HECO (Hawaiian Electric) Electricity Rate per kWh in 2026
How much does HECO charge per kWh in 2026?
HECO’s estimated effective residential rate is about 42.97 cents per kWh as of June 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 June 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.
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 ->
Use our bill calculator for an estimate with your actual kWh usage.
Bill Calculator ->HECO on Form EIA-861: 2024 Reported Sales, Customers and Realised Prices
EIA's 2024 Form 861 census lists 3 operating companies behind HECO (Hawaiian Electric Co Inc, utility 19547; Hawaii Electric Light Co Inc, utility 8287; Maui Electric Co Ltd, utility 11843), together serving 416,403 residential accounts (bundled plus delivery-only) in HI across 4 counties. Weighted across those companies, the 2024 average realised residential price for bundled service was 44.06 cents per kWh (total residential revenue divided by total residential sales). The spread runs from 42.87c (Hawaiian Electric Co Inc, Hawaii) to 48.31c (Hawaii Electric Light Co Inc, Hawaii). These are annual averages of what customers actually paid, including fuel and rider charges, so they will not match the tariff rate on a current bill; the estimated effective rate above is the site's forward-looking figure.
| Operating company | EIA # | State | Ownership | Res. accounts | Residential | Commercial | Industrial | Rank in state | Share of res. MWh | Counties | 2025 early release |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Hawaiian Electric Co Inc | 19547 | HI | Investor Owned | 276,206 | 42.87c | 37.03c | 32.82c | 1 of 4 | 56.8% | 1 | 40.54c |
| Hawaii Electric Light Co Inc | 8287 | HI | Investor Owned | 78,386 | 48.31c | 46.02c | 39.73c | 2 of 4 | 16.1% | 1 | not in file |
| Maui Electric Co Ltd | 11843 | HI | Investor Owned | 61,811 | 43.96c | 43.45c | 38.57c | 3 of 4 | 13.7% | 2 | 41.97c |
Data year 2024, EIA-861 final released 3 December 2025. Res. accounts = residential accounts served, bundled plus delivery-only where the company has delivery-only rows; the residential, commercial and industrial prices are the bundled figures (the price basis). Rank is by residential accounts served among the state's utilities with bundled or delivery service; share is the company's share of the state's residential sales in MWh, not of its customers. Delivery-only rows show the wires charge only. The 2025 early-release column is preliminary and unvalidated by EIA.
Source: U.S. Energy Information Administration, Form EIA-861 Annual, 2024 final data (public domain), retrieved 28 August 2026; prices are average realised revenue per kWh, not tariffs. Final 2024 file f8612024.zip (released 3 December 2025) from the EIA-861 detailed data files. Preliminary 2025 figures come from the early-release file f8612025er.zip (4 August 2026), which EIA has not yet validated; they are labelled as such wherever shown and never mixed into a final figure.