Electricity rates — South Carolina Pub Serv Auth
A household served by South Carolina Pub Serv Auth using 1,000 kWh a month pays about $1,758.91 a year on the cheapest of 2 generally available plans — RESIDENTIAL GENERAL SERVICE SCHEDULE RG-25 from South Carolina Pub Serv Auth, in effect since April 2025. Rates checked September 23, 2026. A further 1 older schedule is listed further down with its year, but not ranked.
Every priced plan, 1,000 kWh/mo
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| RESIDENTIAL TRANSITION ADJUSTMENT SCHEDULE RTA-17priced by season · in effect since April 2017 · older schedule, not ranked | $1,510.40 | −$248.51 | 12.6¢ |
| RESIDENTIAL GENERAL SERVICE SCHEDULE RG-25✓ cheapestdemand charge · in effect since April 2025 | $1,758.91 | — | 14.7¢ |
| RESIDENTIAL TIME-OF-USE RATE SCHEDULE RT-25time-of-use · in effect since April 2025 | $2,015.52 | +$256.61 | 16.8¢ |
Cost across usage levels
The cheapest plan at each consumption level, showing whether the ranking holds as usage changes.
- 500 kWh/mo — cheapest $999.57 (RESIDENTIAL GENERAL SERVICE SCHEDULE RG-25), dearest $1,127.76, a $128.19 spread
- 1,000 kWh/mo — cheapest $1,758.91 (RESIDENTIAL GENERAL SERVICE SCHEDULE RG-25), dearest $2,015.52, a $256.61 spread
- 2,000 kWh/mo — cheapest $3,277.90 (RESIDENTIAL GENERAL SERVICE SCHEDULE RG-25), dearest $3,791.04, a $513.14 spread
What a typical bill costs
At 1,000 kWh a month the 2 generally available plans here run from $1,758.91 on RESIDENTIAL GENERAL SERVICE SCHEDULE RG-25 to $2,015.52 on RESIDENTIAL TIME-OF-USE RATE SCHEDULE RT-25, with a median of $1,887.22.
Effective rates, bill divided by kilowatt-hours, span 14.7¢ to 16.8¢ per kWh at that usage.
What South Carolina Pub Serv Auth's customers were billed in 2024
South Carolina Pub Serv Auth's open plans and its customers' bills disagree by more than a quarter: at 945 kWh a month, the median plan is 15.8¢ per kWh against 11.4¢ billed in 2024. Before relying on a plan price here, test it against a real South Carolina Pub Serv Auth bill in the bill analyzer.
| Ownership, as EIA classes it | State-owned |
|---|---|
| Full-service homes in South Carolina | 185,529 |
| Share of South Carolina's households | 7% |
| Average use per home | 945 kWh a month |
| Average bill per home | $107.52 a month |
| Billed per kWh, riders included | 11.4¢ |
| Median open plan here, at that use | 15.8¢ |
South Carolina Public Service Authority in U.S. Energy Information Administration, Form EIA-861, 2024 (Sales_Ult_Cust_2024.xlsx), retrieved September 23, 2026.
How it compares
Among the 109 utilities indexed, South Carolina Pub Serv Auth's cheapest open plan is the 44th-highest, 7% more than their median of $1,649.16. It sits between Nashville Electric Service ($1,757.60) and Progress Energy Florida Inc ($1,793.20).
In South Carolina it is the 2nd-dearest of the 6 utilities indexed; Horry Electric Coop Inc starts lowest, at $1,372.20.
Its fixed charge, $20.00 a month on RESIDENTIAL GENERAL SERVICE SCHEDULE RG-25, is higher than on the cheapest plan of 81 of the other 108 utilities.
RESIDENTIAL TRANSITION ADJUSTMENT SCHEDULE RTA-17 changes price with the season: a kWh costs 2.0¢ more in June to September than in October to May, and the same 1,000 kWh is billed $139.20 in its dearest month against $119.20 in its cheapest.
In the guides: What a bill costs before a single kilowatt-hour · The price that changes with the month
How the answer changes with usage
RESIDENTIAL GENERAL SERVICE SCHEDULE RG-25 is cheapest at every level tested — $999.57 a year at 500 kWh a month, $3,277.90 at 2,000 kWh.
The penalty for a poor choice grows with usage: $128.19 a year at 500 kWh against $513.14 at 2,000 kWh.
Cheapest 3 plans at 1,000 kWh a month
RESIDENTIAL TRANSITION ADJUSTMENT SCHEDULE RTA-17 — $1,510.40 a year, 12.6¢ per kWh effective, priced by season. It carries a $19.50 monthly standing charge. In effect since April 2017. Too old to quote as a current price.
RESIDENTIAL GENERAL SERVICE SCHEDULE RG-25 — $1,758.91 a year, 14.7¢ per kWh effective, demand-charged. It carries a $20.00 monthly standing charge. In effect since April 2025.
RESIDENTIAL TIME-OF-USE RATE SCHEDULE RT-25 — $2,015.52 a year, 16.8¢ per kWh effective, time-of-use. It carries a $20.00 monthly standing charge. In effect since April 2025.
How these plans are structured
Of 3 priceable plans: 1 time-of-use, 1 priced by season, 1 with demand charges.
Fixed monthly charges run from $19.50 to $20.00.
Who provides these plans
EIA-861 lists South Carolina Pub Serv Auth serving homes in South Carolina and in no other state, which is how its plans are placed there. 3 of its 3 published residential schedules can be priced.
The largest saving available here
Moving from RESIDENTIAL TIME-OF-USE RATE SCHEDULE RT-25 to RESIDENTIAL GENERAL SERVICE SCHEDULE RG-25 saves $256.61 a year at 1,000 kWh a month, with no change in consumption.
What this does not cover
One of these plans prices by the hour, so its figure is marked lower confidence.
New to these terms? The methodology page explains tiered bands, time-of-use periods and fixed charges, and sets out exactly what the rate engine assumes.
Estimate — your actual bill may differ.
Tariff structures from NREL/OpenEI Utility Rate Database (CC0 1.0), retrieved September 23, 2026.