Idaho Power Co. electricity rates
Investor-owned utility · Idaho · WECC region
Idaho Power Co. is a for-profit, investor-owned utility regulated by the state utility commission, serving 540,032 homes in Idaho. Its residential customers pay an average of 12.84¢/kWh including fixed and delivery charges, 29% less than the U.S. average.
Rate basis: EIA-861M monthly utility data, 12 months ending 2026-07.
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Idaho Power Co. bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $64.20 | $102.79 |
| 1,000 kWh | $128.40 | $190.58 |
| 1,500 kWh | $192.60 | $278.37 |
| 2,000 kWh | $256.80 | $366.16 |
*Schedule 3 - Master-Metered Mobile Home (effective 2025-02-01, $15.00/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
Idaho Power Co. residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Schedule 3 - Master-Metered Mobile Home | 2025-02-01 | $15.00 | 17.56¢ |
| Schedule 1 - Residential Servicetime-of-use | 2025-02-01 | $15.00 | 16.8¢ (12am–12am) — summer weekdays |
| Schedule 5 - Residential Time-of-Daytime-of-use | 2025-02-01 | $15.00 | 7.4¢ (12am–3pm, 11pm–12am) · 13.7¢ (3pm–7pm) · 26.4¢ (7pm–11pm) — summer weekdays |
| Schedule 5 - Residential Time-of-Daytime-of-use | 2025-02-01 | $15.00 | 12.9¢ (12am–3pm, 11pm–12am) · 19.2¢ (3pm–7pm) · 31.9¢ (7pm–11pm) — summer weekdays |
| Schedule 5: Residential Service Time of Usetime-of-use | 2019-05-31 | $5.00 | 13.5¢ (12am–3pm, 9pm–12am) · 13.6¢ (3pm–9pm) — summer weekdays |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
Idaho Power Co. rate history
2015–2025: +14% change in the average residential rate (10.30¢ → 11.78¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2025 | Idaho Power Co. | Idaho avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 171 | 310 | 266 |
| Outages per customer (SAIFI) | 1.03 | 1.15 | 1.34 |
| Average restoration time (CAIDI) | 2 hr 46 min | — | — |
| Outage minutes excluding major storms | 141 | 155 | 121 |
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across Idaho Power Co.'s counties, customers averaged 3 hr 2 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Valley | 2,056 | 71 | 8,046 | 2025-12-17 |
| Boise | 1,736 | 47 | 3,790 | 2025-10-26 |
| Idaho | 1,523 | 56 | 6,938 | 2025-02-05 |
| Power | 1,518 | 36 | 3,827 | 2025-10-14 |
| Camas | 1,278 | 7 | 1,921 | 2025-04-25 |
| Oneida | 831 | 23 | 2,914 | 2025-12-02 |
| Lemhi | 541 | 43 | 2,113 | 2025-06-12 |
| Blaine | 522 | 37 | 9,205 | 2025-06-11 |
| Lincoln | 421 | 30 | 848 | 2025-10-31 |
| Bingham | 280 | 66 | 6,637 | 2025-03-22 |
| Washington | 269 | 21 | 2,516 | 2025-01-09 |
| Owyhee | 259 | 22 | 3,332 | 2025-04-18 |
| Elmore | 236 | 40 | 1,635 | 2025-03-17 |
| Gem | 235 | 22 | 6,949 | 2025-12-25 |
| Adams | 217 | 12 | 1,872 | 2025-07-31 |
| Gooding | 212 | 30 | 3,038 | 2025-12-17 |
| Jerome | 182 | 52 | 1,656 | 2025-03-19 |
| Bannock | 149 | 45 | 8,491 | 2025-08-29 |
| Canyon | 114 | 38 | 8,033 | 2025-09-30 |
| Twin Falls | 91 | 33 | 8,381 | 2025-12-10 |
| Payette | 89 | 27 | 1,269 | 2025-12-31 |
| Ada | 66 | 38 | 10,197 | 2025-10-20 |
| Minidoka | 30 | 13 | 519 | 2025-12-17 |
| Cassia | 24 | 16 | 300 | 2025-03-24 |
Idaho Power Co. service area
Idaho Power Co. serves 24 counties in Idaho and 169 ZIP codes.
Ada, Adams, Bannock, Bingham, Blaine, Boise, Camas, Canyon, Cassia, Elmore, Gem, Gooding, Idaho, Jerome, Lemhi, Lincoln, Minidoka, Oneida, Owyhee, Payette, Power, Twin Falls, Valley, Washington
Cities: Boise, Meridian, Nampa, Idaho Falls, Pocatello, Caldwell, Twin Falls, Eagle Foothills, Eagle, Kuna, Chubbuck, Mountain Home, Blackfoot, Garden City, Jerome, Burley, Hailey, Star, Payette, Middleton, Emmett, Rupert, Weiser, Fruitland, Shelley, American Falls, Buhl, Kimberly, Gooding, Heyburn, Fort Hall, McCall, Salmon, Wendell, Ketchum, Filer, Homedale, Bellevue, Hidden Spring, Parma
Programs, smart meters & solar
| Smart meters (AMI) for homes | 100% |
| Customers with daily usage data online | 539,160 |
| Time-based rate programs | Time-of-use rates |
| Homes on time-based rates | 1,086 |
| Net-metered solar homes | 18,714 |
| Homes in demand response (e.g. thermostat rebates) | 16,069 |
| Residential efficiency incentives paid (2025) | $1,092,413 |
| Residential energy saved by programs | 39,869 MWh |
Idaho Power Co. at a glance
| Ownership | Investor-owned utility |
| Services | Generation, Transmission, Distribution, Wholesale Marketing |
| Commercial rate | 9.72¢/kWh |
| Industrial rate | 8.54¢/kWh |
| Retail revenue (2025) | $1,505,147,400 |
| Electricity sold (2025) | 15,504,369 MWh |
| Peak demand | 3,644 MW summer · 2,698 MW winter |
| Power from own generation | 67% (rest purchased) |
| Line losses | 5.9% |
| Balancing authority | IPCO |
| EIA utility ID | 9191 |
| Website | www.idahopower.com/energy-environment/ways-to-save/energy-efficiency-program-reports |
Other utilities in Idaho
Frequently asked questions
What is Idaho Power Co.'s electricity rate?
Idaho Power Co. residential customers pay an average of 12.84¢ per kWh, all charges included (EIA-861M monthly utility data, 12 months ending 2026-07). That's 2% above the Idaho average of 12.65¢ and 29% below the U.S. average.
What is the average Idaho Power Co. electric bill?
About $115 a month. The average Idaho Power Co. home uses 899 kWh a month. At 1,000 kWh the bill would be about $128.
How many customers does Idaho Power Co. have?
Idaho Power Co. serves 540,032 residential customers and 636,949 customers in total in Idaho, across 24 counties.
How reliable is Idaho Power Co.?
In 2025, the average Idaho Power Co. customer was without power for 2 hr 51 min (SAIDI) over 1.03 interruptions (SAIFI), including major storms. Excluding major event days it was 2 hr 21 min. The Idaho average was 5 hr 10 min and the U.S. average 4 hr 26 min.
Does Idaho Power Co. offer time-of-use rates?
Yes. The OpenEI rate database lists 4 time-of-use residential plans, including Schedule 1 - Residential Service. Running big appliances off-peak can cut their cost. Pick the plan in the calculator above to see by how much.
Does Idaho Power Co. offer net metering for solar?
Idaho Power Co. had 18,714 residential net-metered customers in 2025 with 148.9 MW of capacity. Estimate solar savings at this utility's rate.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with Idaho Power Co. before making decisions.