Independent rate reference - not affiliated with any utility or energy supplier. Data: EIA Electric Power Monthly, May 2026.Full disclaimer
ElectricityRatePerKWh

HECO (Hawaiian Electric) Electricity Rate per kWh in 2026

Residential Rate
42.97¢
Commercial
38.12¢
Customers
0.5M
Rate Type
tiered

How much does HECO charge per kWh in 2026?

HECO’s estimated effective residential rate is about 42.97 cents per kWh as of May 2026. A typical home using 1,000 kWh a month pays roughly $448, including the about $18 monthly customer charge. Commercial service runs about 38.12c/kWh. This is a representative average; your exact rate depends on the tariff, season, and fuel and rider charges on HECO’s official rate schedule.

About HECO

HECO (Hawaiian Electric) serves approximately 0.5 million residential customers across HI. The estimated effective residential rate is about 42.97 cents per kWh as of May 2026 - a representative average; see the official tariff schedule for your exact rate.

Service area: Oahu (Hawaiian Electric), Maui County (Maui Electric), Lanai (Lanai Customer Service)

Parent company: HEI (Hawaiian Electric Industries)

Recent rate case: Rates are set through Hawaii PUC proceedings and a fuel/purchased-energy cost adjustment that tracks oil prices; consult the tariff schedule linked above for the current approved pricing.

HECO Bill Calculator: Cost by Monthly Usage

Estimated monthly bill at 42.97c/kWh plus the $18 fixed charge. Formula: kWh x rate + fixed charge.

Monthly usageEstimated bill
250 kWh$125.42/mo
500 kWh$232.85/mo
750 kWh$340.27/mo
1,000 kWh (typical home)$447.70/mo
1,250 kWh$555.13/mo
1,500 kWh$662.55/mo

A representative estimate using the effective average rate. Your exact bill depends on the tariff, season, and fuel and rider charges. Calculate with your own usage ->

Quick Reference
Fixed charge$18/mo
States servedHI
Rate structuretiered
Official tariff schedule ->
Calculate Your Bill

Use our bill calculator for an estimate with your actual kWh usage.

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Frequently Asked Questions

What is the current HECO rate per kWh?+
HECO (Hawaiian Electric)'s estimated effective residential rate is about 42.97 cents per kWh as of May 2026. This is a representative average; your exact rate depends on the tariff, season, and fuel/rider charges shown on the utility's official rate schedule (linked below). The estimated commercial rate is 38.12c/kWh, and the monthly fixed customer charge is roughly $18 regardless of usage.
What rate structure does HECO use?+
HECO (Hawaiian Electric) uses a tiered rate structure. Tiered rates charge a higher rate once your usage exceeds a baseline allowance (typically set at 50-100% of average usage for your climate zone).
How do I calculate my HECO bill from the rate per kWh?+
Multiply your monthly kilowatt-hours by the per-kWh rate, then add the fixed customer charge. Using HECO's estimated effective residential rate of 42.97 cents per kWh and its roughly $18 monthly fixed charge, a home using 750 kWh a month works out to about (750 x $0.4297) + $18 = $340.27 a month. The table above shows the same math across usage levels from 250 to 1,500 kWh. This is a representative estimate; your exact rate depends on the tariff, season, and fuel and rider charges on the official schedule linked above.
How do I find my HECO rate on my bill?+
Your electricity bill shows the total kWh consumed and the charges applied. Look for the 'energy charge' or 'supply charge' line item - this is the per-kWh rate times your usage. Delivery charges (transmission and distribution) are listed separately and represent a significant portion of your total rate. The fixed customer charge appears as a flat line item. Your effective combined rate (all charges / total kWh) may differ from the tariff rate due to the fixed charge amortization.
What recent rate changes has HECO made?+
Rates are set through Hawaii PUC proceedings and a fuel/purchased-energy cost adjustment that tracks oil prices; consult the tariff schedule linked above for the current approved pricing.
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