BPA’s Exit from WEIM Necessary for Markets+ Preparation, Staff Says
BPA's Bonneville Dam | U.S. Army Corps of Engineers
Mar 15, 2026
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The Bonneville Power Administration’s planned departure from the Western Energy Imbalance Market has prompted questions about how the agency will handle the yearlong period before it joins SPP’s Markets+.
Ancillary ServicesEnergy MarketMarkets+ReservesTransmission OperationsWestern Energy Imbalance Market (WEIM)
