Colorado electricity rates
144 residential tariffs from 55 utilities. Across the 11 filed since 2020, the median costs $0.1679 per kWh at 1,000 kWh a month once fixed charges are included — the cheapest $0.1012, the most expensive $0.1859.
$0.1679median $/kWh
55utilities
144tariffs on file
47%time-of-use
9%filed since 2020
Rate structures in Colorado
| Structure | Tariffs |
|---|---|
| Flat | 59 |
| Time-of-use | 47 |
| Time-of-use + tiered | 20 |
| Tiered | 18 |
Lowest effective rates at 1,000 kWh/month
Ranked across the 11 tariffs filed since 2020 — 9% of those on file here. Older filings are excluded because they are systematically below what utilities now charge; see methodology. Effective rate includes fixed charges, and availability restrictions may apply.
| Utility | Tariff | Structure | Filed | $/kWh | Annual |
|---|---|---|---|---|---|
| Black Hills/Colorado Elec.Utility Co. LP | Residential Service: RS-2 | Flat | 2020 | $0.1012 | $1,214.74 |
| Delta Montrose Electric Assn | Optional Residential Time Of Use (TOU11) | Time-of-use | 2020 | $0.1323 | $1,587.28 |
| City of Colorado Springs, Colorado (Utility Company) | Energy Wise Plus Time-of-Day Option (ETR-P) | Time-of-use | 2025 | $0.1419 | $1,702.75 |
| City of Colorado Springs, Colorado (Utility Company) | Energy Wise Standard Time of Day (ETR) | Time-of-use | 2025 | $0.1432 | $1,719.05 |
| Mountain Parks Electric, Inc | General Service Small (Residential) (Under 50 kW) | Flat | 2025 | $0.1652 | $1,982.64 |
| Mountain Parks Electric, Inc | General Service Whole House Time of Use (Residential) | Time-of-use | 2025 | $0.1679 | $2,014.34 |
| Public Service Co of Colorado | Residential Service (Schedule R) | Time-of-use | 2026 | $0.1696 | $2,035.24 |
| Public Service Co of Colorado | Residential General Service Opt-Out (Schedule R-OO) | Time-of-use | 2026 | $0.1717 | $2,059.88 |
| Black Hills/Colorado Elec.Utility Co. LP | Residential Service: RS-1 | Time-of-use + tiered | 2020 | $0.1735 | $2,081.72 |
| Public Service Co of Colorado | Residential Energy Time Of Use (Schedule RE-TOU) | Time-of-use | 2026 | $0.1755 | $2,106.15 |