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December 18, 2025

Western Energy Imbalance Service (WEIS)

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Western Utilities to Explore Market Options
Major Western utilities plan to discuss coordinated market services and the possible formation of an organized market in an exploratory group.
SPP
SPP CEO Pitches WECC on Western Benefits
SPP CEO Barbara Sugg briefed WECC’s Board of Directors last week on the RTO’s efforts in the Western Interconnection and potential benefits for stakeholders there, including full membership in SPP’s proposed RTO West. SPP operates as a reliability coordinator in parts of the West and is helping the Northwest Power Pool develop a multistate resource …
Colorado Energy Office
Xcel Delays Joining EIM to Examine Options
Xcel's Public Service Company of Colorado decided to delay its entry into CAISO's Western Energy Imbalance Market in order to re-examine its decision.

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