Rocky Mountain Power Proposed Utah Rate Decrease

The utility requested a $375 million reduction in variable energy charges for its Utah customers.

Updated on Oct. 6, 2026 in Utilities

Isometric editorial illustration of high-voltage transmission towers set against a stylized, mountainous desert landscape in muted colors. — Rocky Mountain Power has filed a proposal to reduce variable energy charges for its Utah customers by $375 million, citing lower fuel costs. AI Illustration. Upload story photo >

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Rocky Mountain Power filed a proposal for a $375 million decrease in variable energy charges for Utah customers. The filing, which seeks to adjust costs for supplying electricity, remains under review by state regulators.

Why it matters

The proposal follows a volatile period for energy costs, including a $472 million request in 2024. Rate adjustments are driven by fluctuating fuel prices and changes in the region's energy generation mix.

The utility is seeking a $375 million rate reduction, a sharp shift from the $472 million request in 2024. These figures reflect an evolving energy mix that saw coal usage drop from 94% in 2000 to 48% by 2025.

The players

Rocky Mountain Power

This is an electric utility company that provides power to customers across several western states including Utah.

Division of Public Utilities

This is the Utah state agency responsible for overseeing and regulating utility rates and service standards.

The details

The rate decrease is supported by lower natural gas prices, reduced costs for wholesale market purchases, and an increase in domestic coal supplies. While the mix is diversifying, coal production in the state still rose to 8.5 million short tons in 2025 from 7.4 million in 2024.

In 2000, Utah's energy mix consisted of 94% coal.
Rocky Mountain Power requested an EBA of $90.6 million in 2021.
In 2024, the utility requested a $472 million Energy Balancing Account.
The Utah interim committee met on September 16, 2026, regarding energy rates.
The Division of Public Utilities will review the proposed reduction until November 5, 2026.

Market Landscape

This proposal utilizes the Energy Balancing Account filing process to adjust for fuel cost volatility. The move reflects a broader industry shift toward incorporating lower-cost wholesale purchases into utility pricing models.

Customers in Utah may see a reduction in the variable portion of their monthly electric bills if the proposed decrease is approved. This adjustment could help offset the higher charges observed in recent years when fuel costs were significantly higher.

The takeaway

Utility rate structures remain highly sensitive to regional fuel production levels and wholesale market prices. Consumers should monitor regulatory reviews as shifting energy policies may influence electricity costs in the long term.