Billowatt

Cost to Run a Ductless Mini-Split in Idaho

Idaho's average residential electricity rate is 12.4¢/kWh as of May 2026 — the 1st cheapest in the country, 33% below the U.S. average. At typical usage (8 hours/day), a ductless mini-split here costs $24.13 per month.

Per hour

$0.10

at 400–2,000 W

Per day

$0.79

8 hours/day

Per month

$24.13

195 kWh

Per year

$290

2,336 kWh

By usage level in Idaho

Usage Per day Per month Per year
Light (4 hrs/day) $0.40 $12.06 $145
Typical (8 hrs/day) $0.79 $24.13 $290
Heavy (16 hrs/day) $1.59 $48.25 $579

Idaho vs. the rest of the country

Monthly cost at typical usage.

Idaho $24.13
West average $38.73
U.S. average $35.80

Frequently asked questions

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

At Idaho's current average residential rate of 12.4¢/kWh (May 2026), a ductless mini-split with typical usage costs about $0.79 per day, $24.13 per month, or $290 per year.

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

No — it's cheaper. Idaho's rate is about 33% below the U.S. average: $24.13 per month here versus $35.80 nationally.

What does electricity cost in Idaho right now?

Idaho residents pay an average of 12.4¢ per kWh as of May 2026 — the 1st 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 →