BPA, Tucson Electric Power Enter Western EIM - RTO Insider

December 23, 2024

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BPA, Tucson Electric Power Enter Western EIM

Northwest Assets Spell Huge Expansion for the Market

Transmission line in Umatilla County, Ore.

Transmission line in Umatilla County, Ore. | © RTO Insider LLC

May 4, 2022

The Western EIM took on BPA and Tucson Electric Power as new participants, marking the market’s largest single expansion since its founding.

Energy Market FERC & Federal Hydropower Onshore Wind Public Policy Transmission Operations Western Energy Imbalance Market (WEIM)

KeywordsArizona Public Service (APS)Bonneville Power Administration (BPA)California Independent System Operator (CAISO)California-Oregon Intertie Elliot Mainzer Federal Energy Regulatory Commission (FERC)Pacific DC Intertie (PDCI)Salt River Project (SRP)Tucson Electric Power (TEP)Western Energy Imbalance Market (WEIM)

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