期刊
ENERGY POLICY
卷 94, 期 -, 页码 336-344出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.enpol.2016.03.034
关键词
EROI; ERoEI; Photovoltaic energy; Insolation levels; Switzerland; Germany
Many people believe renewable energy sources to be capable of substituting fossil or nuclear energy. However there exist very few scientifically sound studies, which apply due diligence to substantiating this impression. In the present paper, the case of photovoltaic power sources in regions of moderate insolation is analysed critically by using the concept of Energy Return on Energy Invested (ERoEI, also called EROI). But the methodology for calculating the ERoEI differs greatly from author-to-author. The main differences between solar PV Systems are between the current ERoEI and what is called the extended ERoEI (ERoEI(EXT)). The current methodology recommended by the International Energy Agency is not strictly applicable for comparing photovoltaic (PV) power generation with other systems. The main reasons are due to the fact that on one hand, solar electricity is very material-intensive, labour-intensive and capital-intensive and on the other hand the solar radiation exhibits a rather low power density. (C) 2016 Elsevier Ltd. All rights reserved.
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