NorthWestern Energy to acquire Avista's interest in Colstrip coal plant

Avista Corporation will turn over its 222 MW interest in the Colstrip coal-fired power plant to NorthWestern Energy, effective December 31, 2025. Avista retains remediation obligations and enters a vote-sharing agreement.

“This transaction is the result of several years of work and discussions among all owners of Colstrip, through which we have looked for commercial solutions that would allow Avista and others to exit Colstrip by the end of 2025.”investor.avistacorp.com

• 1 source
• investor.avistacorp.comAvista and NorthWestern Energy enter into strategic transaction of Colstrip, Montana assets | Avista CorporationJan 17, 2023

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