Dominion Energy South Carolina electric rates and bills
Dominion Energy South Carolina's 712,679 residential customers in South Carolina paid an average of 16.41¢ per kWh in 2025, for an average bill of $169.35 a month on 1,032 kWh.1 Over the last 12 months (Sep 2025–Aug 2026) the average was 17.21¢, and 17.38¢ in August 2026.2
EIA-861 2025 final (released October 7, 2026) and EIA's monthly utility survey through August 2026 (preliminary); next monthly update expected November 24, 2026. Averages are revenue divided by kWh, all charges included: not the rate printed in a tariff.
23 of 46 South Carolina counties served (EIA-861 2025)
Dominion Energy South Carolina's homes paid an average of 16.41¢ per kWh in 2025, +12.5% on 2024, while both Duke Energy utilities in the state recorded lower averages than a year before. Use per home did not change, so the average bill rose by the same +12.5%1 as the price.
Price per kWh: three periods, three figures
Dominion Energy South Carolina, the operating name of Dominion Energy South Carolina, Inc., is the state's largest electric utility by residential customers: 712,679 in 2025, 27.9%1 of all South Carolina homes on the grid. What they paid depends on the period asked about.
| Period | Average residential price | Source |
|---|---|---|
| 2025, full year | 16.41¢ per kWh1 | EIA-861, final |
| Last 12 months, September 2025 to August 2026 | 17.21¢ per kWh | EIA-861M, 2026 months preliminary |
| August 20263 | 17.38¢ per kWh2 | EIA-861M, preliminary |
Each figure is average revenue per kWh: total residential billing divided by the kWh sold. It includes the basic facilities charge, the fuel component and riders, and excludes most taxes, so it does not match any single line of the tariff, and a home that uses little electricity pays more per kWh than the average shows. The latest month was +5.3%2 against August 2025; statewide, the residential average for August 2026 was 15.76¢ per kWh, +4.0%3 on a year earlier.
The highest 2025 average among South Carolina's large utilities
In 2025, South Carolina had 5 utilities with 100,000 or more residential customers, and Dominion Energy South Carolina's average of 16.41¢ per kWh was above all four others: Berkeley Electric Cooperative at 16.32¢ per kWh, Duke Energy Progress at 14.09¢ per kWh, Duke Energy Carolinas at 13.47¢ per kWh and Santee Cooper at 12.91¢ per kWh. Counting every utility with 10,000 or more residential customers, it ranked 8th highest of 26, 8.5% above the South Carolina average1 of 15.12¢ per kWh4.
Source: EIA-861 annual electric power industry report, 2025 final. Utilities with 10,000 or more bundled (full-service) residential customers. Revenue divided by kWh sold, all charges included, EIA-861 2025 final. Darker bars have their own page.
Show the numbers
| Utility | ¢/kWh |
|---|---|
| Greenwood CPW | 9.97¢ |
| City of Rock Hill | 12.34¢ |
| Easley Combined Utility System | 12.81¢ |
| Greer Commission of Public Wks | 12.81¢ |
| Santee Cooper | 12.91¢ |
| Duke Energy Carolinas | 13.47¢ |
| York Electric Cooperative | 13.68¢ |
| MPD Electric Cooperative | 13.73¢ |
| Horry Electric Cooperative | 13.83¢ |
| Duke Energy Progress | 14.09¢ |
| Palmetto Electric Cooperative | 14.39¢ |
| South Carolina average | 15.12¢ |
| Black River Electric Cooperative | 15.14¢ |
| City of Orangeburg | 15.18¢ |
| Fairfield Electric Cooperative | 15.60¢ |
| Laurens Electric Cooperative | 15.62¢ |
| Berkeley Electric Cooperative | 16.32¢ |
| Lynches River Electric Cooperative | 16.34¢ |
| Santee Electric Cooperative | 16.39¢ |
| Dominion Energy South Carolina | 16.41¢ |
| Mid-Carolina Electric Cooperative | 16.83¢ |
| Newberry Electric Cooperative | 17.06¢ |
| Broad River Electric Cooperative | 17.16¢ |
| Aiken Electric Cooperative | 17.51¢ |
| Edisto Electric Cooperative | 18.99¢ |
| Blue Ridge Electric Cooperative | 19.82¢ |
| Tri-County Electric Cooperative | 19.94¢ |
On a national scale the picture is different. Among the 177 US utilities with 100,000 or more residential customers, Dominion Energy South Carolina ranked 67th highest of 177, above the median of 15.07¢ per kWh but 7.7% below the national average for investor-owned utilities1 in 2025.
