CORE Electric Cooperative Electricity Rates and Average Bill (Colorado)
Data through August 2026 (the latest month EIA has published) · Updated October 31, 2026
As of August 2026, CORE Electric Cooperative's residential customers in Colorado paid an average effective rate of 16.95¢/kWh with an average monthly bill of $180.84, per EIA Form 861-M data. That rate is 0.2¢ below the Colorado average of 17.17¢/kWh; the U.S. average is 18.16¢/kWh.
Rate trend vs the Colorado average
View this chart as a table (last 12 months)
| Month | Rate (¢/kWh) | Avg bill ($/mo) | Avg usage (kWh/mo) |
|---|---|---|---|
| September 2025 | 16.69 | 123.43 | 740 |
| October 2025 | 16.72 | 118.86 | 711 |
| November 2025 | 16.43 | 125.07 | 761 |
| December 2025 | 16.93 | 152.69 | 902 |
| January 2026 | 16.52 | 154.06 | 932 |
| February 2026 | 16.90 | 127.71 | 755 |
| March 2026 | 18.02 | 136.80 | 759 |
| April 2026 | 17.56 | 121.95 | 694 |
| May 2026 | 17.91 | 134.43 | 750 |
| June 2026 | 18.00 | 161.48 | 897 |
| July 2026 | 16.62 | 201.05 | 1210 |
| August 2026 | 16.95 | 180.84 | 1067 |
CORE Electric Cooperative vs Colorado vs the U.S.
| CORE Electric Cooperative | Colorado | U.S. average | |
|---|---|---|---|
| Rate (August 2026) | 16.95¢/kWh | 17.17¢/kWh | 18.16¢/kWh |
| Average monthly bill | $180.84 | $167.04 | $209.23 |
| Average monthly usage | 1067 kWh | 973 kWh | 1152 kWh |
| Rate change, 1 year | +6.3% | +5.9% | +3.4% |
Estimate a bill at CORE Electric Cooperative rates
Worked example: 1,000 kWh at CORE Electric Cooperative's average effective rate of 16.95¢/kWh is about $169.50. The utility's actual average usage is 1067 kWh/month, which produces the $180.84 average bill. This is an all-in average (energy, delivery, fixed charges, riders); your tariff's marginal price will differ.
See the full Colorado rate trend, look up another utility by ZIP code, or read why electric bills are rising.
Source: EIA Form 861-M (monthly utility-level sales to ultimate customers, residential), published with roughly a two-month lag. Rate = revenue ÷ sales; bill = revenue ÷ customers. Months failing basic sanity screens are excluded. See methodology.