South Carolina Public Service Authority · SC
When are South Carolina Public Service Authority’s peak hours?
South Carolina Public Service Authority’s peak hours are 3pm–6pm, April–October; 6am–9am, November–March. Everything outside those hours is off-peak.
At peak, RESIDENTIAL TIME-OF-USE RATE SCHEDULE RT-25 charges 37.4¢ a kWh; off-peak it is 11.6¢ — 3.2× apart. Prices from the filed tariff.
These hours only apply if you are on a time-of-use plan. South Carolina Public Service Authority’s default plan, RESIDENTIAL GENERAL SERVICE SCHEDULE RG-25, charges one rate at every hour of the day. A household that never switched has no peak hours to avoid — and no cheap hours to use.
What the day looks like on RESIDENTIAL TIME-OF-USE RATE SCHEDULE RT-25
- peak37.44¢
- off-peak11.56¢
Full pricing, eligibility and the annual cost for three households: RESIDENTIAL TIME-OF-USE RATE SCHEDULE RT-25 →
Every South Carolina Public Service Authority plan with peak hours
| Plan | Peak hours | Peak | Off-peak | Weekends |
|---|---|---|---|---|
| RESIDENTIAL TIME-OF-USE RATE SCHEDULE RT-25 | 3pm–6pm, April–October; 6am–9am, November–March | 37.4¢ | 11.6¢ | partly priced |
Peak and off-peak are the highest and lowest energy prices on each plan; some plans add a shoulder price between them. Fixed monthly charges are not included here — they are on each plan’s page.
What is it worth to move a load out of peak?
On RESIDENTIAL TIME-OF-USE RATE SCHEDULE RT-25, every kilowatt-hour a day you move from 6am to midnight is worth about $94 a year in the month the gap is widest. An electric car charging 10 kWh a night, or a water heater on a timer, is the kind of load that actually moves.
When should you charge an electric car at home? →Where this comes from
Hours and prices are read from the tariff South Carolina Public Service Authority filed with its regulator, as published in the NREL Utility Rate Database, and drawn the same way on every plan page. If your plan is not listed here, either it has no hourly pricing or its filing is too old or too partial for us to price honestly — we leave those out rather than guess.
All South Carolina Public Service Authority plans compared →