Hawaii (HI) Residential Power Analysis
How Much Does It Cost to Run a Tankless Electric Water Heater (18kW Whole Home) in Hawaii?
In Hawaii, running a Tankless Electric Water Heater (18kW Whole Home) (18000W) costs an estimated $11.68 per day or $355.18 per month, based on the current average residential electricity rate of 43.25¢ per kWh.
Advertisement • Leaderboard (728x90)
Hourly Cost $7.785 Per operating hour
Daily Cost $11.68 Based on 1.5h/day usage
Monthly Cost $355.18 ~821.2 kWh per month
Annual Cost $4262.29 Total yearly electric impact
How Hawaii's Rates Compare to the U.S. National Average
The average residential electricity rate in Hawaii is 43.25¢/kWh, which is 170.3% higher than the national benchmark of 16.0¢/kWh.
In Hawaii $355.18 / month
U.S. National Average $131.40 / month
Because electricity costs in Hawaii are above average, reducing the daily duty cycle or upgrading to an Energy Star certified model yields substantial annual savings.
Interactive Tool v2
Tankless Electric Water Heater (18kW Whole Home) Power & Outage Calculator
Hourly $0.00
Daily $0.00
Monthly $0.00
Yearly $0.00