South Carolina Public Service Authority electricity rates
State-owned utility · South Carolina · SERC region
South Carolina Public Service Authority is a state-owned power authority, serving 188,962 homes in South Carolina. Its residential customers pay an average of 14.06¢/kWh including fixed and delivery charges, 22% less than the U.S. average.
Rate basis: EIA-861M monthly utility data, 12 months ending 2026-07.
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South Carolina Public Service Authority bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $70.30 | $77.81 |
| 1,000 kWh | $140.60 | $135.61 |
| 1,500 kWh | $210.90 | $193.42 |
| 2,000 kWh | $281.20 | $251.22 |
*RESIDENTIAL GENERAL SERVICE SCHEDULE RG-25 (effective 2025-04-01, $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.
South Carolina Public Service Authority residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| RESIDENTIAL GENERAL SERVICE SCHEDULE RG-25 | 2025-04-01 | $20.00 | 11.56¢ |
| RESIDENTIAL TIME-OF-USE RATE SCHEDULE RT-25time-of-use | 2025-04-01 | $20.00 | 11.6¢ (12am–3pm, 6pm–12am) · 37.4¢ (3pm–6pm) — summer weekdays |
| RESIDENTIAL TRANSITION ADJUSTMENT SCHEDULE RTA-17time-of-use | 2017-04-01 | $19.50 | 12.0¢ (12am–12am) — summer weekdays |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
South Carolina Public Service Authority rate history
2015–2025: +18% change in the average residential rate (10.96¢ → 12.91¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2025 | South Carolina Public Service Authority | South Carolina avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 43 | 151 | 266 |
| Outages per customer (SAIFI) | 0.69 | 1.16 | 1.34 |
| Average restoration time (CAIDI) | 62 min | — | — |
| Outage minutes excluding major storms | 41 | 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 South Carolina Public Service Authority's counties, customers averaged 2 hr 1 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Berkeley | 158 | 116 | 20,654 | 2025-06-09 |
| Georgetown | 143 | 76 | 2,616 | 2025-07-18 |
| Horry | 94 | 50 | 30,016 | 2025-02-20 |
South Carolina Public Service Authority service area
South Carolina Public Service Authority serves 3 counties in South Carolina and 14 ZIP codes.
Berkeley, Georgetown, Horry
Cities: Summerville, Myrtle Beach, Socastee, North Myrtle Beach, Garden City, Georgetown, Little River, Sangaree, Murrells Inlet, Forestbrook, Surfside Beach, Lincolnville
Programs, smart meters & solar
| Smart meters (AMI) for homes | 100% |
| Customers with daily usage data online | 97,704 |
| Time-based rate programs | Time-of-use rates |
| Homes on time-based rates | 188,962 |
| Net-metered solar homes | 1,954 |
| Homes in demand response (e.g. thermostat rebates) | 1,343 |
| Residential efficiency incentives paid (2025) | $2,327,835 |
| Residential energy saved by programs | 8,629 MWh |
South Carolina Public Service Authority at a glance
| Ownership | State-owned utility |
| Services | Generation, Transmission, Distribution, Wholesale Marketing, Bundled |
| Commercial rate | 11.31¢/kWh |
| Industrial rate | 6.21¢/kWh |
| Retail revenue (2025) | $858,131,700 |
| Electricity sold (2025) | 10,275,836 MWh |
| Peak demand | 5,208 MW summer · 5,415 MW winter |
| Power from own generation | 75% (rest purchased) |
| Line losses | 1.8% |
| Balancing authority | SC |
| EIA utility ID | 17543 |
Other utilities in South Carolina
Frequently asked questions
What is South Carolina Public Service Authority's electricity rate?
South Carolina Public Service Authority residential customers pay an average of 14.06¢ per kWh, all charges included (EIA-861M monthly utility data, 12 months ending 2026-07). That's 10% below the South Carolina average of 15.64¢ and 22% below the U.S. average.
What is the average South Carolina Public Service Authority electric bill?
About $135 a month. The average South Carolina Public Service Authority home uses 959 kWh a month. At 1,000 kWh the bill would be about $141.
How many customers does South Carolina Public Service Authority have?
South Carolina Public Service Authority serves 188,962 residential customers and 219,897 customers in total in South Carolina, across 3 counties.
How reliable is South Carolina Public Service Authority?
In 2025, the average South Carolina Public Service Authority customer was without power for 43 min (SAIDI) over 0.69 interruptions (SAIFI), including major storms. Excluding major event days it was 41 min. The South Carolina average was 2 hr 31 min and the U.S. average 4 hr 26 min.
Does South Carolina Public Service Authority offer time-of-use rates?
Yes. The OpenEI rate database lists 2 time-of-use residential plans, including RESIDENTIAL TIME-OF-USE RATE SCHEDULE RT-25. Running big appliances off-peak can cut their cost. Pick the plan in the calculator above to see by how much.
Does South Carolina Public Service Authority offer net metering for solar?
South Carolina Public Service Authority had 1,954 residential net-metered customers in 2025 with 13.5 MW of capacity. 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 South Carolina Public Service Authority before making decisions.