15.14¢
per kWh, 2025
[ Black River Electric Coop / SC ]
Black River Electric Coop electricity rates in South Carolina
CO-OP BOARD SETS RATES · DATA 2025
change in average rate, 2024→2025
+12.4%
vs 2024
30,874
residential customers
+26.0%
since 2020
What your bill becomes
Bill today
No change on file
Difference / month · / year
Estimated at Black River Electric Coop's average effective residential rate (15.14¢/kWh, EIA, all charges included). Your tariff, fees and taxes differ.
Rate history 2015–2025
| Year | ¢/kWh | Change | Customers |
|---|---|---|---|
| 2015 | 11.75¢ | — | 27,824 |
| 2016 | 11.81¢ | +0.5% | 27,967 |
| 2017 | 11.89¢ | +0.7% | 28,085 |
| 2018 | 11.90¢ | +0.1% | 28,343 |
| 2019 | 11.93¢ | +0.3% | 28,667 |
| 2020 | 12.02¢ | +0.8% | 29,065 |
| 2021 | 12.08¢ | +0.5% | 29,436 |
| 2022 | 12.00¢ | −0.7% | 29,778 |
| 2023 | 12.76¢ | +6.3% | 30,253 |
| 2024 | 13.47¢ | +5.6% | 30,610 |
| 2025 | 15.14¢ | +12.4% | 30,874 |
How this compares
15.12¢
South Carolina average, 2025
+0.1%
Black River Electric Coop vs SC 2025 average
−12.1%
vs US 2025 average
#16
priciest in SC
Serves 4 counties in South Carolina: Clarendon, Kershaw, Lee, Sumter. 40 ZIP codes.
What the numbers show
Since 2015, Black River Electric Coop's average residential rate has gone from 11.75¢ to 15.14¢ per kWh: +28.9% over 10 years, or about +2.6% a year. It rose in 9 of the 10 years we can compare, and the biggest one-year increase was +12.4% in 2025. The largest drop was −0.7% in 2022.
For a home using 1,066 kWh a month, the South Carolina average, Black River Electric Coop's 2025 rate works out to about $1,937 a year, about the same as the same home would pay at South Carolina's average rate of 15.12¢. Of the 29 South Carolina utilities in our data with a 2025 price, it is the 16th most expensive.
Black River Electric Coop served 27,824 homes in 2015 and 30,874 in 2025 (+11.0%), about 1% of South Carolina's residential electricity customers.
Who sets Black River Electric Coop's rates
Black River Electric Coop is a member-owned electric cooperative. A board elected by its members sets its rates. In some states the Public Service Commission of South Carolina also reviews co-op rates, but most co-op rate changes do not go through a commission rate case, so watch the co-op's own member notices and board meetings.
Commission contact: Public Service Commission of South Carolina. How we calculate every figure on this page: methodology.
Questions
Is Black River Electric Coop raising rates in 2026?
Black River Electric Coop's rates are set by its member-elected board, not through a rate case at the Public Service Commission of South Carolina, so check its own notices for a change this year. Its average residential rate moved +12.4% from 2024 to 2025.
What does Black River Electric Coop charge per kWh?
Black River Electric Coop's average effective residential rate was 15.14¢ per kWh in 2025 (EIA-861, revenue divided by sales, all charges included). South Carolina's 2025 average was 15.12¢.
How much have Black River Electric Coop rates gone up in five years?
+26.0% between 2020 and 2025, against +22.8% for South Carolina as a whole over the latest five-year window.
How many customers does Black River Electric Coop have in South Carolina?
30,874 residential customers in 2025, across 4 counties including Clarendon, Kershaw, Lee, according to the EIA-861 survey.
Where do these numbers come from?
Rates and customer counts are from the US Energy Information Administration's annual EIA-861 survey, which every US utility files. Nothing here is a utility bill; use it to understand the direction and size of changes.
Sources
- EIA-861 Sales to Ultimate Customers, 2015–2025 (released 2026-10-07)
- EIA-861M monthly state averages through Jul 2026
- NREL utility-by-ZIP lookup (2024)