Billowatt

Cost to Run a Ductless Mini-Split in Idaho

Idaho's average residential electricity rate is 13.7¢/kWh as of July 2026 — the 5th cheapest in the country, 25% below the U.S. average. At typical usage (8 hours/day), a ductless mini-split here costs $26.65 per month.

Per hour

$0.11

at 400–2,000 W

Per day

$0.88

8 hours/day

Per month

$26.65

195 kWh

Per year

$320

2,336 kWh

By usage level in Idaho

Usage Per day Per month Per year
Light (4 hrs/day) $0.44 $13.33 $160
Typical (8 hrs/day) $0.88 $26.65 $320
Heavy (16 hrs/day) $1.75 $53.31 $640

Idaho vs. the rest of the country

Monthly cost at typical usage.

Idaho $26.65
West average $38.70
U.S. average $35.60

Frequently asked questions

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

At Idaho's current average residential rate of 13.7¢/kWh (July 2026), a ductless mini-split with typical usage costs about $0.88 per day, $26.65 per month, or $320 per year.

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

No — it's cheaper. Idaho's rate is about 25% below the U.S. average: $26.65 per month here versus $35.60 nationally.

What does electricity cost in Idaho right now?

Idaho residents pay an average of 13.7¢ per kWh as of July 2026 — the 5th cheapest rate of the 51 U.S. jurisdictions we track.

Ductless Mini-Split costs in nearby states

What else costs to run in Idaho

See the full Idaho electricity cost guide →