City of Rock Hill electricity rates
City of Rock Hill charges an average of 12.55 cents per kilowatt-hour to residential customers, and the average household on its system paid $103 a month using 824 kilowatt-hours, according to its 2024 filing with the U.S. Energy Information Administration.
Municipal utility DUK South Carolina
Where City of Rock Hill sits
It is a smaller system, serving 36,492 residential customers, which means its fixed costs are spread across a narrow base. At 12.55¢ per kilowatt-hour it is one of the cheaper places to buy electricity in South Carolina, 22.4% under the statewide average of 16.18¢.
Consumption is close to the national norm at 824 kilowatt-hours a month against 871, so the rate translates fairly directly into the bill.
Owned by the city it serves and governed by a local board rather than the state commission. No shareholder return is built into the rate. That matters because a bill is not only the cost of generating electricity: it also carries the cost of the network, and who owns that network changes how it is paid for.
| Rate | Monthly bill | Monthly kWh | |
|---|---|---|---|
| City of Rock Hill | 12.55¢ | $103 | 824 |
| South Carolina average | 16.18¢ | $164 | 1,061 |
| United States average | 18.44¢ | $155 | 871 |
Utility figures: U.S. Energy Information Administration, Form EIA-861 annual electric power industry report, 2024. State and national figures: Electric Power Monthly, May 2026. Methodology
Where City of Rock Hill delivers
Its service territory covers one county in South Carolina.
- York
How often the power goes out
In 2024 the average City of Rock Hill customer went 605 minutes without electricity across 2.12 interruptions. The median across the 941 utilities that report this is 185 minutes.
That is far worse than typical, and figures at this level almost always reflect a major storm season rather than everyday performance. A single hurricane or ice storm can dominate the annual number.
Rooftop solar on this system
227 residential customers had net-metered solar in 2024, totalling 1.41 megawatts. That works out to 6.2 installations per thousand customers, against a median of 8 across the utilities reporting it.
Adoption is below the national median. A low retail rate reduces what solar displaces, and export compensation set at avoided cost rather than the retail rate reduces it further. What exports are actually worth.
Other South Carolina utilities
| Utility | Rate | Bill | Customers |
|---|---|---|---|
| Dominion Energy South Carolina, Inc | 14.59¢ | $151 | 696,385 |
| Duke Energy Carolinas, LLC | 13.99¢ | $144 | 568,586 |
| Santee Electric Coop, Inc | 14.74¢ | $184 | 35,235 |
| Fairfield Electric Coop, Inc | 14.35¢ | $164 | 32,397 |
| MPD Electric Cooperative | 10.94¢ | $144 | 31,874 |
City of Rock Hill rates: common questions
How much does City of Rock Hill charge per kilowatt-hour?
An average of 12.55 cents per kilowatt-hour across its residential customers in 2024. That is -22.4% against the South Carolina average of 16.18¢ and -31.9% against the national average of 18.44¢. It is an all-in average across every residential rate schedule the utility offers, not a specific tariff.
What is the average City of Rock Hill bill?
$103 a month, based on total residential revenue divided by residential customers over the 2024 survey year, at an average of 824 kWh a month. The national average bill is $155 at 871 kWh.
Who owns City of Rock Hill?
It is classified by the EIA as a municipal utility. Owned by the city it serves and governed by a local board rather than the state commission. No shareholder return is built into the rate.
Is City of Rock Hill expensive compared with other South Carolina utilities?
It ranks #24 of the 29 South Carolina utilities covered here, counting from the most expensive. Nationally it ranks #901 of 1369.