Green River Star -

ROCK SPRINGS (Wyoming News Exchange) — The Wyoming Public Service Commission approved new rates for Rocky Mountain Power customers, following a review that began in 2020.

Overall, customer bills will go down an average of 3.5% as the remaining benefits of the federal Tax Cuts and Jobs Act of 2017 are passed through to customers over the next three years, according to a press release.

In a separate decision, the commission approved a decrease of 2.4% in the company’s annual energy cost adjustment mechanism on an interim basis.

The energy cost adjustment tracks the difference between fo...