A rise that went against the Duke utilities
From 2024 to 2025, Dominion Energy South Carolina's residential average went from 14.59¢ per kWh5 to 16.41¢ per kWh (+12.5%). The two Duke Energy utilities moved the other way over the same years: Duke Energy Carolinas −3.7% and Duke Energy Progress −5.3%. Santee Cooper, the state-owned utility, rose 13.4%1 but from a lower base. The South Carolina average for all providers rose 6.3%4.
Because use per home did not change, the bill moved with the price. Use per home was 1,032 kWh a month in 2024 and 1,032 kWh in 2025, so the bill's rise from $150.605 to $169.35 (+12.5%1) came from the price, not from higher use.
EIA's monthly survey continues the series past 2025. Over the last 12 months (September 2025 to August 2026) the residential average was 17.21¢ per kWh, against 15.77¢ per kWh3 for South Carolina as a whole, 14.07¢ per kWh for Duke Energy Carolinas and 14.07¢ per kWh2 for Santee Cooper. The 2026 months are preliminary.
Source: EIA-861M monthly sales and revenue by utility; EIA, Electric Power Monthly / EIA-861M sales and revenue by state. Residential revenue divided by kWh in each month, as reported to EIA's monthly survey (EIA-861M; months since January 2026 preliminary).
Show the numbers
| Month | Dominion Energy South Carolina (¢/kWh) | kWh per customer | Bill per customer |
|---|---|---|---|
| January 2025 | 16.25¢ | 1,496 | $242.97 |
| February 2025 | 17.12¢ | 900 | $154.08 |
| March 2025 | 16.78¢ | 805 | $135.09 |
| April 2025 | 16.57¢ | 779 | $129.14 |
| May 2025 | 16.62¢ | 921 | $152.96 |
| June 2025 | 16.33¢ | 1,288 | $210.45 |
| July 2025 | 16.55¢ | 1,517 | $251.05 |
| August 2025 | 16.50¢ | 1,147 | $189.33 |
| September 2025 | 15.81¢ | 977 | $154.49 |
| October 2025 | 16.72¢ | 736 | $123.03 |
| November 2025 | 16.29¢ | 814 | $132.54 |
| December 2025 | 16.01¢ | 1,123 | $179.84 |
| January 2026 | 18.38¢ | 1,260 | $231.64 |
| February 2026 | 20.10¢ | 997 | $200.45 |
| March 2026 | 18.01¢ | 790 | $142.30 |
| April 2026 | 17.28¢ | 735 | $127.03 |
| May 2026 | 16.27¢ | 942 | $153.29 |
| June 2026 | 16.83¢ | 1,200 | $201.94 |
| July 2026 | 17.12¢ | 1,534 | $262.62 |
| August 2026 | 17.38¢ | 1,399 | $243.19 |
How rate increases are decided
Dominion Energy South Carolina's base rates are set by the Public Service Commission of South Carolina in general rate cases, which the commission's docket system lists with their filings and orders. Fuel is handled separately: South Carolina law (S.C. Code § 58-27-865) requires the commission to review each utility's fuel costs every twelve months and set the amount in rates that recovers them, adjusted for any over- or under-recovery of the previous twelve months. The price customers pay can therefore move in a year without a rate case. The guide to rate increases explains how such decisions reach a bill.
Bills: lower use than the price suggests
Dominion Energy South Carolina homes used 1,032 kWh a month in 2025, less than the South Carolina average of 1,067 kWh. That narrows the bill gap with its neighbors. Duke Energy Progress had a lower average price, but its homes used 1,206 kWh, and its average bill ($169.91) was close to Dominion's $169.35. Berkeley Electric Cooperative, with a similar average price, had the higher bill at $187.481. The statewide average bill was $161.216.
Source: EIA-861 annual electric power industry report, 2025 final. EIA-861 2025 final. Average revenue per kWh is all charges divided by kWh; it is not a tariff rate.
Show the numbers
| Utility | average monthly residential bill |
|---|---|
| Santee Cooper (SC) | $123.85 |
| Duke Energy Carolinas (SC) | $141.55 |
| Dominion Energy South Carolina (SC) | $169.35 |
| Duke Energy Progress (SC) | $169.91 |
| Berkeley Electric Cooperative (SC) | $187.48 |
July bills, April bills
South Carolina's 2,031 cooling degree days a year (NOAA average for 2016 to 2025) are the 7th highest7 among the contiguous states and DC, and Dominion Energy South Carolina's monthly data peak in summer. In the 12 months from September 2025 to August 2026, use per home ranged from 735 kWh in April 2026 to 1,534 kWh in July 2026, and the average bill in those two months from $127.03 to $262.62. The 12-month average bill was $179.53 on 1,043 kWh2. Those 2026 months are preliminary.
