Price decrease proposed for Idaho customers

March 31, 2021

BOISE, Idaho — Rocky Mountain Power proposes a 1.1% decrease overall for customers in its 2021 annual energy cost adjustment. Typical residential customers using 800 kilowatt-hours per month would see a decrease of approximately $9.00 on their annual electricity bill.

“Rocky Mountain Power is committed to bringing the best value to our customers for their hard-earned dollars,” said Tim Solomon, regional business manager for Rocky Mountain Power in Rexburg. “As a provider of one of the most essential public services, we’re pleased to pass on to customers the lower costs of providing service. This annual adjustment continues to ensure Rocky Mountain Power customers always pay some of the lowest prices in the nation for the energy they need.”

The annual energy cost adjustment mechanism is designed to track the difference between the company’s actual expenses for fuel and electricity purchased from the wholesale market, against the amount being collected from customers through current rates. If actual costs are lower, the amount is returned to customers on their monthly bill. During the past year the company’s energy-related expenses decreased by $7.8 million. Pending commission approval, the changes would take effect June 1, 2021 with the following impact on each rate schedule:

  • Residential Schedule 1 – 0.8% decrease
  • Residential Schedule 36 – 0.9% decrease
  • General Service Schedule 6 – 1.1% decrease
  • General Service Schedule 9 – 1.2% decrease
  • Irrigation Service Schedule 10 – 1.0% decrease
  • Commercial & Industrial Heating Schedule 19 – 1.0% decrease
  • General Service Schedule 23 – 0.9% decrease
  • General Service Schedule 35 – 1.3% decrease
  • Public Street Lighting – 0.4% decrease
  • Tariff Contract 400 – 1.3% decrease
  • Tariff Contract 401 – 1.3% decrease

The public will have an opportunity to comment on the proposal as the commission studies the company’s request. The commission must approve the proposed changes before they can take effect. A copy of the company’s application is available for public review on the commission’s website,, under Case No. PAC-E-21-09. Customers may also subscribe to the commission’s RSS feed to receive periodic updates via email. The request is also available at the company’s offices in Rexburg, Preston, Shelley and Montpelier, although due to COVID-19 pandemic restrictions, the company urges customers to utilize online resources:

Idaho Public Utilities Commission

11331 W. Chinden Blvd. Building 8, Suite 201-A

Boise, ID 83714

Rocky Mountain Power offices

Rexburg – 127 East Main

Preston – 509 S. 2nd East

Shelley – 852 E. 1400 North

Montpelier – 24852 U.S. Hwy 89