gridprims

Electric utility · EIA utility id 17539

Dominion Energy South Carolina, Inc

Ownership, as EIA reports it
Investor Owned
States served
SC
Customers in 2025
824,270
Sales in 2025
21,771,302 MWh
Revenue in 2025
$2,889,936,800

U.S. Energy Information Administration · Annual Electric Power Industry Report (Form EIA-861) · data for 2025 · as of Oct 7, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

What it sells and charges

Full service (energy and delivery)

Full service (energy and delivery)
SectorCustomersSales (MWh)RevenueAverage price (cents per kWh)
Residential712,6798,826,931$1,448,334,40016.41
Commercial110,8157,841,795$1,011,295,80012.90
Industrial7765,102,576$430,306,6008.43

Its average price is 9% above the state average for residential customers (15.12 cents per kWh in SC).

How we got this

$1,448,334,400 residential revenue ÷ 8,826,931,000 kWh residential sales = 16.41 cents per kWh

Average price is revenue divided by sales, for full-service customers only. It averages every rate and every month, so one household's price can differ. State averages count revenue from every kind of service and sales only once, as EIA does.

Trends, 2021 to 2025

051015 20212022202320242025 ¢/kWh Residential average price (cents per kWh)
From 2021 to 2025, the residential figure went from 14.66 to 16.41 cents per kWh.
0200,000400,000600,000800,000 20212022202320242025 Customers Customers
From 2021 to 2025, customers went from 771,620 to 824,270.
Trend table
Trend table
YearResidential average price (cents per kWh)Customers
202114.66771,620
202216.22781,613
202314.41788,721
202414.59806,434
202516.41824,270

U.S. Energy Information Administration · Annual Electric Power Industry Report (Form EIA-861), 2021 to 2025 · data for 2021-2025 · as of Oct 7, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Annual peak demand

Not reported to FERC. Only utilities that plan or balance their own system file Form 714.

Its balancing authority, Dominion Energy South Carolina, peaked at 4,999 MW in 2025. That is the balancing authority's peak, not this utility's.

Catalyst Cooperative (PUDL), from FERC Form 714 · Annual peak demand by planning area (FERC Form 714, through PUDL) · data for 2006-2025 · as of Oct 14, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Reliability

Reliability
StateStandardSAIDI with major events (minutes)SAIFI with major eventsSAIDI without major events (minutes)SAIFI without major events
SCIEEE 1366131.081.3481.151.1

SAIDI is the average minutes without power per customer in the year; SAIFI is how many outages the average customer had. Major event days are storms and similar rare days, counted with and without.

Generation it operates

Generation it operates
FuelCapacityNet generation in 2025
Natural gas3,580 MW9,865,533 MWh
Nuclear1,029.6 MW8,114,558 MWh
Hydro831.5 MW703,099 MWh
Bituminous coal771.8 MW2,776,010 MWh
Distillate fuel oil22,451 MWh
RC0 MWh

This is generation the utility operates, not the full mix of power it buys. EIA does not publish that mix for each utility.

Plants it operates

Published rates

22 rates in the OpenEI database, newest updated Nov 12, 2025.

OpenEI (National Laboratory of the Rockies), with rates entered by contributors · U.S. Utility Rate Database (OpenEI) · data for 2026-10 · as of Oct 30, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

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