Integration of wind power and energy storage in SCUC problem

Global concerns over climate change and sustainability have led to a recent worldwide push towards electricity derived from renewable and sustainable resources. Wind power is one of the fastest growing renewable sources of energy generation in the U.S. and many other countries. Wind energy is a desirable resource because it´s cheap and clean. However, it´s intermittent, and the profile of energy generation does not correlate with the demand cycle. Basically, wind energy is available when the wind blows, and the power level depends on wind speed. Therefore, they are not dispatchable in the traditional sense. As installed wind capacity grows in a region, the intermittency of wind energy becomes a significant issue. One possibility to achieve higher system flexibility and security is energy storage investment. In this paper, Compressed Air Energy Storage (CAES) is considered to store electricity. This study presents a formulation of Security-Constrained Unit Commitment (SCUC) with integration of a compressed air energy storage (CAES) and wind generation. A case study is presented to validate the proposed model.