Is Dominion Energy South Carolina, Inc cheaper than South Carolina Public Service Authority?

No — in 2024 Dominion Energy South Carolina, Inc customers averaged 14.59 cents/kWh versus 11.38 for South Carolina Public Service Authority (EIA-861). South Carolina Public Service Authority was cheaper by 3.21 cents, about $346 per year at 10,800 kWh.

Can I switch from Dominion Energy South Carolina, Inc to South Carolina Public Service Authority?

No — distribution territories are exclusive and set by address; you cannot pick between the two wires companies. South Carolina has no residential supplier shopping either; rates are set in utility-commission proceedings.

Why is Dominion Energy South Carolina, Inc more expensive than South Carolina Public Service Authority?

EIA-861 averages reflect everything customers actually paid — supply costs, delivery rates, riders, and surcharges across each territory. Differences in generation mix, grid investment, storm costs, and customer density between Dominion Energy South Carolina and South Carolina Public Service Authority territory all feed the 3.21-cent gap.

Dominion Energy South Carolina, Inc vs South Carolina Public Service Authority: Which Is Cheaper? (South Carolina, 2024)

South Carolina Public Service Authority customers paid less: an average 11.38¢/kWh in 2024 versus 14.59¢/kWh at Dominion Energy South Carolina, Inc (EIA-861) — a gap of 3.21¢/kWh, worth about $346 per year at typical usage (10,800 kWh/yr). Their territories meet in 1 SC county (Berkeley). You cannot switch wires companies — the territory is set by your address.

Side by side (SC, EIA-861)

Dominion Energy South Carolina, Inc vs South Carolina Public Service Authority — residential averages from federal EIA-861 filings
Metric	Dominion Energy South Carolina, Inc	South Carolina Public Service Authority
2024 average price, ¢/kWh	14.59	11.38
2023 average price, ¢/kWh	14.41	11.38
Annual cost at 10,800 kWh, $/yr	$1,576	$1,229
Residential customers (2024)	696,385	185,529
Ownership	Investor-owned	State-owned
Counties served in SC	11	3

Average price = residential revenue ÷ sales (bundled service): the all-in price customers actually paid, including supply, delivery and riders. Profiles: Dominion Energy South Carolina, Inc · South Carolina Public Service Authority · South Carolina overview.

Where the territories meet

Both utilities file EIA-861 service territory in: Berkeley county (SC, 2024).

Adjoining or overlapping territory in a county does not mean households there can pick between the two — service maps are parcel-level and fixed. The county overlap mainly matters when choosing where to live or comparing town-level costs.

Can you actually choose between them?

No — not for delivery. Distribution territories are exclusive and set by address; Dominion Energy South Carolina, Inc and South Carolina Public Service Authority do not compete for the same meters. South Carolina is a regulated retail market — there is no residential supplier shopping; rates are set in utility-commission proceedings (psc.sc.gov). The price gap above mainly matters when choosing where to live, comparing towns, or benchmarking your bill.

Questions people ask

Is Dominion Energy South Carolina, Inc cheaper than South Carolina Public Service Authority?: No — in 2024 Dominion Energy South Carolina, Inc customers averaged 14.59 cents/kWh versus 11.38 for South Carolina Public Service Authority (EIA-861). South Carolina Public Service Authority was cheaper by 3.21 cents, about $346 per year at 10,800 kWh.
Can I switch from Dominion Energy South Carolina, Inc to South Carolina Public Service Authority?: No — distribution territories are exclusive and set by address; you cannot pick between the two wires companies. South Carolina has no residential supplier shopping either; rates are set in utility-commission proceedings.
Why is Dominion Energy South Carolina, Inc more expensive than South Carolina Public Service Authority?: EIA-861 averages reflect everything customers actually paid — supply costs, delivery rates, riders, and surcharges across each territory. Differences in generation mix, grid investment, storm costs, and customer density between Dominion Energy South Carolina and South Carolina Public Service Authority territory all feed the 3.21-cent gap.

About these numbers. Rates shown are averages computed from federal regulatory filings (EIA Form 861) and public tariff databases — confirm with your utility before making decisions; your actual rate depends on your tariff, usage, and riders. Distribution utility is determined by address and generally cannot be chosen; in retail-choice states you may choose your supplier for the supply portion of the bill. Savings figures use 10,800 kWh/yr (US average residential usage) and are estimates, not quotes. EnergySavings is an independent data project by CertiHomes and is not affiliated with any utility, supplier, or government agency.