Energy pay-back time and CO2 emissions of PV systems
Article first published online: 24 FEB 2000
Copyright © 2000 John Wiley & Sons, Ltd.
Progress in Photovoltaics: Research and Applications
Special Issue: Millennium Special Issue ‘PV 2000—And Beyond’
Volume 8, Issue 1, pages 17–25, January/February 2000
How to Cite
Alsema, E. A. (2000), Energy pay-back time and CO2 emissions of PV systems. Prog. Photovolt: Res. Appl., 8: 17–25. doi: 10.1002/(SICI)1099-159X(200001/02)8:1<17::AID-PIP295>3.0.CO;2-C
- Issue published online: 24 FEB 2000
- Article first published online: 24 FEB 2000
- Manuscript Revised: 3 SEP 1999
- Manuscript Received: 7 JUN 1999
- Netherlands Agency for Energy and the Environment, Novem
The energy requirements for the production of PV modules and BOS components are analyzed in order to evaluate the energy pay-back time and the CO2 emissions of grid-connected PV systems. Both c-Si and thin film module technologies are investigated. Assuming an irradiation of 1700 kWh/m2/yr the energy pay-back time was found to be 2·5–3 years for present-day roof-top installations and 3–4 years for multi-megawatt, ground-mounted systems. The specific CO2 emission of the rooftop systems was calculated as 50–60 g/kWh now and possibly 20–30 g/kWh in the future. This leads to the conclusion that in the longer term grid-connected PV systems can contribute significantly to the mitigation of CO2 emissions. Copyright © 2000 John Wiley & Sons, Ltd.