期刊名称：DIW Diskussionspapiere / Deutsches Institut für Wirtschaftsforschung, Berlin
出版年度：2009
卷号：2009
出版社：Deutsches Institut für Wirtschaftsforschung, Berlin
摘要：The increased wind energy supplied to many electricity markets around the world
has to be balanced by reliable back up units or other complementary measures
when wind conditions are low. At the same time wind energy impacts both, the
utilization of thermal power plants and the market prices. While the market
prices tend to decrease, the impact on the utilization of different plant types
is at the outset unclear. To analyze the incentives to invest in thermal power
plants under increased wind energy supply, we develop a computational model
which includes start-up restrictions and costs and apply it to the German case.
We find that due to current wind supply the market prices are reduced by more
than five percent, and the incentives to invest in natural gas fired units are
largely decreased. An increased wind supply erodes their attractiveness further.
Consequently, a gap between the need for and the incentive to provide exibility
can be 'expected'.
