Billowatt

Cost to Run a Ductless Mini-Split in Delaware

Delaware's average residential electricity rate is 18.5¢/kWh as of July 2026 — the 33rd cheapest in the country, 1% above the U.S. average. At typical usage (8 hours/day), a ductless mini-split here costs $35.99 per month.

Per hour

$0.15

at 400–2,000 W

Per day

$1.18

8 hours/day

Per month

$35.99

195 kWh

Per year

$432

2,336 kWh

By usage level in Delaware

Usage Per day Per month Per year
Light (4 hrs/day) $0.59 $18.00 $216
Typical (8 hrs/day) $1.18 $35.99 $432
Heavy (16 hrs/day) $2.37 $71.99 $864

Delaware vs. the rest of the country

Monthly cost at typical usage.

Delaware $35.99
South average $31.61
U.S. average $35.60

Frequently asked questions

How much does it cost to run a ductless mini-split in Delaware?

At Delaware's current average residential rate of 18.5¢/kWh (July 2026), a ductless mini-split with typical usage costs about $1.18 per day, $35.99 per month, or $432 per year.

Is running a ductless mini-split in Delaware more expensive than average?

It's almost exactly the U.S. average: $35.99 per month here versus $35.60 nationally.

What does electricity cost in Delaware right now?

Delaware residents pay an average of 18.5¢ per kWh as of July 2026 — the 33rd cheapest rate of the 51 U.S. jurisdictions we track.

Ductless Mini-Split costs in nearby states

What else costs to run in Delaware

See the full Delaware electricity cost guide →