Estimate a monthly residential electricity bill in Hawaii from usage and an approximate rate.
Monthly bill = usage in kWh × an approximate Hawaii residential rate of ¢40.3/kWh, plus any fixed monthly charge. Rates vary by utility, time of use and season.
Bill
Bill = kWh × rate + fixed charge
Approximate rate only; confirm with your utility's current tariff.
No — it is a state average reference. Your utility's rate depends on plan, time-of-use and demand charges.
Check time-of-use rates, adjust thermostat load, and compare suppliers if your state allows competitive retail.