Source: EIA-861M monthly sales and revenue by utility. kWh per residential customer in each month (EIA-861M; months since January 2026 preliminary). The table adds the average bill and price for the month.
Show the numbers
| Month | kWh per customer | Bill per customer | ¢/kWh |
|---|---|---|---|
| September 2025 | 977 | $154.49 | 15.81¢ |
| October 2025 | 736 | $123.03 | 16.72¢ |
| November 2025 | 814 | $132.54 | 16.29¢ |
| December 2025 | 1,123 | $179.84 | 16.01¢ |
| January 2026 | 1,260 | $231.64 | 18.38¢ |
| February 2026 | 997 | $200.45 | 20.10¢ |
| March 2026 | 790 | $142.30 | 18.01¢ |
| April 2026 | 735 | $127.03 | 17.28¢ |
| May 2026 | 942 | $153.29 | 16.27¢ |
| June 2026 | 1,200 | $201.94 | 16.83¢ |
| July 2026 | 1,534 | $262.62 | 17.12¢ |
| August 2026 | 1,399 | $243.19 | 17.38¢ |
Time-of-use, solar and smart meters
Almost every residential meter is an advanced meter (99.5% in 2025), yet 6,119 residential customers, 0.9% of the total, were enrolled in a time-of-use rate. Santee Cooper, by contrast, reported 100.0%8 of its residential customers in time-varying pricing. Dominion publishes the hours and prices of its time-of-use schedules in its tariff; the time-of-use guide explains when such a rate lowers a bill.
Rooftop solar is more common: 16,383 net-metered residential installations with 118.3 megawatts of capacity, 23.0 per 1,000 customers in 2025. Duke Energy Carolinas had 22.0 per 1,000 in South Carolina and Santee Cooper 10.38. See net metering for how exported power is credited.
Outages: fewer minutes, more interruptions
In 2025 Dominion Energy South Carolina customers averaged 131 minutes without power including major events, fewer than the South Carolina average of 151 minutes, and 81 minutes excluding them (IEEE 1366). Interruptions were slightly more frequent than the state's: 1.34 per customer, against 1.25 for South Carolina. Duke Energy Carolinas' customers averaged 220 minutes and Santee Cooper's 43 minutes9.
Commercial and industrial customers
The 110,815 commercial accounts paid 12.90¢ per kWh on average in 2025, with an average bill of $760.50 a month, well above Duke Energy Carolinas' $483.06 in the state. The 776 industrial accounts paid 8.43¢ per kWh, and the average across all customer classes was 13.27¢ per kWh1.
Service area and parent company
EIA's service-territory records place Dominion Energy South Carolina in 23 counties, among them Abbeville County, Aiken County, Allendale County, Bamberg County, Barnwell County, Beaufort County, Berkeley County, Calhoun County, Charleston County, Colleton County, Dorchester County, Edgefield County and 11 others. In all 2310, at least one other utility also reports customers, so a county or ZIP code does not settle which utility serves a home; the utilities' own service maps do.
Source: EIA-861 2025, service territory; Census Bureau, Cartographic boundary file, counties. EIA-861 2025 service territory: 23 counties. Counts whole counties even where the utility serves only part of one; check the utility's own service-area map for an address.
Show the numbers
| County | Other utilities reporting service |
|---|---|
| Abbeville County | Duke Energy Carolinas, Laurens Electric Cooperative, Little River Electric Cooperative, City of Abbeville, City of Due West |
| Aiken County | Mid-Carolina Electric Cooperative, Aiken Electric Cooperative |
| Allendale County | Palmetto Electric Cooperative, Edisto Electric Cooperative |
| Bamberg County | Edisto Electric Cooperative, Coastal Electric Cooperative, Bamberg Board of Public Works |
| Barnwell County | Aiken Electric Cooperative, Edisto Electric Cooperative |
| Beaufort County | Palmetto Electric Cooperative |
| Berkeley County | Santee Cooper, Berkeley Electric Cooperative, Edisto Electric Cooperative |
| Calhoun County | Aiken Electric Cooperative, Tri-County Electric Cooperative |
| Charleston County | Berkeley Electric Cooperative |
| Colleton County | Edisto Electric Cooperative, Coastal Electric Cooperative |
| Dorchester County | Berkeley Electric Cooperative, Edisto Electric Cooperative, Coastal Electric Cooperative |
| Edgefield County | Duke Energy Carolinas, Aiken Electric Cooperative |
| Fairfield County | Duke Energy Carolinas, Fairfield Electric Cooperative, Newberry Electric Cooperative, Town of Winnsboro |
| Greenwood County | Duke Energy Carolinas, Aiken Electric Cooperative, Little River Electric Cooperative, Greenwood CPW |
| Hampton County | Palmetto Electric Cooperative, Edisto Electric Cooperative |
