Portable AC Electricity Calculator in South Carolina

A portable ac in South Carolina costs about $33.78 a month ($410.98 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
1,100 W
Typical usage pattern
6 hours/day
Typical monthly cost
$33.78
Typical yearly cost
$410.98

Key metrics

MetricValue
South Carolina average rate17.06 ¢/kWh
Assumed wattage1,100 W
Typical usage pattern6 hours/day
Typical monthly cost$33.78
Typical yearly cost$410.98

Portable AC in South Carolina vs U.S. benchmark

South Carolina monthly estimate
$33.78
U.S. monthly estimate
$38.25
Difference
-$4.47
State rate
17.06 ¢/kWh

Calculator assumptions

This calculator uses a typical wattage range of 700-1,400 W, and we assume 1,100 watts for 6 hours/day. The formula is kWh = (watts × hours) / 1000.

At this profile, the appliance uses 198.0 kWh per month and 2409.0 kWh per year.

Appliance calculator scenarios

ScenarioHours/dayAnnual energySouth Carolina monthlyU.S. monthlySouth Carolina yearly
Light usage3 hours/day1204.5 kWh$16.89$19.13$205.49
Typical usage6 hours/day2409.0 kWh$33.78$38.25$410.98
Heavy usage9 hours/day3613.5 kWh$50.67$57.38$616.46

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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