Dominion Energy SC peak and off-peak hours
What are Dominion Energy SC’s peak hours?
It depends on the plan. Rate 5: Mid-peak 12 am–1 am, Mid-peak 5 am–4 pm, Peak 4 pm–8 pm, Mid-peak 8 pm–12 am, every day, in summer (in winter: Mid-peak 12 am–1 am, Mid-peak 5 am–6 am, Peak 6 am–9 am, Mid-peak 9 am–noon, Mid-peak 3 pm–12 am). Hours are local clock time.
When is electricity cheapest on Dominion Energy SC?
On summer weekdays the lowest price is Rate 5: 1 am–5 am at 9.6¢/kWh, against 29.9¢ at the peak. Rate 8 charges the same price at every hour.
Which Dominion Energy SC plan is cheapest?
For a typical South Carolina home using 1,070 kWh a month, Rate 8 at about $184 a month (17.2¢/kWh all-in, before taxes). With an EV charged at its cheapest hour, Rate 5 gives the lowest total.
Peak and off-peak hours of every utility
Charging an EV on Dominion Energy SC
1,000 miles a month in a Tesla Model Y Long Range AWD (275 kWh from the wall, EPA 27.5 kWh/100 mi) at 7.2 kW, added to a typical South Carolina home’s use, on each plan’s cheapest start hour versus plugging in at 6 pm. Averaged over the year.
| Plan | Best start | Charging, best start | Charging from 6 pm | Whole bill with EV |
|---|
| Rate 8 | Any | $44/mo | $44/mo | $228/mo |
| Rate 5 | 1 am | $26/mo | $59/mo | $223/mo |
With an EV charged at its best hour, the cheapest plan overall is Rate 5. Compare plans on your own usage.
How Dominion Energy SC’s plans work
Rate 8 (Residential Service). In July the first 800 kWh a month cost 15.9¢ each; then 17.4¢ above 800 kWh a month. An average South Carolina home (1,499 kWh in July) goes past the first tier, so extra load such as an EV is priced higher. Fixed charge: $12.01 a month.
Rate 5 (Residential Time-of-Use). Mid-peak 12 am–1 am, Mid-peak 5 am–4 pm, Peak 4 pm–8 pm, Mid-peak 8 pm–12 am on July weekdays; 4 of 24 hours carry the top price of 29.9¢. The cheapest July weekday hour costs 9.6¢, so moving 1 kWh out of the top hours saves 20.3¢. January weekdays range from 9.6¢ to 29.9¢. Summer pricing applies May–Sep; winter pricing Oct–Apr. Fixed charge: $14.01 a month.
Prices on this page are all-in per kWh, before taxes: base rates, supply and every per-kWh rider in the utility’s current tariff sheets. Your bill shows them as separate lines, and riders can change between tariff revisions.
As a cross-check, Dominion Energy SC billed its residential customers an average of 16.41¢ per kWh in 2025 (revenue ÷ sales, EIA-861). A plan taken from URDB is shown only if its all-in price is consistent with that figure, adjusted for South Carolina’s price change since.