Locational Marginal Pricing Basics for Restructured Wholesale Power Markets

Haifeng Liu, Leigh Tesfatsion () and A.A. Chowdhury

ISU General Staff Papers from Iowa State University, Department of Economics

Abstract: Abstract: Although Locational Marginal Pricing (LMP) plays an important role in many restructured wholesale power markets, the detailed derivation of LMPs as actually used in industry practice is not readily available. This lack of transparency greatly hinders the efforts of researchers to evaluate the performance of these markets. In this paper, different AC and DC optimal power flow (OPF) models are presented to help understand the derivation of LMPs. As a byproduct of this analysis, the paper provides a rigorous explanation of the basic LMP and LMP-decomposition formulas (neglecting real power losses) presented without derivation in the business practice manuals of the U.S. Midwest Independent System Operator (MISO).

Date: 2009-01-01
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Working Paper: Locational Marginal Pricing Basics for Restructured Wholesale Power Markets (2009)
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