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PHOTOVOLTAIC GLASS CRYSTALLINE SILICON CELLS

Rome builds solar glass project

From 20 December, official inauguration day – and in perfect timing to receive the thousands of faithful and visitors who will flock to the Eternal City for the opening of the Jubilee Year – the glass “roof” of the Vatican Museums’ “ Courtyard of the Corazze ” entrance will unveil its new green and eco-friendly guise, thanks to the construction, in the record time of six months, of a roof system with latest-generation photovoltaic glass panels. [pdf]

250w double glass module weight

Solar Cells Polycrystalline 156mm x 156mm (60 cells) Dimensions 1640 x 992 x 35mm Weight 19.0kg Front Glass 3.2mm tempered, antireflective glass Frame Anodized/electrophoretic aluminium alloy Cables 4.0mm2, symmetrical lengths 1.2m Connector Genuine MC4 Junction Box IP67 rated fully sealed German Leoni Rated Power at STC (Pmpp) W 250 Positive Power Tolerance W +5 Maximum Power at STC W 253 Cell Efficiency % 17.4 - 17.6 Minimum M odule Efficien cy (%) % 15.4 - 15.7 Maximum Rated Power Voltage (Vmpp) V 29.9 Maximum Rated Power Current (Impp) A 8.35 Open Circuit Voltage (Voc) V 37.1 Short Circuit Current (Isc) A 8.92 Maximum System Voltage V 1000 Maximum Series Fuse R ating A 15A Fire Rating Class A 946mm [pdf]

Anti-glare glass solar

Tempered glass, as the protection cover of PV modules, will partially reflect some of the incident sunlight by Fresnel reflections and create glare, especially at larger angles of incidence, which is harmful to energy efficiency and effective operation of PV modules in special places, such as road driving of automobiles and aircraft navigation. 1–3 To reduce the reflected sunlight and glare intensity, one of the solutions is to use anti-reflection coating and anti-glare coating on the cover glass. 4–6 However, the coating will fail as it becomes thinner or damages over time in outdoors. 7 In other methods, surface texturing is used to redirect more incident energy into the glass and spread out the reflected beam. 8–11 The most commonly found structured surfaces on the glass cover of PV modules for anti-reflection include inverted pyramids (IPs), 2D grooves, and bump structures with size range from 0.2 to 2 mm. 12–15 The improvement from the structured glasses varies from 2% to 8% due to different field conditions, such as climate, inclination angle, dust condition, and cleaning method. [pdf]

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