Is electricity expensive in Delaware?

Delaware's residential average of 19.3¢/kWh is 5% above the U.S. average of 18.3¢/kWh, ranking 34 of 51 jurisdictions (1 = cheapest).

What's the cheapest room air conditioner to run in Delaware?

Among currently certified models, the Brothers 102372 costs the least at about $50 a year at Delaware rates (260 kWh/yr).

How does Delaware compare with other states?

The same median room air conditioner costs $70 a year in Nevada (the cheapest state) and $280 in Hawaii (the priciest). Delaware sits at $103.

Data through June 2026

Cost to run · Delaware · 19.3¢/kWh residential average

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

$103/yr · median certified model

Electricity in Delaware is priced within a few percent of the U.S. average — 19.3¢/kWh — which puts the typical certified room air conditioner at about $103 annually, essentially the national number.

In the national ranking, Delaware lands at 34 of 51 for what a room air conditioner costs to run. Model choice matters as much as geography: at Delaware rates the most efficient certified model (Brothers 102372) costs $50 a year while the most power-hungry (Friedrich KCVL36B30A) costs $404 — a spread of $354 every year. For reference, the national extremes are Nevada (13.1¢/kWh) and Hawaii (52.7¢/kWh); the same median room air conditioner would cost $70 and $280 a year there.

Delaware

$103

US average

$98

Nevada

$70

Hawaii

$280

Median certified room air conditioner (532 kWh/yr) per year, at each rate

The cheapest room air conditioners to run at Delaware rates

Top 10 by certified kWh, priced at 19.3¢/kWh
#	Model	kWh/yr	$/yr in DE
1	Brothers 102372	260	$50
2	Midea MWEUWA-05CRFN8-BCN4	260	$50
3	Vissani VAW05V1KWT	260	$50
4	TCL T05WV9M	274	$53
5	TCL T05WV9MB	274	$53
6	TCL T05WV9R	274	$53
7	TCL T05WV9RB	274	$53
8	TCL W5WC72	274	$53
9	TCL W5WC72-B	274	$53
10	TCL W5WC72M	274	$53

Price any model at Delaware rates

Your rate, your numbers

Annual use (kWh)

Electricity rate

Per day: 28¢
Per month: $8.55
Per year: $103

532 kWh/yr × 19.3¢/kWh = $103/yr

Prefilled with the median certified room air conditioner (532 kWh/yr). Every model page on this site carries its exact certified figure.

Questions, answered with the data

How much does it cost to run a room air conditioner in Delaware?: About $103 a year for the median ENERGY STAR certified room air conditioner, at Delaware's average residential rate of 19.3¢/kWh — that's $8.55 a month.
Is electricity expensive in Delaware?: Delaware's residential average of 19.3¢/kWh is 5% above the U.S. average of 18.3¢/kWh, ranking 34 of 51 jurisdictions (1 = cheapest).
What's the cheapest room air conditioner to run in Delaware?: Among currently certified models, the Brothers 102372 costs the least at about $50 a year at Delaware rates (260 kWh/yr).
How does Delaware compare with other states?: The same median room air conditioner costs $70 a year in Nevada (the cheapest state) and $280 in Hawaii (the priciest). Delaware sits at $103.

Keep digging

Rate source: US EIA, average residential price of electricity, see methodology.