Journal
ENERGY ECONOMICS
Volume 33, Issue 2, Pages 249-256Publisher
ELSEVIER
DOI: 10.1016/j.eneco.2010.07.002
Keywords
Electricity market modeling; Start-up costs; Wind energy; Oligopoly
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The increased wind energy supplied to many electricity markets around the world has to be balanced by reliably ramping 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 ramping 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 reduced. An increased wind supply erodes their attractiveness further. Consequently, a gap between the need for and the incentive to provide flexibility can be expected. (C) 2010 Elsevier B.V. All rights reserved.
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