Centralized and Integrated Decentralized Compressed Air Energy Storage for Enhanced Grid Integration of Wind Power
FCN Working Paper No. 2/2009
27 Pages Posted: 28 Sep 2010 Last revised: 19 Feb 2016
Date Written: September 1, 2010
In this paper, we model the economic feasibility of compressed air energy storage (CAES) to improve wind power integration. The Base Case is a wind park with 100 MW of installed capacity and no storage facility. In Variant 1 we add a central CAES system with 90 MW of compressor and 180 MW of generation capacity. The compressed air is stored in a cavern. The CAES system is operated independently of the wind park such that profits from peak power sales at the spot market and reserve power market are maximized. Variant 2 is an integrated, decentralized CAES system, where each wind turbine is equipped with a compressor but no generator. The compressed air is stored in a cavern and converted into electricity by a turbine, again maximizing profit as a peak power plant. Both variants are modeled for conventional diabatic and the more advanced adiabatic systems.
Keywords: Compressed Air Energy Storage, CAES, Wind Energy, Reserve Market
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