Electricity rates — Hawaii
A household in Hawaii using 1,000 kWh a month pays about $4,214.40 a year on the cheapest of 4 generally available plans — SCHEDULE ARD TOU R - Residential Time of Use - Single Phase from Hawaiian Electric Co Inc, in effect since March 2026. Rates checked September 23, 2026. A further 6 restricted and 2 older schedules are priced further down but not ranked.
Every priced plan, 1,000 kWh/mo
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| SCHEDULE R RESIDENTIAL SERVICE - Single Phase Low Income ProvisionHawaiian Electric Co Inctiered · in effect since April 2017 · low-income rate | $3,295.32 | −$919.08 | 27.5¢ |
| SCHEDULE R RESIDENTIAL SERVICE - Three Phase Low Income ProvisionHawaiian Electric Co Inctiered · in effect since April 2017 · low-income rate | $3,403.32 | −$811.08 | 28.4¢ |
| SCHEDULE RESIDENTIAL TOU EV RESIDENTIAL TIME-OF-USE SERVICE WITH ELECTRIC VEHICLE PILOT-SINGLE PHASEHawaii Electric Light Co Inctime-of-use · tiered · in effect since June 2015 · pilot programme | $3,854.76 | −$359.64 | 32.1¢ |
| SCHEDULE RESIDENTIAL TOU EV RESIDENTIAL TIME-OF-USE SERVICE WITH ELECTRIC VEHICLE PILOT-Three PhaseHawaii Electric Light Co Inctime-of-use · tiered · in effect since June 2015 · pilot programme | $3,896.76 | −$317.64 | 32.5¢ |
| SCHEDULE TOU-R RESIDENTIAL TIME-OF-USE SERVICE - Single PhaseHawaii Electric Light Co Inctime-of-use · tiered · in effect since June 2015 · older schedule, not ranked | $4,140.72 | −$73.68 | 34.5¢ |
| SCHEDULE TOU-R RESIDENTIAL TIME-OF-USE SERVICE - Three PhaseHawaii Electric Light Co Inctime-of-use · tiered · in effect since June 2015 · older schedule, not ranked | $4,194.72 | −$19.68 | 35.0¢ |
| SCHEDULE ARD TOU R - Residential Time of Use - Single Phase✓ cheapestHawaiian Electric Co Inctime-of-use · in effect since March 2026 | $4,214.40 | — | 35.1¢ |
| SCHEDULE ARD TOU R - Residential Time of Use - Three PhaseHawaiian Electric Co Inctime-of-use · in effect since March 2026 | $4,225.08 | +$10.68 | 35.2¢ |
| SCHEDULE R RESIDENTIAL SERVICE - Single PhaseHawaiian Electric Co Inctiered · in effect since March 2026 | $4,588.68 | +$374.28 | 38.2¢ |
| SCHEDULE TOU-R RESIDENTIAL TIME-OF-USE SERVICE - Single Phase - Closed RateHawaiian Electric Co Inctime-of-use · tiered · in effect since May 2023 · closed to new customers | $4,625.38 | +$410.98 | 38.5¢ |
| SCHEDULE R RESIDENTIAL SERVICE - Three PhaseHawaiian Electric Co Inctiered · in effect since March 2026 | $4,719.60 | +$505.20 | 39.3¢ |
| SCHEDULE TOU-R RESIDENTIAL TIME-OF-USE SERVICE - Three Phase - Closed RateHawaiian Electric Co Inctime-of-use · tiered · in effect since May 2023 · closed to new customers | $4,721.38 | +$506.98 | 39.3¢ |
Cost across usage levels
The cheapest plan at each consumption level, showing whether the ranking holds as usage changes.
