Space Heater Electricity Calculator in South Carolina

A space heater in South Carolina costs about $30.71 a month ($373.61 a year) to run at the state's average rate of 17.06 ¢/kWh. Use this calculator to compare light, typical, and heavy use.

South Carolina average rate
17.06 ¢/kWh
Assumed wattage
1,500 W
Typical usage pattern
4 hours/day
Typical monthly cost
$30.71
Typical yearly cost
$373.61

Key metrics

MetricValue
South Carolina average rate17.06 ¢/kWh
Assumed wattage1,500 W
Typical usage pattern4 hours/day
Typical monthly cost$30.71
Typical yearly cost$373.61

Space Heater in South Carolina vs U.S. benchmark

South Carolina monthly estimate
$30.71
U.S. monthly estimate
$34.78
Difference
-$4.07
State rate
17.06 ¢/kWh

Calculator assumptions

This calculator uses a typical wattage range of 750-1,500 W, and we assume 1,500 watts for 4 hours/day. The formula is kWh = (watts × hours) / 1000.

At this profile, the appliance uses 180.0 kWh per month and 2190.0 kWh per year.

Appliance calculator scenarios

ScenarioHours/dayAnnual energySouth Carolina monthlyU.S. monthlySouth Carolina yearly
Light usage2 hours/day1095.0 kWh$15.35$17.39$186.81
Typical usage4 hours/day2190.0 kWh$30.71$34.78$373.61
Heavy usage6 hours/day3285.0 kWh$46.06$52.16$560.42

Appliance cost reference page

Want the full write-up? The appliance page below uses the same rate and wattage assumptions:

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Source & Method

Source: U.S. Energy Information Administration (EIA) Retail Sales of Electricity. Updated: April 2026. Estimates use the EIA all-in average residential rate — energy, delivery, fixed charges, and utility fees together, not just the electricity itself. Fees are inside the rate, not an extra on top; how your own bill splits fixed versus per-kWh charges varies by utility. For what's inside the all-in rate, see hidden electricity fees; for how rates and estimates are defined, see the methodology hub.

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