NorthWestern Energy

NorthWestern Energy for the second time in four years says it will adopt Puget Sound Energy’s share in the Colstrip plant as the Washington utility moves away from coal generation.

Owners of the Colstrip coal-fired power plant say new environmental regulations could shorten the plant’s life by a decade.

Like other electric utilities in the U.S. west, NorthWestern Energy staff says insurance costs are increasing.

Financial assistance programs in south central Montana say they expect a busy few months ahead as more residents receive their utility bills.

Laurel residents and environmental groups challenged the zoning of the property where NorthWestern Energy is building a natural gas plant.

The fee responds to one of the costs included in the utility's recent rate case

A handful of groups are asking regulators to take another look at rate changes for natural gas and electric customers of the state’s largest utility.

The Montana Public Service Commission signed off on a settlement reached between NorthWestern Energy and intervenors for a bump in natural gas and electric fees.

NorthWestern Energy is requesting that Montana electric utility regulators to take a stand against a proposed rule that would increase restrictions for toxic air pollutants like mercury at coal and oil power plants.

Montana electric utility regulators are holding hearings this week to consider an increase to NorthWestern Energy customer fees.