Rocky Mountain Power rates and bills in Utah

Rocky Mountain Power's price per kWh, by period

Rocky Mountain Power is the name PacifiCorp uses in Utah, and its lines reach 79.6% of Utah's residential customers: 969,037¹ homes in 2025. What they paid per kWh depends on the period asked about:

• calendar 2025 (EIA-861, final): 13.52¢ per kWh¹;
• the 12 months September 2025 to August 2026 (EIA-861M, 2026 months preliminary): 13.68¢ per kWh;
• August 2026³ alone (preliminary): 13.81¢ per kWh, −4.3%² against August 2025.

Each is an average price: residential revenue divided by residential kWh, so the monthly customer charge, energy charges and adjustment riders are all spread across every kWh, while most taxes are left out. It is not a line in the tariff, and a household that uses little electricity pays more per kWh than this average because its fixed charge is spread over fewer kWh. Among the 177 utilities with 100,000 or more residential customers, the median 2025 average was 15.07¢ per kWh; national investor-owned utilities averaged 17.78¢ per kWh¹.

Rocky Mountain PowerUtah average, all providers

Source: EIA-861M monthly sales and revenue by utility; EIA, Electric Power Monthly / EIA-861M sales and revenue by state. Residential revenue divided by kWh in each month, as reported to EIA's monthly survey (EIA-861M; months since January 2026 preliminary).

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Month	Rocky Mountain Power (¢/kWh)	kWh per customer	Bill per customer
January 2025	12.31¢	786	$96.79
February 2025	12.64¢	631	$79.82
March 2025	12.64¢	632	$79.85
April 2025	12.85¢	553	$71.06
May 2025	12.92¢	656	$84.73
June 2025	13.63¢	931	$126.85
July 2025	14.19¢	1,088	$154.44
August 2025	14.43¢	1,032	$148.90
September 2025	15.12¢	730	$110.35
October 2025	14.27¢	578	$82.51
November 2025	13.13¢	622	$81.69
December 2025	13.11¢	708	$92.80
January 2026	13.05¢	743	$96.96
February 2026	13.62¢	598	$81.42
March 2026	13.53¢	599	$81.05
April 2026	13.73¢	551	$75.68
May 2026	13.41¢	637	$85.50
June 2026	13.91¢	872	$121.21
July 2026	13.49¢	1,308	$176.54
August 2026	13.81¢	1,194	$164.81

2024 to 2025: the price rose more than the bill

The residential average went from 12.52¢ per kWh in 2024 to 13.52¢ per kWh in 2025, an increase of 8.0%. The residential average of all Utah utilities, city-owned systems and cooperatives included, rose 6.5%⁵ over the same years. The average monthly bill grew less than the price, from $94.88 to $100.84 (+6.3%), because use per home slipped from 758 kWh⁴ to 746 kWh¹ a month.

EIA's monthly survey carries the series into 2026. The 12-month average to August 2026 was 13.68¢ per kWh, against 13.52¢ per kWh¹ for calendar 2025, and the August 2026³ average changed −4.3%² from August 2025. Single months are preliminary and move with the season, so the 12-month figure is the steadier guide.

Rocky Mountain Power's Utah rates are set by the Public Service Commission of Utah, which decides general rate cases and the utility's other rate filings in public dockets. The commission's docket list, not EIA, is where to check a pending or newly approved increase; our guide to rate increases explains how those decisions reach bills.

Summer use sets the high bill

Over September 2025 to August 2026, average use per home ran from 551 kWh in April 2026 to 1,308 kWh in July 2026, and the average bill in those two months from $75.68 to $176.54. Averaged across those 12 months, the bill was $104.30 for 762 kWh² a month. A household budgeting on the annual average will see summer bills well above it.

730Sep

578Oct

622Nov

708Dec

743Jan

598Feb

599Mar

551Apr

637May

872Jun

1,308Jul

1,194Aug

Source: EIA-861M monthly sales and revenue by utility. kWh per residential customer in each month (EIA-861M; months since January 2026 preliminary). The table adds the average bill and price for the month.

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Month	kWh per customer	Bill per customer	¢/kWh
September 2025	730	$110.35	15.12¢
October 2025	578	$82.51	14.27¢
November 2025	622	$81.69	13.13¢
December 2025	708	$92.80	13.11¢
January 2026	743	$96.96	13.05¢
February 2026	598	$81.42	13.62¢
March 2026	599	$81.05	13.53¢
April 2026	551	$75.68	13.73¢
May 2026	637	$85.50	13.41¢
June 2026	872	$121.21	13.91¢
July 2026	1,308	$176.54	13.49¢
August 2026	1,194	$164.81	13.81¢

Utah's city utilities and PacifiCorp's other states

Inside Utah, Rocky Mountain Power's 2025 average of 13.52¢ per kWh ranked 2nd highest of 13 and was 3.8% above the Utah average; Utah's public power utilities, mostly city-owned systems such as Provo City Corp and City of St George, averaged 12.01¢ per kWh, and its cooperatives 9.70¢ per kWh. Among utilities with 10,000 or more homes, the highest average was Heber Light & Power Company's (14.40¢ per kWh) and the lowest Dixie Escalante R E A's (9.17¢ per kWh¹). A home cannot move between them: Utah has no retail choice, and the address decides the utility. Rocky Mountain Power reports customers in 26 Utah counties; in 22⁶ of them at least one other utility also reports service, so the utilities' own territory maps, not the city or county name, settle who serves a street.

