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Unit commitment approximations in generation and transmission planning: efficiency & accuracy

B.F. Hobbs, S. Kasina, J. Ho, S. Wogrin

Alternative tight relaxations of unit commitment problems that enable large planning models to be solved with operating subproblems that capture ramp, start-up, and pmin limits and costs. We examine their performance in the context of generation and transmission expansion models, including a stochastic programming analysis of the western interconnection of North America.

Published: November 2015.


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