标题：Impacts of the German Support for Renewable Energy on Electricity Prices, Emissions and Profits: An Analysis Based on a European Electricity Market Model.
期刊名称：DIW Diskussionspapiere / Deutsches Institut für Wirtschaftsforschung, Berlin
出版年度：2007
卷号：2007
出版社：Deutsches Institut für Wirtschaftsforschung, Berlin
摘要：Effects of renewable support legislation on electricity prices have been
analyzed with a plethora of models. However, these models neglect at least one
of the following aspects which we take into account in our analysis:
oligopolistic market behavior of dominant firms, emission trading, restricted
electricity trade and production capacities, and effects on producer prices and
firm profits. In this paper we use the electricity market model EMELIE and
decompose the impact of the feed-in of renewable energy in Germany into two
effects: a substitution effect triggered by the displacement of conventional
sources and a permit price effect induced via the ETS. We find that the
renewable support increases consumer prices slightly by 0.1 Eurocent/kWh, while
the producer price decreases by 0.4 Eurocent/kWh. In addition, emissions from
electricity generation in Germany are reduced by 32 Mt CO2, but are hardly
altered if we consider the European electricity sector in total. Finally, the
profits of most firms are significantly reduced by the support policy unless the
firms combine relatively carbon intensive production equipment with a loose
connection to the German grid.
