Hawaii (HI) electricity and natural gas rates
Electricity
48.00¢
per kWh
Natural gas
$6.34
per therm
Gas and electricity in the same unit
A therm is 29.3 kilowatt hours of energy, so Hawaii's gas works out at 21.63¢ per kWh against 48.00¢ for electricity.
That compares the energy you buy, not the heat you get. A furnace throws away a fifth of every therm up the flue, while a heat pump delivers two to three times the heat in a kilowatt hour — so the cheaper unit here is not automatically the cheaper way to heat a house.
Residential sector, US Energy Information Administration, 2026-07. Updated monthly.
How Hawaii compares
At 48.00¢ per kWh, Hawaii is above the national average of 19.26¢, making it the 51st cheapest of the 51 states we track.
What a typical Hawaii household uses
Electricity a month
514 kWh
Bill a month
$224
Households in Hawaii use 40% less electricity than the national average and pay 49% more than average. That is a price problem rather than a consumption one — at 48.00¢ a kilowatt hour, even a modest amount of electricity adds up. Cooling explains most of it: Hawaii runs about 3,600 cooling degree days a year against 0 heating ones, so summer, not winter, sets the bill.
More on this: the average electric bill in Hawaii, including how far it swings between seasons.
Averaged over twelve months across 451,588 residential accounts in Hawaii. Source: EIA.
What this means for heating
Hawaii sees around 0 freezing nights a year. Whether a heat pump beats a furnace here depends on the gap between those two prices above — not on the equipment.
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More for Hawaii
Everything in Hawaii
All five figures at once
Average electric bill in Hawaii
What households pay
Cost to run AC in Hawaii
Per hour and per year
Cost to heat a home in Hawaii
Gas vs heat pump
Heat pump cost in Hawaii
To install, and vs a furnace
Furnace replacement cost in Hawaii
What a new one costs
Solar payback in Hawaii
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