South Carolina electricity prices - 15.55¢/kWh (June 2026)
Residential price, average bill, and the data-center story
- Residential electricity in South Carolina costs 15.55¢/kWh as of - +5.1% year over year, per U.S. Energy Information Administration data.
- The average South Carolina home used 1,195 kWh that month and paid an average bill of $185.87 (+0.7% vs a year earlier).
- South Carolina has the 31st-highest residential electricity price of the 50 states and DC - 15% below the U.S. average of 18.34¢/kWh.
Price by sector
| Sector | ¢/kWh (June 2026) | 1-yr change |
|---|---|---|
| Residential | 15.55¢ | +5.1% |
| Commercial | 11.62¢ | +5.1% |
| Industrial | 7.55¢ | +4.6% |
Water
Electricity delivered in South Carolina carries 18.10 liters of water per kilowatt-hour consumed at the power plants supplying it (1.20 L/kWh excluding hydropower reservoir evaporation), against a national average of 4.28. That is above the national figure, and it is a property of the grid here rather than of any one building: a data center drawing 100 GWh a year in South Carolina accounts for about 478.2 million gallons of power-plant water before it cools anything. All states ranked →
A data center's water use is roughly twelve times larger once the water evaporated at its power plants is counted. The Colorado River arithmetic → · how the water numbers work →
All states ranked → · Download South Carolina data (CSV) · Glossary