optitherm S1 Plus (4 mm) 0,26 0,13 0,37 0,11 Pilkington Optitherm S1 (4 mm) 0,23 0,14 0,34 0,12 Pilkington Optitherm S3 T (4 mm) 0,31 0,11 0,39 0,09 Pilkington Suncool One 60/40 (6 mm) 0,29 0,12 0,29 0,10 Pilkington Suncool 70/40 (4 mm) 0,26 0,12 0,35 0,09 Pilkington Optifloat Clear (4 mm) 0,40 0,08 0,40 0,10 NSG Group can assist with the modelling using different coatings combinations.

5 PV Spandrel PV Spandrel is the name given to Pilkington Sunplus BIPV when it is supplied in a spandrel BIPV solution. With 100% PV cell coverage, the spandrel product is an architecturally appealing, high power density, opaque solution with approximately 18% module efficiency. The PV spandrel is designed to complement the semi-transparent Pilkington Sunplus BIPV (PV Vision), increasing the overall energy performance of the building. Key Benefits The Pilkington Sunplus BIPV Spandrel solutions provide all the PV Vision benefits, as well as: l delivers higher power density combined with appealing aesthetics, l can be effectively integrated into the design of a building on its own, or combined with PV Vision enabling higher glass to wall ratio, l flexible design layout of cells is possible in a range of colours, to suit custom aesthetic requirements. Image for illustration purposes only. Reference Design Electrical Specification PV Module Design Constraints Dimensions PV Module Length 1060 mm Typical PV Laminate Thickness 11 mm Width 822 mm Recommended Min IGU Thickness* 31 mm Electrical Specification Weight 23 kg/m² Power P max 160 W Efficiency 18.4% Open Circuit Voltage (V oc) 22.2 V Short Circuit Current (I sc) 9.3 A Max Power Voltage (V mp) 18.4 V Max Power Current (I mp) 8.7 A Temperature Performance Coefficient of P max 0.40% / C Coefficient of V oc 0.30% / C Coefficient of I sc +0.05% / C Junction Box Length 106 mm Width 13 mm Height 16 mm Diode Qty Per Junction Box 1 Junction Boxes Per Module Variable * Value corresponds to a 11 mm outboard laminate assembled to a 4 mm inboard lite. Materials Specification PV Type PV Strip PV Coverage Interlayer Junction Box Monocrystalline mm 100% (except edge area) PVB Edge Mounted Indicative data depending upon module design.

6 Manufacturing Excellence Pilkington Sunplus BIPV is combined with the latest technologically advanced glass from the Pilkington glass range. We use the latest technology combined with over a 100 years of manufacturing experience and processing glass to deliver fault-free, clear and durable end products. After the lamination process the module is as robust as a normal glass laminate and can be processed into an IGU, which is then installed in a window frame. Pilkington Sunplus BIPV can be delivered in different dimensions for a variety of applications across the building skin, both vertically and horizontally. The dimensions and lay-out of the strings will ultimately determine the electrical parameters of the module. NSG Group can provide assistance throughout the module design process and support in the energy yield estimate of the building by supplying energy prediction models. Design Flexibility Pilkington Sunplus BIPV solutions can be customized to achieve desired combinations of aesthetics, thermal performance, effective daylighting, glare control and power generation. The layout of the strings can be tailored to create a visually stunning look that enhances the appearance of buildings: l cell-to-cell gaps can be adjusted, l colours can be blended. Customised PV spandrel in grey colour. For further information visit our website or contact: Thomas Braun T: M: E: Thomas.Braun@nsg.com W: pilkington.com

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8 11491 January 2018 This publication provides only a general description of the products. Further, more detailed, information may be obtained from your local supplier of Pilkington products. It is the responsibility of the user to ensure that the use of these products is appropriate for any particular application and that such use complies with all relevant legislation, standards, codes of practice and other requirements. To the fullest extent permitted by applicable laws, Nippon Sheet Glass Co. Ltd. and its subsidiary companies disclaim all liability for any error in or omission from this publication and for all consequences of relying on it. Pilkington and Suncool, Optitherm, Optiwhite, Sunplus, Optifloat, are trademarks owned by Nippon Sheet Glass Co. Ltd, or a subsidiary thereof. Images for illustration purposes only. CE marking confirms that a product complies with its relevant harmonised European Norm. The CE marking label for each product, including declared values, can be found at Pilkington United Kingdom Limited Registered office: European Technical Centre, Hall Lane, Lathom, Nr Ormskirk, Lancashire L40 5UF Telephone Fax pilkington@respond.uk.com