Colstrip coal-fired unit down for at least 6 months

Colstrip coal-fired Unit 4 down for repairs six months Montana PPL Montana NorthWestern Energy

Unit 4 at the 2,000 MW Colstrip coal-fired power plant in Montana will be under repairs for at least six months, according to NorthWestern Energy and PPL Montana. The remaining units continue to operate at full power.

The 740 MW unit tripped offline on July 1. NorthWestern Energy, which owns a 30 percent share in the unit along with four other companies, said damage was apparent to the stator or rotor assembly and was consistent with a ground fault. PPL Montana, which operates the unit, developed the six-month repair schedule.

Under the companies' Reciprocal Sharing Agreement, each party equally shares costs to operate, maintain and repair the unit as well as its allocation of the output from operating units. The repairs are expected to cost $30 million, and NorthWestern’s share will be about $4.5 million.

PPL has property damage insurance and may file a damage claim. If they do, the deductible would be $2.5 million. NorthWestern Energy has already purchased replacement power.

Read more O&M news

Did You Like this Article? Get All the Energy Industry News Delivered to Your Inbox

Subscribe to an email newsletter today at no cost and receive the latest news and information.

 Subscribe Now

Whitepapers

Maximizing Operational Excellence

In a recent survey conducted by PennEnergy Research, 70% of surveyed energy industry professional...

Leveraging the Power of Information in the Energy Industry

Information Governance is about more than compliance. It’s about using your information to drive ...

Reduce Engineering Project Complexity

Engineering document management presents unique and complex challenges. A solution based in Enter...

Revolutionizing Asset Management in the Electric Power Industry

With the arrival of the Industrial Internet of Things, data is growing and becoming more accessib...