| Jasper County | Palmetto Electric Cooperative |
| Lexington County | Mid-Carolina Electric Cooperative, Aiken Electric Cooperative, Tri-County Electric Cooperative, Newberry Electric Cooperative |
| McCormick County | Duke Energy Carolinas, Aiken Electric Cooperative, Little River Electric Cooperative, Town of McCormick |
| Newberry County | Duke Energy Carolinas, Laurens Electric Cooperative, Mid-Carolina Electric Cooperative, Broad River Electric Cooperative, Newberry Electric Cooperative, City of Newberry, Town of Prosperity |
| Orangeburg County | Aiken Electric Cooperative, City of Orangeburg, Tri-County Electric Cooperative, Edisto Electric Cooperative |
| Richland County | Mid-Carolina Electric Cooperative, Fairfield Electric Cooperative, Tri-County Electric Cooperative |
| Saluda County | Duke Energy Carolinas, Mid-Carolina Electric Cooperative, Aiken Electric Cooperative |
| Union County | Duke Energy Carolinas, Laurens Electric Cooperative, Broad River Electric Cooperative, City of Union, Lockhart Power Co |
Dominion Energy also owns Dominion Energy Virginia, whose homes paid 15.20¢ per kWh1 in 2025; each state's commission sets its own rates. The Dominion Energy page compares the company's utilities, and electricity in South Carolina covers the state's other providers.
Dominion Energy South Carolina questions
What is Dominion Energy South Carolina's rate per kWh?
The tariff has a basic facilities charge, energy charges, a fuel component and riders, so no single line is the rate. What residential customers paid on average, all of those included, was 16.41¢ per kWh1 in 2025 (EIA-861, final), 17.21¢ per kWh over the last 12 months (September 2025 to August 2026) and 17.38¢ per kWh2 in August 20263 (preliminary).
What is the average Dominion Energy electric bill in South Carolina?
$169.35 a month in 2025 for 1,032 kWh1, up from $150.605 in 2024. Over the last 12 months (September 2025 to August 2026) the computed average was $179.53; the highest month in that period, July 2026, averaged $262.622.
Is Dominion Energy South Carolina more expensive than Duke Energy?
Per kWh, yes, in EIA's 2025 data: 16.41¢ per kWh against 13.47¢ per kWh at Duke Energy Carolinas and 14.09¢ per kWh1 at Duke Energy Progress in South Carolina. Customers cannot choose: South Carolina has no residential retail choice, and the address decides the utility.
Can I switch from Dominion Energy South Carolina to another provider?
No. EIA counted 01 South Carolina homes buying electricity from a competitive supplier in 2025. Dominion Energy South Carolina is both the supplier and the wires company for the homes in its territory.
Related pages
Sources
- EIA-861 annual electric power industry report, 2025 final; table Sales_Ult_Cust_2025; 2025, final; released October 7, 2026. www.eia.gov
- EIA-861M monthly sales and revenue by utility; table sales_ult_cust_2025 and _2026; released October 23, 2026. www.eia.gov
- EIA, Electric Power Monthly / EIA-861M sales and revenue by state; table sales_revenue.xlsx (EPM Table 5.6.A); January 2001 to 2026-08; months since January 2026 preliminary; released October 23, 2026. www.eia.gov
- EIA, Historical state data, annual sales, revenue and customers; table HS861 2010-.xlsx; 2010-2025, final; released October 7, 2026. www.eia.gov
- EIA-861 annual electric power industry report, 2024 final; table Sales_Ult_Cust_2024; 2024, final (file updated December 3, 2025); released December 3, 2025. www.eia.gov
- EIA-861 2025, average monthly bill by state; table Average_Bill_2025; 2025, final; released October 7, 2026. www.eia.gov
- NOAA, Climate Prediction Center population-weighted degree days by state; table daily state files, base 65°F; 2016-2025 annual sums; 1981-2010 CPC normals; released November 13, 2026. ftp.cpc.ncep.noaa.gov
- EIA-861 2025, advanced meters, dynamic pricing and net metering; table Advanced_Meters, Dynamic_Pricing, Net_Metering 2025; 2025, final; released October 7, 2026. www.eia.gov
- EIA-861 2025, reliability; table Reliability_2025; 2025, final; released October 7, 2026. www.eia.gov
- EIA-861 2025, service territory; table Service_Territory_2025; 2025, final; released October 7, 2026. www.eia.gov
- Census Bureau, Cartographic boundary file, counties; table cb_2025_us_county_5m; cb_2021_us_county_5m; 2025 (2021 for Connecticut). www.census.gov
How every figure is built: methodology. Found an error? Write to [email protected]; corrections are listed on the updates page.