Public Service Co of Colorado
Investor Owned electric utility · Colorado · #19 of 3,199 U.S. utilities by customers · EIA utility #15466
Public Service Co of Colorado is a investor owned electric utility serving 1,605,246 customers in Colorado. In 2025 it sold 28,263 gigawatt-hours of electricity for $3.59B in revenue, an average realized rate of 12.72¢ per kWh across all customer classes and 15.90¢ per kWh for residential customers. Its reported service territory covers 56 counties. EIA records its activities as: generation, transmission, buying transmission, distribution, wholesale marketing, bundled.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 1,379,910 | 9,674 | $1.54B | 15.90¢ | |
| Commercial | 225,020 | 12,495 | $1.56B | 12.49¢ | |
| Industrial | 315 | 6,006 | $487.61M | 8.12¢ | |
| Transportation | 1 | 87.5 | $8.39M | 9.60¢ | |
| Total | 1,605,246 | 28,263 | $3.59B | 12.72¢ |
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 (584 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 1,535,755 | 28,933 | $3.05B | 12.45¢ |
| 2022 | 1,551,731 | 28,794 | $3.36B | 14.13¢ |
| 2023 | 1,569,461 | 28,040 | $3.32B | 14.34¢ |
| 2024 | 1,589,710 | 28,407 | $3.44B | 15.05¢ |
| 2025 | 1,605,246 | 28,263 | $3.59B | 15.90¢ |
Reliability (2025)
Average outage time (SAIDI): 360 minutes per customer per year
Average outages (SAIFI): 1.58 per customer
Average restoration time (CAIDI): 228 minutes
As reported for Colorado under the IEEE standard, with major event days included where the standard reports them. Lower is better; see the reliability rankings.
Energy supply (2025)
Net generation: 21,320 GWh
Wholesale power purchased: 16,498 GWh
Winter peak demand: 5,535 MW
Energy losses: 3.1% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 98.9% of 1,612,253 meters
Customer-sited generation (net metering): 124,990 installations, 989.4 MW of capacity
Counties served
Adams, COAlamosa, COArapahoe, COArchuleta, COBaca, COBent, COBoulder, COChaffee, COClear Creek, COConejos, COCostilla, COCrowley, COCuster, CODelta, CODenver, CODolores, CODouglas, COEagle, COEl Paso, COElbert, COFremont, COGarfield, COGilpin, COGrand, COGunnison, COHinsdale, COHuerfano, COJefferson, COKiowa, COLa Plata, COLake, COLarimer, COLas Animas, COLogan, COMesa, COMineral, COMoffat, COMontezuma, COMontrose, COMorgan, COOtero, COOuray, COPark, COPitkin, COProwers, COPueblo, CORio Blanco, CORio Grande, CORoutt, COSaguache, COSan Miguel, COSummit, COTeller, COWashington, COWeld, COYuma, CO
Other large utilities in Colorado
- City of Colorado Springs - (CO) - 264,106 customers, residential 15.43¢
- CORE Electric Cooperative - 182,993 customers, residential 15.62¢
- United Power, Inc - 115,479 customers, residential 16.50¢
- Black Hills Colorado Electric, LLC - 111,502 customers, residential 18.71¢
- City of Fort Collins - (CO) - 80,929 customers, residential 14.34¢
- Mountain View Elec Assn, Inc - 65,946 customers, residential 15.65¢
- Holy Cross Electric Assn, Inc - 61,834 customers, residential 12.45¢
- Poudre Valley REA, Inc - 56,750 customers, residential 12.47¢
All Colorado utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #15466 in the EIA frame.