States › North Carolina › Duke Energy Carolinas, LLC
investor-owned utility · EIA utility 5416
Duke Energy Carolinas, LLC
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Annual figures: Form EIA-861 for 2024, final release. Monthly state figures run to July 2026.
In its Form EIA-861 filing for 2024, Duke Energy Carolinas, LLC, an investor-owned utility, reported 2,487,958 residential customers in North Carolina and 1 other state, with a service territory that touches 63 counties.
Its average residential price that year was 13.95¢ per kilowatthour, about the same as the North Carolina average of 14.13¢ and 15% below the US average of 16.48¢. The figure is residential revenue divided by residential sales, so it folds in fixed charges, riders and every rate schedule the utility bills under.
That works out to an average residential bill of $138.61 a month on average use of 994 kWh a month. Across North Carolina the average bill was $143.50 on 1,015 kWh, so a bill gap reflects how much power households use as well as what each kilowatthour costs.
For reliability it reported a SAIDI of 3,063.1 minutes per customer with major event days included and 170.7 minutes with them excluded, calculated under IEEE 1366 standard. The median among North Carolina utilities reporting was 154.9 minutes with major event days; this utility's figure is 1877% above that median.
The average price is up 31.4% on 2019, against up 23.7% for North Carolina as a whole, and up 15.6% on 2023. EIA's early release for 2025, which has not been fully edited, shows 13.41¢.
Compared with North Carolina, the US and other investor-owned utilities
| Measure, 2024 | This utility | Investor-owned utilities, US median | North Carolina | United States |
|---|---|---|---|---|
| Average residential price per kWh | 13.95¢ | 16.17¢ | 14.13¢ | 16.48¢ |
| Average monthly residential bill | $138.61 | $131.47 | $143.50 | $142.26 |
| Average monthly use, kWh | 994 | 787 | 1,015 | 863 |
| Residential price change, 1 year | +15.6% | — | +9.3% | +3.0% |
| Residential price change, 5 years | +31.4% | — | +23.7% | +26.7% |
| SAIDI, all events (minutes) | 3,063.1 | 278.7 | 154.9 median | 184.5 median |
| SAIDI, without major event days | 170.7 | 106.5 | 83.1 median | 99.8 median |
State and US prices, bills and use are EIA's own averages over every customer. The ownership column and the reliability columns are medians across utilities with at least 1,000 residential customers, computed on this site from the final 2024 file. Among the 3 filings by investor-owned utilities in North Carolina, the median price was 13.94¢. In North Carolina this utility's price ranks 19 of 53, counting from the highest.
Average price by year
Duke Energy Carolinas, LLCNorth Carolina averageUS average
Year by year
| Year | ¢ per kWh | North Carolina ¢ | Monthly bill | kWh a month | Residential customers | All sales |
|---|---|---|---|---|---|---|
| 2025 early release | 13.41¢ | 14.02¢ | $135.25 | 1,009 | 2,543,170 | 81.4 TWh |
| 2024 | 13.95¢ | 14.13¢ | $138.61 | 994 | 2,487,958 | 80 TWh |
| 2023 | 12.07¢ | 12.93¢ | $116.36 | 964 | 2,428,460 | 77.8 TWh |
| 2022 | 10.70¢ | 11.62¢ | $113.07 | 1,056 | 2,378,411 | 81.3 TWh |
| 2021 | 10.47¢ | 11.32¢ | $107.44 | 1,027 | 2,350,215 | 78.6 TWh |
| 2020 | 10.63¢ | 11.38¢ | $108.14 | 1,018 | 2,306,163 | 75.7 TWh |
| 2019 | 10.62¢ | 11.42¢ | $112.48 | 1,059 | 2,260,939 | 79.9 TWh |
| 2018 | 10.30¢ | 11.09¢ | $114.56 | 1,112 | 2,215,198 | 81 TWh |
| 2017 | 10.27¢ | 10.94¢ | $104.81 | 1,021 | 2,181,646 | 77.4 TWh |
| 2016 | 10.56¢ | 11.03¢ | $116.24 | 1,101 | 2,148,432 | 79.5 TWh |
| 2015 | 10.73¢ | 11.28¢ | $116.65 | 1,087 | 2,117,482 | 78.9 TWh |
| 2014 | 10.56¢ | 11.10¢ | $117.32 | 1,111 | 2,089,299 | 78 TWh |
| 2013 | 10.05¢ | 10.97¢ | $108.99 | 1,084 | 2,068,329 | 75.9 TWh |
Bundled residential service only in the price, bill and use columns. Bill = residential revenue ÷ customers ÷ 12; use = residential sales ÷ customers ÷ 12. EIA describes its early release as not fully edited; it is shown for this utility alone and enters no average, median or rank on this site.
