Black River Electric Co-op electricity rates
Electric cooperative · South Carolina · SERC region
Black River Electric Co-op is a member-owned electric cooperative, so its customers own it and elect its board, serving 30,874 homes in South Carolina. Its residential customers pay an average of 15.83¢/kWh including fixed and delivery charges, 12% less than the U.S. average.
Rate basis: EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend.
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Black River Electric Co-op bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $79.15 | $65.15 |
| 1,000 kWh | $158.30 | $104.80 |
| 1,500 kWh | $237.45 | $138.95 |
| 2,000 kWh | $316.60 | $173.10 |
*Residential (effective 2014-07-25, $20.00/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
Black River Electric Co-op residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Residential | 2014-07-25 | $20.00 | 9.03¢ first 750 kWh, 6.83¢ after |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
Black River Electric Co-op rate history
2015–2025: +29% change in the average residential rate (11.75¢ → 15.14¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2025 | Black River Electric Co-op | South Carolina avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 96 | 151 | 266 |
| Outages per customer (SAIFI) | 1.09 | 1.16 | 1.34 |
| Average restoration time (CAIDI) | 88 min | — | — |
| Outage minutes excluding major storms | 96 | 102 | 121 |
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across Black River Electric Co-op's counties, customers averaged 2 hr 40 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Lee | 485 | 51 | 2,849 | 2025-06-26 |
| Clarendon | 161 | 59 | 2,899 | 2025-06-20 |
| Sumter | 149 | 60 | 22,428 | 2025-06-20 |
| Kershaw | 128 | 45 | 4,356 | 2025-06-20 |
Black River Electric Co-op service area
Black River Electric Co-op serves 4 counties in South Carolina and 40 ZIP codes.
Clarendon, Kershaw, Lee, Sumter
Cities: Sumter, Lugoff, Camden, Lake City, Manning, Bishopville, Kingstree, Dalzell, Lakewood, Cherryvale, South Sumter, Timmonsville, Privateer, Saint Matthews, Wedgewood, Wedgefield, Stateburg, East Sumter, Oakland, Cane Savannah
Programs, smart meters & solar
| Smart meters (AMI) for homes | 100% |
| Time-based rate programs | None reported |
| Net-metered solar homes | 511 |
| Home batteries paired with solar | 20 |
Black River Electric Co-op at a glance
| Ownership | Electric cooperative |
| Services | Distribution |
| Commercial rate | 15.52¢/kWh |
| Industrial rate | 9.77¢/kWh |
| Retail revenue (2025) | $104,143,200 |
| Electricity sold (2025) | 737,329 MWh |
| Peak demand | 171 MW summer · 200 MW winter |
| Line losses | 3.5% |
| Balancing authority | SC |
| EIA utility ID | 1763 |
Other utilities in South Carolina
Frequently asked questions
What is Black River Electric Co-op's electricity rate?
Black River Electric Co-op residential customers pay an average of 15.83¢ per kWh, all charges included (EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend). That's 1% above the South Carolina average of 15.64¢ and 12% below the U.S. average.
What is the average Black River Electric Co-op electric bill?
About $204 a month. The average Black River Electric Co-op home uses 1,289 kWh a month. At 1,000 kWh the bill would be about $158.
How many customers does Black River Electric Co-op have?
Black River Electric Co-op serves 30,874 residential customers and 35,116 customers in total in South Carolina, across 4 counties.
How reliable is Black River Electric Co-op?
In 2025, the average Black River Electric Co-op customer was without power for 96 min (SAIDI) over 1.09 interruptions (SAIFI), including major storms. Excluding major event days it was 96 min. The South Carolina average was 2 hr 31 min and the U.S. average 4 hr 26 min.
Does Black River Electric Co-op offer net metering for solar?
Black River Electric Co-op had 511 residential net-metered customers in 2025 with 4.0 MW of capacity and 20 solar-paired batteries. Estimate solar savings at this utility's rate.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with Black River Electric Co-op before making decisions.