PacifiCorp also serves homes in Oregon, Washington, Wyoming. Of the company's 4 state utilities, the lowest 2025 residential average was Rocky Mountain Power (Utah)'s and the highest Pacific Power (Oregon)'s. Rocky Mountain Power in Wyoming averaged 15.13¢ per kWh, Pacific Power in Oregon 15.18¢ per kWh and Pacific Power in Washington 14.33¢ per kWh¹. Each state's commission sets its own rates, so prices differ even within one company. The PacifiCorp page compares them in detail.

Rocky Mountain Power (UT)13.52¢

Pacific Power (WA)14.33¢

Rocky Mountain Power (WY)15.13¢

Pacific Power (OR)15.18¢

Source: EIA-861 annual electric power industry report, 2025 final. EIA-861 2025 final. Average revenue per kWh is all charges divided by kWh; it is not a tariff rate.

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Utility	average residential price (bundled customers)
Rocky Mountain Power (UT)	13.52¢
Pacific Power (WA)	14.33¢
Rocky Mountain Power (WY)	15.13¢
Pacific Power (OR)	15.18¢

Many solar roofs, few time-of-use customers

Rooftop solar is common on Rocky Mountain Power's Utah system. EIA counted 78,575 net-metered residential installations in 2025, with 571.4 megawatts of capacity, or 81.1 per 1,000 residential customers. The national figure was 38.1 per 1,000, and the same company's Wyoming customers had 10.3⁷. The net metering guide explains how exported solar power is credited.

Time-based pricing is the opposite case. Advanced meters, which record use by the hour, made up 97.6% of residential meters in 2025, but only 2,649 homes (0.3%) were enrolled in a time-of-use rate, against 11.3%⁷ of homes nationally on time-varying rates. The hours and prices of the time-of-use option are in the utility's rate schedules; the time-of-use guide shows how such plans change a bill.

Outage minutes and interruptions

Measured under the IEEE 1366 standard, Rocky Mountain Power's Utah customers averaged 118 minutes without power in 2025 including major events, more than the Utah average of 116 minutes, and 102 minutes excluding major event days, where the statewide figure was 90 minutes. Customers had 0.90 interruptions on average (Utah: 0.67). Utah as a whole ranked tied for 5th lowest⁸ among the states on outage minutes.

Commercial and industrial accounts

In 2025, 102,682 commercial accounts paid an average of 9.96¢ per kWh and 7,897 industrial accounts 8.51¢ per kWh; across all 1,079,617 customers the average was 10.71¢ per kWh. The average commercial bill was $959.88¹ a month, against $827.31⁹ for all Utah commercial customers. For prices, bills and generation across the whole state, see electricity in Utah.

Rocky Mountain Power onlyRocky Mountain Power and other utilitiesOther utilities

Source: EIA-861 2025, service territory; Census Bureau, Cartographic boundary file, counties. EIA-861 2025 service territory: 26 counties. Counts whole counties even where the utility serves only part of one; check the utility's own service-area map for an address.

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County	Other utilities reporting service
Beaver County	Beaver City Corporation
Box Elder County	Brigham City Corporation, Raft Rural Electric Cooperative
Cache County	City of Logan, Hyrum City Corporation
Carbon County	Price Municipal Corporation, City of Helper
Davis County	City of Bountiful, Kaysville City Corporation
Duchesne County	Moon Lake Electric Association
Emery County	none
Garfield County	Garkane Energy Cooperative, Ticaboo Electric Improvement District
Grand County	none
Iron County	Dixie Escalante R E A, Garkane Energy Cooperative, Parowan City Corporation, Town of Paragonah
Juab County	Nephi City Corporation, Levan Town Corporation, Mt Wheeler Power
Millard County	Dixie Escalante R E A, Fillmore City Corporation, Kanosh Town Corporation, Town of Oak City, Town of Holden, Mt Wheeler Power, Meadow Town Corporation
Morgan County	Morgan City
Piute County	Garkane Energy Cooperative
Rich County	none
Salt Lake County	City of Murray, WAPA-- Western Area Power Administration
San Juan County	Navajo Tribal Utility Authority, City of Blanding, Empire Electric Association, WAPA-- Western Area Power Administration
Sanpete County	City of Mt Pleasant, City of Ephraim, City of Manti, Fairview City Corporation, Spring City Corporation
Sevier County	Garkane Energy Cooperative, City of Monroe
Summit County	Bridger Valley Electric Association
Tooele County	Wells Rural Electric Co, Mt Wheeler Power
Uintah County	Moon Lake Electric Association, WAPA-- Western Area Power Administration
Utah County	Provo City Corp, Lehi City Corporation, Spanish Fork City Corporation, City of Springville, Payson City Corporation, Salem City Corporation, Strawberry Electric Serv Dist
Wasatch County	Heber Light & Power Company, Moon Lake Electric Association
Washington County	City of St George, Dixie Escalante R E A, City of Washington, Garkane Energy Cooperative, Hurricane City Power, City of Santa Clara, City of Enterprise
Weber County	none