Month by month
Duke Energy Carolinas, LLC (NC)North Carolina average
Sales by sector, 2024
| Sector | Customers | Sales | Share of sales | Revenue | ¢ per kWh, bundled |
|---|---|---|---|---|---|
| Residential | 2,487,958 | 29.7 TWh | 37% | $4,138,376,600 | 13.95¢ |
| Commercial | 413,160 | 30.6 TWh | 38% | $3,060,153,900 | 10.00¢ |
| Industrial | 5,946 | 19.7 TWh | 25% | $1,487,411,100 | 7.54¢ |
| Transportation | 1 | 12.4 GWh | 0% | $1,273,500 | — |
Customers, sales and revenue count every service type the utility reported (bundled, energy-only and delivery-only). The price column uses bundled service alone, because part-bill revenue would understate it. Sources of energy: 96.6 TWh in total, of which 88% was its own net generation and 12 TWh was bought wholesale; summer peak demand 18,322 MW.
By state
| State | Residential customers | ¢ per kWh | State average ¢ | Monthly bill | SAIDI, all events |
|---|---|---|---|---|---|
| North Carolina | 1,919,372 | 13.94¢ | 14.13¢ | $137.16 | 1,626.0 |
| South Carolina | 568,586 | 13.99¢ | 14.23¢ | $143.51 | 7,803.7 |
Reliability
Minutes of sustained interruption per customer in 2024, as the utility reported them under IEEE 1366 standard. SAIFI: 2.21 interruptions per customer with major event days, 1.25 without; CAIDI 1,387.7 minutes per interruption. EIA's North Carolina total across all reporting utilities was 1,441.0 minutes with major event days and 141.4 without. Major event days are storms and similar events that a utility's chosen method sets apart; methods differ, so treat comparisons as approximate. What SAIDI and SAIFI mean.
| Year | SAIDI, all events | SAIDI, no major events | SAIFI, all events | SAIFI, no major events | Method |
|---|---|---|---|---|---|
| 2025 early release | 216.7 | 164.0 | 1.33 | 1.18 | IEEE 1366 |
| 2024 | 3,063.1 | 170.7 | 2.21 | 1.25 | IEEE 1366 |
| 2023 | 322.1 | 198.4 | 1.64 | 1.46 | IEEE 1366 |
| 2022 | 450.6 | 183.1 | 1.92 | 1.32 | IEEE 1366 |
| 2021 | 235.4 | 152.3 | 1.23 | 1.10 | IEEE 1366 |
| 2020 | 590.6 | 179.7 | 1.66 | 1.19 | IEEE 1366 |
| 2019 | 287.2 | 170.9 | 1.26 | 1.04 | IEEE 1366 |
| 2018 | 844.1 | 212.6 | 1.81 | 1.14 | IEEE 1366 |
| 2017 | 465.1 | 189.4 | 1.47 | 1.12 | IEEE 1366 |
| 2016 | 325.0 | 168.6 | 1.36 | 1.07 | IEEE 1366 |
| 2015 | 260.9 | 148.2 | 1.23 | 1.00 | IEEE 1366 |
| 2014 | 504.6 | 135.3 | 1.23 | 0.92 | IEEE 1366 |
| 2013 | 229.5 | 132.8 | 1.12 | 0.92 | IEEE 1366 |
Generation at plants it operates, 2025
- Nuclear 60.9% 61.3 TWh
- Natural gas 27.9% 28.1 TWh
- Coal 9.5% 9.6 TWh
- Hydro 1.3% 1.3 TWh
- Solar 0.3% 318.8 GWh
Net generation of 100.7 TWh at power plants this utility operates, from Form EIA-923. It is not the mix delivered to customers: utilities also buy power wholesale (12 TWh in 2024), sell generation to others and may co-own plants that another company operates.
