Pre-filled with Hawaiian Electric's approximate average residential rate for Oahu, Maui, and Hawaii Island — adjust to match your actual bill's rate for precision.
Hawaiian Electric serves most of Hawaii's population with the highest average residential electricity rates in the country, making solar payback among the fastest in the nation despite net metering being largely closed to new customers.
Hawaiian Electric serves Oahu, Maui, and Hawaii Island, and its approximate average residential rate shown here is a planning estimate — actual bills depend on your specific rate plan, tier, time-of-use schedule, and any seasonal adjustments. For your exact current rate, check a recent bill rather than relying on any published average, including this one.
Once you know your real rate, run it through our full electricity cost calculator for any specific appliance, or the kWh usage from bill calculator if you want to reverse-engineer your monthly usage from a total bill amount.
No — most utilities including Hawaiian Electric offer multiple rate plans (tiered, time-of-use, flat) and rates can vary by usage level or time of day, so this is an approximate average, not a guaranteed figure for every account.
Utility rates typically adjust periodically based on regulatory filings, fuel costs, and infrastructure investment — checking a recent bill is always more accurate than relying on a fixed published number.