Saint-Gobain’s CIGS Thin Film PV Modules : An excellent Solar Power Solution

Thin film has fundamental advantages over silicon PV Why thin film? Thin film has fundamental advantages over silicon PV Thin film module costs are lower and more stable than silicon Thin film modules have a much shorter energy payback time Thin film value chain is simpler Thin Film value chain is, by nature, fully integrated Overall, the production process is shorter, simpler, and easier to automate – resulting in more potential for lower cost Thin film module costs are lower and more stable than silicon Fewer raw materials and no exposure to silicon supply cost and volatility Thin film modules have a much lower energy payback No need to grow and re-process silicon at 1000+°C Thin film value chain is less extensive Expected to increase share of supply for thin film over silicon Confidential : Not for sharing without authorisation

Why Avancis? Lowest Cost per Wp Avancis modules have shown the highest efficiency of any thin film technology: 20.3% record cell efficiency in the laboratory 15.5% record module aperture efficiency (0.1m²) 11.0% average module area efficiency in fab (1m²) Since all thin film technologies have similar cost per unit area, the lowest cost per Wp will result from the technology with the highest efficiency. Avancis gives most value for money. Confidential : Not for sharing without authorisation

Being CIGS it has the Widest Absorption Spectrum Why Avancis? Being CIGS it has the Widest Absorption Spectrum Confidential : Not for sharing without authorisation

Energy generation performance suited for hot countries Why Avancis? Energy generation performance suited for hot countries Temperature coefficient Lowlight behavior Module energy yield is fully characterized in the simulaiton software by : Low light behavior Temperature coefficient NOCT determines performance These data are continuously monitored in our Fabs Confidential : Not for sharing without authorisation

Excellent shadowing tolerance : lesser area Why Avancis? Excellent shadowing tolerance : lesser area Rel. power (%) Shadowing (%) Needs about 4.5 acres / MWp Confidential : Not for sharing without authorisation

Best energy generation requiring optimal area Why Avancis? Best energy generation requiring optimal area S.No Typical Parameters UOM CIGS A-Si/µc-Si C-Si 1 Module Efficiency % 12.3 9.3 14.6 2 NOCT °C 40 46 45 3 Dimension mm 1587 x 664 1402 x 1001 1663 x 987 4 Performance Ratio 83.3 82 77.9 5 Produced Energy kWh/year 1667128 1642847 1558753 6 Area required Acre 4.5 5.5 Confidential : Not for sharing without authorisation

Avancis PV modules : Best Solar Power for India Avancis advantages Spectral absorption range is widest from 300-1300 nm (mono/poly/a-Si cells ranges from 400-700 nm) 5-10% more energy generation than crystalline silicon modules. Better suited for hot countries than Cr- Si More energy generation than Cr-Si even in low light, cloudy or hazy conditions. Produce consistent superior output (kWh/kWp) when tested in the same natural environment Lower cost production as compared to Cr Si Contains no hazardous or environmentally toxic materials Versatile technology : easily applied in rooftops or fields Land requirement comparable to that of Cr-Si projects Aesthetics: The uniform solid black color of the panels has an excellent appealing appearance Comes with the Credibility of Saint-Gobain name Confidential : Not for sharing without authorisation

Website : www.avancis.de/en Contact : SUGAN T.K. Email ID : sugan.tk@saint-gobain.com Website : www.avancis.de/en