Cost to run an electric water heater in North Carolina

$0.60/hour

Electric Water Heater at 4,000 W in North Carolina (14.95¢/kWh) · $54.54/month at 3 h/day

By hours of use

Use	Per day	Per month	Per year
1 h/day	$0.60	$18.18	$218.27
2 h/day	$1.20	$36.36	$436.54
3 h/day	$1.79	$54.54	$654.81
4 h/day	$2.39	$72.72	$873.08
8 h/day	$4.78	$145.43	$1,746.16
12 h/day	$7.18	$218.15	$2,619.24
24 h/day	$14.35	$436.30	$5,238.48

Tank water heaters use 3,000-5,500 W elements; a family typically runs them 2-4 hours a day. Heat-pump models use about a third.

How much does it cost to run an electric water heater in North Carolina?

At 4,000 W and 14.95¢/kWh: $0.60 per hour, $1.79 per day and $54.54 per month at 3 h/day.

How does North Carolina compare with other states?

The same use costs $46.40/month in Nevada (cheapest) and $172.11/month in Hawaii (most expensive); the US average is $66.25.

Price: EIA Electric Power Monthly, Table 5.6.A (residential, August 2026 preliminary; released October 23, 2026).

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