by Anne Hedges, September 19, 2017
The Colstrip plant will only be “useful” until 2027. That’s according to an agreement filed last week in the Puget Sound Energy (Puget) rate case in Washington. In the agreement, the parties agreed that the Colstrip plant only had 10 years remaining of useful life for Puget. In the utility world, that’s a big deal. The Washington utilities commission will ultimately decide whether to accept the agreement, but the agreement spells the beginning of the end for the plant.