How do I switch to Dominion Rate 7 in South Carolina?

Contact Dominion Energy South Carolina and request a move from your current residential rate to Rate 7, the time-of-use demand rate. They'll confirm your meter supports time-of-use billing and set the effective date.

Is there a cost to switch to time-of-use?

The rate change itself is a plan switch with Dominion; any meter change needed is handled by them. The bigger question is whether the switch saves money for your usage — which usually depends on having a battery to cover the peak.

Can I switch back to Rate 8 if it doesn't work out?

Generally yes, though time-of-use plans can carry a minimum commitment period. Ask Dominion about commitment terms before you enroll.

Do I need solar to benefit from Rate 7?

No. The easiest savings path is a battery plus the rate switch — no panels required. Solar stacks on top as a second tier.

How to switch to Dominion Rate 7 (time-of-use) in South Carolina

The rate switch is the actual lever behind home-battery savings on Dominion — the battery is just what makes the switch pay off. So once you've decided Rate 7 makes sense for your house, here's the practical side: what it takes to move off the standard plan, from someone who did it in Charleston.

First: make sure the math works before you switch

This is the step people skip. Moving to Rate 7 only saves money if you can keep your on-peak usage low — almost always with a battery. Switch without that, and you can end up paying more than you did on Rate 8, because you're now exposed to peak energy rates and a demand charge. So before you call anyone, confirm the switch actually pays for your usage. That's the whole point of running your bill through the analyzer — and I lay out the full logic in is a home battery worth it on Dominion Rate 7.

If the numbers don't work, the most useful thing this site can tell you is "don't switch." That's a real answer too.

The metering requirement

Time-of-use billing needs a meter that records when you use energy, not just how much. Most modern Dominion meters in South Carolina already support interval data, but enrollment on Rate 7 depends on having the right metering in place. When you request the switch, Dominion confirms your meter can support time-of-use billing and handles any meter change needed. It's their equipment and their process — you don't buy or install anything yourself for this part.

How to request the switch

Rate 7 is available to residential customers on a voluntary basis, so the move is a request to Dominion, not an automatic thing. The straightforward path:

Contact Dominion Energy South Carolina and tell them you want to move from your current residential rate (usually Rate 8) to Rate 7, the time-of-use demand rate. Their residential customer service line is the place to start, or your online account.
Confirm your meter supports time-of-use billing, and ask about timing — when the new rate takes effect and whether a meter exchange is needed.
Ask about any commitment terms before you say yes (see below).

Because rate plans and enrollment details change, treat the exact steps as "confirm with Dominion when you call" rather than gospel from a blog post — including mine.

What to confirm before you commit

A few things worth asking up front so there are no surprises:

Any minimum commitment period. Time-of-use rates can carry a commitment to stay on the plan for a set time. Know it before you switch.
Billing-program limitations. Some convenience options — like levelized or budget billing — may not be available on Rate 7. If you rely on one of those, ask.
The current on-peak windows for your season. Summer and winter have different peak hours, and the time-of-use periods themselves are subject to change (see below). You want to know exactly which hours you're protecting before day one.
Whether you're in a solar program. If you're enrolled in Dominion's residential Solar Choice program, time-of-use enrollment rules are different — confirm how that interacts with your situation.

Heads up: the periods may change July 1, 2026

Dominion has proposed updates to its time-of-use rates that, if approved, take effect July 1, 2026 — including shifting the on-peak, off-peak, and super-off-peak hours and treating weekends and holidays the same as weekdays. If you're switching around that date, don't assume the older published hours still apply. I cover what's proposed in Dominion's 2026 time-of-use rate changes, and you should confirm the live periods with Dominion at the time you switch.

After you switch: what changes day to day

Once you're on Rate 7, the habit that saves money is simple: avoid heavy grid usage during the on-peak window. With a battery, that happens automatically — it charges overnight on the cheap super-off-peak rate and carries your house through the expensive window. Without a battery, you're doing it manually: shifting laundry, dishwashing, EV charging, and pre-cooling the house to off-peak hours, and easing off during the peak. Doable, but the battery is what makes it effortless and consistent — and consistency is what keeps the demand charge low.