What is the average electricity rate in Charleston, South Carolina?

The average residential electricity rate in Charleston is approximately 16.02¢/kWh per kWh. The average household pays around $169 per month for electricity.

What is the average natural gas bill in Charleston?

Natural gas customers in Charleston pay an average of $68 per month. The rate is approximately $1.64/therm per therm.

Which electric company serves Charleston, South Carolina?

Electricity in Charleston is distributed by Dominion Energy South Carolina, Inc and Berkeley Electric Coop Inc. Contact your provider at your local service address to confirm which utility serves your home.

Which gas company serves Charleston?

Charleston natural gas service is provided by Dominion Energy SC (SCE&G Gas) and Piedmont Natural Gas (Duke Energy). Call them directly for new service connections or to report a gas leak.

How do Charleston electricity rates compare to South Carolina averages?

Charleston's electricity rate of 16.02¢/kWh is below the South Carolina state average of 16.18¢/kWh. This can reflect a municipal utility or favorable regional generation mix.

How do I start or stop utility service in Charleston?

To start electric service in Charleston, contact Dominion Energy South Carolina, Inc and Berkeley Electric Coop Inc. For gas service, contact Dominion Energy SC (SCE&G Gas) and Piedmont Natural Gas (Duke Energy). You'll typically need a photo ID, your new address, and a move-in date. Service can usually be established within 1-3 business days.

Charleston, South Carolina Gas & Electricity Rates — Utility Providers & Savings 2026

Gas & Electricity in Charleston, South Carolina

Charleston is served by Dominion Energy South Carolina, Inc and Berkeley Electric Coop Inc. Utilities covering Charleston County report an average residential electricity rate of 14.36¢/kWh — above the South Carolina state average of 13.20¢/kWh — and a typical monthly electric bill of $144. Natural gas in Charleston is distributed by Dominion Energy SC (SCE&G Gas).

Compared to the South Carolina state average of 16.18¢/kWh/kWh, Charleston's electricity rate of 16.02¢/kWh is 0.16¢ below the South Carolina average. As South Carolina has a regulated market, your utility is determined by your address.

Electric Utility in Charleston

Dominion Energy South Carolina, Inc
Berkeley Electric Coop Inc

Natural Gas Utility in Charleston

Dominion Energy SC (SCE&G Gas)
Piedmont Natural Gas (Duke Energy)

Charleston vs South Carolina Energy Rates

Metric	Charleston	South Carolina Average	US Average
Electric Rate (¢/kWh)	16.02¢	16.18¢	16.00¢
Gas Rate ($/therm)	$1.64	$1.64	$1.47
Monthly Electric Bill	$169	$148	$117
Monthly Gas Bill	$68	$68	$73

Energy Assistance Programs for Charleston Residents

As a South Carolina city, Charleston residents can access the following state and local assistance programs:

✅ SC LIHEAP
✅ SC Crisis Intervention Program (CIP)
✅ Dominion Energy SC Share the Warmth
✅ SC Weatherization Assistance

Energy-Saving Tips for Charleston Residents

✓ Run your AC on a "dry" mode or use a standalone dehumidifier — moisture makes heat feel worse.
✓ Clean or replace AC filters monthly during summer to maintain airflow and efficiency.
✓ Consider a mini-split heat pump — it's highly efficient for both cooling and mild-winter heating.
✓ Install Energy Star certified windows to reduce solar heat gain.
✓ Use exhaust fans in bathrooms and kitchens to remove humidity at the source.

FAQ — Gas & Electricity in Charleston, South Carolina

The average residential electricity rate in Charleston is approximately 16.02¢/kWh per kWh. The average household pays around $169 per month for electricity.
Natural gas customers in Charleston pay an average of $68 per month. The rate is approximately $1.64/therm per therm.
Electricity in Charleston is distributed by Dominion Energy South Carolina, Inc and Berkeley Electric Coop Inc. Contact your provider at your local service address to confirm which utility serves your home.
Charleston natural gas service is provided by Dominion Energy SC (SCE&G Gas) and Piedmont Natural Gas (Duke Energy). Call them directly for new service connections or to report a gas leak.
Charleston's electricity rate of 16.02¢/kWh is below the South Carolina state average of 16.18¢/kWh. This can reflect a municipal utility or favorable regional generation mix.
To start electric service in Charleston, contact Dominion Energy South Carolina, Inc and Berkeley Electric Coop Inc. For gas service, contact Dominion Energy SC (SCE&G Gas) and Piedmont Natural Gas (Duke Energy). You'll typically need a photo ID, your new address, and a move-in date. Service can usually be established within 1-3 business days.