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A cost and environmental impact comparison of grid-connected rooftop and ground-based PV systems
Wild - Scholten, M.J. de; Alsema, E.A.; Horst, E.W. ter; Bächler, M.; Fthenakis, V.M.
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 11-9-2006
ECN publicatienummer: Publicatie type:
ECN-RX--06-024 Conferentiebijdrage
Aantal pagina's: Volledige tekst:
6 Download PDF  (271kB)

Gepresenteerd op: 21st European Photovoltaic Solar Energy Conference and Exhibition, Dresden, Germany, 4-8 september 2006.

The environmental impact and total system costs have been investigated for roof-top and ground-based crystalline silicon PV systems by using environmental and cost life cycle assessment. Greenhouse gas emissions and other environmental impacts from Balance-Of-System components are relatively small, in comparison with those of the total PV system. In-roof systems have lower impact due to credit from avoided roof tiles. With proper design of the mounting structure ground-based systems can have low impacts as well. Although large ground-based systems use larger weights of mounting structure than small roof-top systems and occupy land, they have lower prices than small-scale roof-top systems due to efficient installation and bulk purchasing.

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