ECN publication
Title:
Environmental impacts of PV electricity generation - a critical comparison of energy supply options
 
Author(s):
Alsema, E.A.; Wild - Scholten, M.J. de; Fthenakis, V.M.
 
Published by: Publication date:
ECN Solar Energy 11-9-2006
 
ECN report number: Document type:
ECN-RX--06-016 Conference Paper
 
Number of pages: Full text:
7 Download PDF  

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

Abstract:
An overview is given of the environmental impacts of different PV technologies both at the present status of technology and for future technology. Crystalline silicon PV systems presently have energy pay-back times of 1.5-2 years for South-European locations and 2.7-3.5 yr for Middle-European locations. For silicon technology clear prospects for a reduction of energy input exist, and an energy pay-back of 1 year may be possible within a few years. Thin film technologies now have energy pay-back times in the range of 1-1.5 years (S.Europe). Greenhouse gas emissions are now in the range of 25-32 g/kWh and this could decrease to 15 g/kWh in the future. Therefore PV energy systems have a very good potential as a low-carbon energy supply technology.


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