Duke Energy Carolinas, LLC Electricity Rates and Average Bill (North Carolina)
Data through July 2026 (the latest month EIA has published) · Updated October 14, 2026
As of July 2026, Duke Energy Carolinas, LLC's residential customers in North Carolina paid an average effective rate of 14.82¢/kWh with an average monthly bill of $187.40, per EIA Form 861-M data. That rate is 0.3¢ below the North Carolina average of 15.16¢/kWh; the U.S. average is 18.31¢/kWh.
Rate trend vs the North Carolina average
View this chart as a table (last 12 months)
| Month | Rate (¢/kWh) | Avg bill ($/mo) | Avg usage (kWh/mo) |
|---|---|---|---|
| August 2025 | 13.95 | 139.71 | 1002 |
| September 2025 | 14.46 | 115.45 | 799 |
| October 2025 | 14.51 | 104.61 | 721 |
| November 2025 | 13.77 | 116.69 | 847 |
| December 2025 | 12.60 | 156.06 | 1239 |
| January 2026 | 12.94 | 178.56 | 1380 |
| February 2026 | 14.12 | 157.06 | 1112 |
| March 2026 | 13.77 | 111.05 | 807 |
| April 2026 | 14.83 | 107.21 | 723 |
| May 2026 | 14.35 | 119.26 | 831 |
| June 2026 | 14.06 | 151.57 | 1078 |
| July 2026 | 14.82 | 187.40 | 1264 |
Duke Energy Carolinas, LLC vs North Carolina vs the U.S.
| Duke Energy Carolinas, LLC | North Carolina | U.S. average | |
|---|---|---|---|
| Rate (July 2026) | 14.82¢/kWh | 15.16¢/kWh | 18.31¢/kWh |
| Average monthly bill | $187.40 | $202.80 | $212.44 |
| Average monthly usage | 1264 kWh | 1338 kWh | 1160 kWh |
| Rate change, 1 year | +16.5% | +13.4% | +4.9% |
Estimate a bill at Duke Energy Carolinas, LLC rates
Worked example: 1,000 kWh at Duke Energy Carolinas, LLC's average effective rate of 14.82¢/kWh is about $148.20. The utility's actual average usage is 1264 kWh/month, which produces the $187.40 average bill. This is an all-in average (energy, delivery, fixed charges, riders); your tariff's marginal price will differ.
See the full North Carolina 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.