Cost to run a central air conditioner in Delaware

$0.65/hour

Central Air Conditioner at 3,500 W in Delaware (18.70¢/kWh) · $159.17/month at 8 h/day

By hours of use

Use	Per day	Per month	Per year
1 h/day	$0.65	$19.90	$238.89
2 h/day	$1.31	$39.79	$477.79
4 h/day	$2.62	$79.59	$955.57
8 h/day	$5.24	$159.17	$1,911.14
12 h/day	$7.85	$238.76	$2,866.71
24 h/day	$15.71	$477.52	$5,733.42

A 3-ton central AC typically draws 3,000-4,000 W while running; SEER rating and duct losses matter.

How much does it cost to run a central air conditioner in Delaware?

At 3,500 W and 18.70¢/kWh: $0.65 per hour, $5.24 per day and $159.17 per month at 8 h/day.

How does Delaware compare with other states?

The same use costs $108.27/month in Nevada (cheapest) and $401.60/month in Hawaii (most expensive); the US average is $154.58.

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

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