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December 5, 2025

Black Hills Energy

NorthWestern Energy
Black Hills-NorthWestern Merger Could Reshape Western Market Map

The proposed merger between Black Hills Corp. and NorthWestern Energy likely will reshape the map in the competition between CAISO’s Extended Day-Ahead Market and SPP’s Markets+ — but it’s still too early to know where new boundaries will be drawn.

Wyoming Business Council
Pathways ‘Step 2’ Plan Elicits Praise, Concerns — and Advice
A workshop on the West-Wide Governance Pathways Initiative has sparked praise for the proposal as well as concerns, including uneasiness over plans to share staffing between CAISO and a new regional organization that would govern Western electricity markets.
Idaho Power
4 Utilities Nearly Compliant on Order 2023 Rule Changes
FERC largely approved Order 2023 compliance filings for four utilities in the West and Texas, directing them to submit further compliance filings within 60 days.
Black Hills Energy
CAISO’s WEIM Plucks Black Hills Utilities from SPP’s WEIS
CAISO scored a geographically small but symbolically significant victory with the announcement that two Black Hills Energy subsidiaries will move to the ISO’s Western Energy Imbalance Market.

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