Counties in its service territory
- Alamance County NC
- Alexander County NC
- Anson County NC
- Buncombe County NC
- Burke County NC
- Cabarrus County NC
- Caldwell County NC
- Caswell County NC
- Catawba County NC
- Chatham County NC
- Cherokee County NC
- Clay County NC
- Cleveland County NC
- Davidson County NC
- Davie County NC
- Durham County NC
- Forsyth County NC
- Gaston County NC
- Graham County NC
- Granville County NC
- Guilford County NC
- Henderson County NC
- Iredell County NC
- Jackson County NC
- Lincoln County NC
- Macon County NC
- McDowell County NC
- Mecklenburg County NC
- Orange County NC
- Person County NC
- Polk County NC
- Randolph County NC
- Rockingham County NC
- Rowan County NC
- Rutherford County NC
- Stanly County NC
- Stokes County NC
- Surry County NC
- Swain County NC
- Transylvania County NC
- Union County NC
- Wake County NC
- Wilkes County NC
- Yadkin County NC
- Abbeville County SC
- Anderson County SC
- Cherokee County SC
- Chester County SC
- Edgefield County SC
- Fairfield County SC
- Greenville County SC
- Greenwood County SC
- Kershaw County SC
- Lancaster County SC
- Laurens County SC
- McCormick County SC
- Newberry County SC
- Oconee County SC
- Pickens County SC
- Saluda County SC
- Spartanburg County SC
- Union County SC
- York County SC
Counties the utility listed on Form EIA-861 for 2024. Listing a county does not mean the utility serves all of it.
Other utilities in North Carolina
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| Duke Energy Progress | Investor-owned | 1,499,792 | 15.47¢ | $157.75 | 1,650.4 | 139.8 |
| EnergyUnited Elec Member Corp | Cooperative | 121,995 | 11.54¢ | $137.08 | 424.3 | 123.8 |
| Brunswick Electric Member Corp | Cooperative | 105,562 | 13.66¢ | $130.77 | 44.5 | 31.2 |
| Union Electric Membership Corp | Cooperative | 84,602 | 13.37¢ | $164.48 | 357.1 | 53.2 |
| Jones-Onslow Elec Member Corp | Cooperative | 79,690 | 13.09¢ | $141.41 | 124.7 | 45.5 |
| Fayetteville Public Works Commission | Municipal | 75,987 | 12.21¢ | $118.52 | 129.3 | 70.9 |
| Blue Ridge Elec Member Corp | Cooperative | 71,926 | 14.59¢ | $126.74 | 6,038.5 | 92.9 |
| Rutherford Elec Member Corp | Cooperative | 70,743 | 13.13¢ | $146.41 | 5,532.4 | 350.2 |
All North Carolina utilities · Investor-owned utilities nationwide
Questions and answers
How much does electricity cost from Duke Energy Carolinas, LLC?
Residential customers paid an average of 13.95¢ per kilowatthour in 2024. EIA derives this by dividing residential revenue by residential sales; it is an average across all rate schedules and charges, not a tariff rate.
How does that compare with North Carolina?
The North Carolina average residential price in 2024 was 14.13¢ and the US average 16.48¢; Duke Energy Carolinas, LLC was about the same as the state figure. Among 53 utility filings with a bundled residential price in North Carolina, it had the 19th highest.
What is the average Duke Energy Carolinas, LLC bill?
$138.61 a month in 2024, on average residential use of 994 kWh a month (annual revenue and sales divided by customers and by twelve). The North Carolina average was $143.50 on 1,015 kWh.
How reliable is Duke Energy Carolinas, LLC service?
It reported 3,063.1 minutes of interruption per customer (SAIDI) including major event days and 170.7 minutes excluding them, with 2.21 interruptions per customer (SAIFI) in 2024. Utilities calculate these under differing methods, so comparisons are approximate.
Is the Duke Energy Carolinas, LLC price rising?
The average residential price was up 15.6% in 2024 compared with 2023 and up 31.4% compared with 2019. EIA's early, not fully edited release for 2025 shows 13.41¢.
Which counties does Duke Energy Carolinas, LLC serve?
Its Form EIA-861 service territory lists 63 counties, including Alamance County, NC, Alexander County, NC, Anson County, NC, Buncombe County, NC, Burke County, NC and Cabarrus County, NC. A county can appear in several utilities' territories.
Provenance
Source: U.S. Energy Information Administration. Annual figures are from Form EIA-861 (sales to ultimate customers, reliability, operational data and service territory files), final release for 2024, respondent "Duke Energy Carolinas, LLC", utility number 5416; the 2025 row is from EIA's early release. Monthly utility figures are from the Form EIA-861M sample. State and US averages are from the Form EIA-861M sales and revenue workbook, published through July 2026. Generation by fuel is from Form EIA-923, 2025 final. All are US government works in the public domain. Page built 30 Sep 2026. Errors in processing are corrected at the next build; see corrections. For tariffs and rate schedules, consult the utility or the state utility commission.