WAPA-- Western Area Power Administration
Federal electric utility · California · #2,978 of 3,199 U.S. utilities by customers · EIA utility #27000
WAPA-- Western Area Power Administration is a federal electric utility serving 233 customers in Arizona, California, Colorado, Kansas, Minnesota, Montana. In 2025 it sold 5,062 gigawatt-hours of electricity for $189.42M in revenue, an average realized rate of 3.74¢ per kWh across all customer classes and — per kWh for residential customers. Its reported service territory covers 276 counties. EIA records its activities as: transmission, buying transmission, wholesale marketing.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Commercial | 133 | 2,903 | $123.12M | 4.24¢ | |
| Industrial | 99 | 2,138 | $65.93M | 3.08¢ | |
| Transportation | 1 | 21.2 | $368.70K | 1.74¢ | |
| Total | 233 | 5,062 | $189.42M | 3.74¢ |
Average realized rate = revenue divided by sales as reported on EIA Form 861. It blends fixed charges, demand charges and riders into one per-kWh figure; it is not the utility's tariff rate. Estimated residential bill assumes the average residential customer's actual 2025 usage (— kWh/month).
Operations by state
| State | Customers | Sales (GWh) | Residential rate |
|---|---|---|---|
| California | 94 | 3,542 | — |
| South Dakota | 25 | 350 | — |
| North Dakota | 24 | 199 | — |
| Arizona | 18 | 297 | — |
| Montana | 16 | 159 | — |
| Nebraska | 16 | 156 | — |
| Colorado | 15 | 67.4 | — |
| Utah | 6 | 34.9 | — |
| Wyoming | 6 | 41.2 | — |
| Minnesota | 4 | 55.4 | — |
| New Mexico | 4 | 134 | — |
| Nevada | 3 | 26.6 | — |
| Kansas | 2 | 0.3 | — |
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 220 | 4,445 | $138.03M | — |
| 2022 | 221 | 3,966 | $152.57M | — |
| 2023 | 221 | 4,878 | $175.10M | — |
| 2024 | 223 | 5,185 | $175.97M | — |
| 2025 | 233 | 5,062 | $189.42M | — |
Energy supply (2025)
Net generation: 23,210 GWh
Wholesale power purchased: 6,038 GWh
Winter peak demand: 5,020 MW
Energy losses: 25.4% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 0.0% of 243 meters
Counties served
Adair, IAAdams, COAdams, NDAlameda, CAAlbany, WYAntelope, NEApache, AZAudubon, IAAurora, SDBanner, NEBarnes, NDBeadle, SDBennett, SDBenson, NDBig Horn, MTBig Horn, WYBillings, NDBlaine, MTBon Homme, SDBoone, NEBoulder, COBowman, NDBox Butte, NEBoyd, NEBrookings, SDBroomfield, COBrown, SDBrule, SDBuffalo, SDBurleigh, NDButte, CAButte, SDCalaveras, CACampbell, SDCarbon, MTCarbon, WYCascade, MTCass, IACass, NDCedar, NEChaffee, COCharles Mix, SDCherokee, IACheyenne, NEChippewa, MNChouteau, MTClark, NVClark, SDClay, IAClay, MNClay, SDClear Creek, COCochise, AZCoconino, AZCodington, SDColusa, CAContra Costa, CAConverse, WYCrawford, IACuster, CO + 216 more counties
Other large utilities in California
- Southern California Edison Co - 3,735,576 customers, residential 31.48¢
- Pacific Gas & Electric Co. - 2,008,682 customers, residential 37.52¢
- Los Angeles Department of Water & Power - 1,516,453 customers, residential 26.48¢
- San Diego Community Power - 939,547 customers, residential 15.76¢
- Clean Power Alliance of Southern Califor - 819,661 customers, residential 13.95¢
- Sunrun Inc. - 796,359 customers, residential 26.53¢
- Ava Community Energy - 724,515 customers, residential 14.48¢
- Sacramento Municipal Util Dist - 675,491 customers, residential 18.93¢
All California utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #27000 in the EIA frame.