Utilities listed
29
South Carolina, 2025
Homes counted
2.63 million
Residential customers
Average price
15.12 cents
Per kWh, South Carolina
Average bill
$161.21
Per month
Utilities serving South Carolina homes
| Utility | Type | Homes in SC | Cents per kWh | Monthly bill |
|---|---|---|---|---|
| Dominion Energy South Carolina | Investor-owned | 712,679 | 16.41 | $169.35 |
| Duke Energy Carolinas | Investor-owned | 582,062 | 13.43 | $135.44 |
| Santee Cooper | State-owned | 188,962 | 12.91 | $123.85 |
| Duke Energy Progress | Investor-owned | 143,884 | 15.07 | $159.94 |
| Berkeley Electric Cooperative | Cooperative | 119,545 | 16.32 | $187.48 |
| Horry Electric Cooperative | Cooperative | 91,545 | 13.83 | $148.23 |
| Palmetto Electric Cooperative | Cooperative | 69,848 | 14.39 | $174.22 |
| Blue Ridge Electric Cooperative | Cooperative | 68,647 | 19.82 | $197.98 |
| York Electric Cooperative | Cooperative | 66,369 | 13.68 | $148.30 |
| Laurens Electric Cooperative | Cooperative | 59,786 | 15.62 | $167.25 |
| Mid-Carolina Electric Cooperative | Cooperative | 57,067 | 16.83 | $194.86 |
| Aiken Electric Cooperative | Cooperative | 50,850 | 17.51 | $192.47 |
| City of Rock Hill | Municipal | 36,786 | 12.34 | $102.79 |
| Santee Electric Cooperative | Cooperative | 35,356 | 16.39 | $211.26 |
| Fairfield Electric Cooperative | Cooperative | 33,071 | 15.60 | $180.63 |
| MPD Electric Cooperative | Cooperative | 32,130 | 13.73 | $180.11 |
| Black River Electric Cooperative | Cooperative | 30,874 | 15.14 | $195.19 |
| Broad River Electric Cooperative | Cooperative | 23,660 | 17.15 | $184.89 |
| Greer Commission of Public Works | Municipal | 23,192 | 12.81 | $115.08 |
| Lynches River Electric Cooperative | Cooperative | 21,730 | 16.34 | $174.12 |
| City of Orangeburg | Municipal | 20,682 | 15.18 | $163.78 |
| Tri-County Electric Cooperative | Cooperative | 17,670 | 19.94 | $225.50 |
| Easley Combined Utility System | Municipal | 16,019 | 12.81 | $125.61 |
| Edisto Electric Cooperative | Cooperative | 15,540 | 18.99 | $227.93 |
| Newberry Electric Cooperative | Cooperative | 13,215 | 17.06 | $172.19 |
| Greenwood CPW | Municipal | 11,676 | 9.97 | $82.83 |
| City of Gaffney | Municipal | 6,198 | 12.32 | $121.01 |
| Lockhart Power | Investor-owned | 4,961 | 14.23 | $158.31 |
| Haywood Electric Membership Corporation | Cooperative | 10 | 16.86 | $138.46 |
Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data). Homes in SC counts only the customers in this state. Price and bill cover the utility's whole territory and bundled customers only. Delivery only means the utility carries power but does not sell it.
Who owns South Carolina's electric companies
| Type | Utilities | Homes in SC | Share of homes |
|---|---|---|---|
| Investor-owned utility | 4 | 1,443,586 | 56.5% |
| Municipal utility | 6 | 114,553 | 4.5% |
| Electric cooperative | 18 | 806,913 | 31.6% |
| State-owned utility | 1 | 188,962 | 7.4% |
Each type is run differently. An investor-owned company answers to shareholders and a state commission. A municipal utility answers to a city. A cooperative answers to its members. That is why the same state can have very different prices and service from one address to the next.
What South Carolina utilities charge, by type
| Type | Utilities with a price | Average cents per kWh |
|---|---|---|
| Investor-owned utility | 4 | 14.41 |
| Municipal utility | 6 | 12.89 |
| Electric cooperative | 18 | 15.98 |
| State-owned utility | 1 | 12.91 |
Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data). Customer-weighted average of the prices utilities report for bundled residential service. It leaves out delivery-only customers and retail providers.
Outside the investor-owned companies, the largest municipal utility is City of Rock Hill (36,786 homes), and the largest electric cooperative is Berkeley Electric Cooperative (119,545 homes).
Price differences between types come from costs, customer density and the way each type is financed, so a lower average does not decide which is better for your home.
Utilities with full profiles
These South Carolina utilities are among the 600 largest in the country, and each has a profile with its service area, reliability and rate options.
- ProfileDominion Energy South Carolina713 thousand homes. Investor-owned.Open
- ProfileDuke Energy Carolinas2.54 million homes. Investor-owned.Open
- ProfileSantee Cooper189 thousand homes. State-owned.Open
- ProfileDuke Energy Progress1.53 million homes. Investor-owned.Open
- ProfileBerkeley Electric Cooperative120 thousand homes. Cooperative.Open
- ProfileHorry Electric Cooperative92 thousand homes. Cooperative.Open
- ProfilePalmetto Electric Cooperative70 thousand homes. Cooperative.Open
- ProfileBlue Ridge Electric Cooperative69 thousand homes. Cooperative.Open
- ProfileYork Electric Cooperative66 thousand homes. Cooperative.Open
How South Carolina compares
The statewide average residential price is 15.12 cents per kWh and the average bill is $161.21 a month. See the full breakdown, rankings and neighbors on the South Carolina electricity rates page. Among utilities with at least 10,000 bundled residential customers, average prices ran from 9.97 cents at Greenwood CPW to 19.94 cents at Tri-County Electric Cooperative.
Can you switch electric companies in South Carolina?
Most households cannot choose. The company that serves your address is set by where you live. Regulation and complaints go through the Public Service Commission of South Carolina.
Find yours
Not sure which one serves you?
South Carolina electric company questions
Who is the largest electric company in South Carolina?
Dominion Energy South Carolina serves the most residential customers in South Carolina, about 713 thousand homes in 2025 (EIA Form EIA-861).
How many electric utilities are there in South Carolina?
EIA lists 29 electric utilities with residential customers in South Carolina for 2025. Most households are served by a handful of the largest ones.
Which South Carolina utility has the lowest average price?
Among South Carolina utilities with at least 10,000 bundled residential customers, Greenwood CPW had the lowest average residential price in 2025 at 9.97 cents per kWh and Tri-County Electric Cooperative had the highest at 19.94 cents. Prices reflect the utility's costs and customer mix, so a lower price does not mean better service.
Can I choose my electric company in South Carolina?
Usually not. Households in South Carolina buy electricity from the utility, municipal system or cooperative that serves their address.