How much does it cost to heat and cool a 2,000 sq ft home in South Carolina?

In South Carolina (15.1¢/kWh via Dominion Energy SC / Duke), a 2,000 sq ft home averages $434/year ($36/month) with a high-efficiency heat pump, $521/year with a natural gas furnace and central AC, and $1,170/year with electric baseboards.

Are heat pumps cheaper to run than gas furnaces in South Carolina?

At South Carolina's natural gas rate of $1.58/therm, the economic break-even electricity price for a COP 3.1 heat pump is 18.2¢/kWh. Comparing this against South Carolina's residential electricity rate of 15.1¢/kWh determines annual operating savings.

South Carolina Heating & Cooling Cost Calculator (2026)

2,000 Sq Ft Heat Pump Bill

$36/mo

SC Electricity / Gas Rate

15.1¢ / $1.58

15-Yr Savings vs Baseboard

+$7,440

South Carolina Annual Heating & Cooling Bills by Home Size

In South Carolina, a 2,000 sq ft home averages $434/year ($36/mo) using a cold-climate heat pump ($300/yr winter heating + $134/yr summer cooling), compared to $521/year with a natural gas furnace and $1,170/year with electric baseboards.

Home Size	Heat Pump (COP 3.1)	Gas Furnace + AC	Baseboard + Window AC	15-Yr Heat Pump Savings
1,000 Sq Ft	$217/yr ($18/mo)	$261/yr ($22/mo)	$585/yr ($49/mo)	+$1,920
1,500 Sq Ft	$325/yr ($27/mo)	$391/yr ($33/mo)	$878/yr ($73/mo)	+$4,695
2,000 Sq Ft	$434/yr ($36/mo)	$521/yr ($43/mo)	$1,170/yr ($98/mo)	+$7,440
2,500 Sq Ft	$542/yr ($45/mo)	$652/yr ($54/mo)	$1,463/yr ($122/mo)	+$10,215
3,000 Sq Ft	$651/yr ($54/mo)	$782/yr ($65/mo)	$1,756/yr ($146/mo)	+$12,975
3,500 Sq Ft	$759/yr ($63/mo)	$912/yr ($76/mo)	$2,048/yr ($171/mo)	+$15,735

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Verify 2026 Federal 25C Tax Credit & Dominion Energy SC / Duke rebate eligibility and compare turnkey contractor pricing for a 3.0-Ton system (2,000 sq ft).

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