- 500 kWh/mo — cheapest $2,234.76 (SCHEDULE ARD TOU R - Residential Time of Use - Single Phase), dearest $2,488.32, a $253.56 spread
- 1,000 kWh/mo — cheapest $4,214.40 (SCHEDULE ARD TOU R - Residential Time of Use - Single Phase), dearest $4,719.60, a $505.20 spread
- 2,000 kWh/mo — cheapest $8,173.56 (SCHEDULE ARD TOU R - Residential Time of Use - Single Phase), dearest $9,400.56, a $1,227.00 spread
What a typical bill costs
At 1,000 kWh a month the 4 generally available plans here run from $4,214.40 on SCHEDULE ARD TOU R - Residential Time of Use - Single Phase to $4,719.60 on SCHEDULE R RESIDENTIAL SERVICE - Three Phase, with a median of $4,406.88.
Effective rates, bill divided by kilowatt-hours, span 35.1¢ to 39.3¢ per kWh at that usage.
What households in Hawaii pay, by EIA's count
Over the 12 months to June 2026, residential electricity in Hawaii averaged 42.7¢ per kWh, the highest of the 50 states and DC and 139% above the US average of 17.9¢. Next down is California (32.9¢).
EIA lists 4 utilities serving homes in Hawaii. By homes served, the largest 4 are Hawaiian Electric Co Inc (276,206), Hawaii Electric Light Co Inc (78,386), Maui Electric Co Ltd (61,811), and Kauai Island Utility Cooperative (30,109). Member-owned cooperatives supply about 7% of its households.
Hawaii homes used the most electricity in August and the least in February (2021–2025): a summer peak, 1.3 times the lightest month. Per kWh, January and December were within 4.2% of each other.
The utilities with a ranked plan on this page serve about 65% of Hawaii's households: Hawaiian Electric Co Inc (276,206). Their median plan at 1,000 kWh a month works out to 36.7¢ per kWh, 14% below EIA's average, which is why this page compares that median with other states'.
| Average price, 12 months to June 2026 | 42.7¢ |
|---|---|
| Among the 50 states and DC | 51 of 51, 1 = lowest |
| US average, same months | 17.9¢ |
| Change on the 12 months before | ↑ +3.0% |
| Change over five years | ↑ +39.4% (US ↑ +34.7%) |
| Average price in 2001 | 16.3¢ |
| Households, 2024 | 426,573 |
| Average use per home | 518 kWh a month (US 872) |
| Average bill per home | $222.04 a month (US $143.64) |
Every year’s figure
| Year | Hawaii | US |
|---|---|---|
| 2025 | 40.6¢ | 17.3¢ |
| 2024 | 42.9¢ | 16.5¢ |
| 2023 | 42.4¢ | 16.0¢ |
| 2022 | 43.0¢ | 15.0¢ |
| 2021 | 33.5¢ | 13.7¢ |
| 2020 | 30.3¢ | 13.2¢ |
| 2019 | 32.1¢ | 13.0¢ |
| 2018 | 32.5¢ | 12.9¢ |
| 2017 | 29.5¢ | 12.9¢ |
| 2016 | 27.5¢ | 12.5¢ |
| 2015 | 29.6¢ | 12.7¢ |
| 2014 | 37.0¢ | 12.5¢ |
| 2013 | 37.0¢ | 12.1¢ |
| 2012 | 37.3¢ | 11.9¢ |
| 2011 | 34.7¢ | 11.7¢ |
| 2010 | 28.1¢ | 11.5¢ |
| 2009 | 24.2¢ | 11.5¢ |
| 2008 | 32.5¢ | 11.3¢ |
| 2007 | 24.1¢ | 10.7¢ |
| 2006 | 23.3¢ | 10.4¢ |
| 2005 | 20.7¢ | 9.4¢ |
| 2004 | 18.1¢ | 8.9¢ |
| 2003 | 16.7¢ | 8.7¢ |
| 2002 | 15.6¢ | 8.4¢ |
| 2001 | 16.3¢ | 8.6¢ |
How Hawaii compares
At 1,000 kWh a month the median plan in Hawaii costs $4,406.88 a year: the 2nd-highest of the 29 states whose indexed plans stand for them, and 2.2× as much as their median of $1,989.30. It sits between Connecticut ($3,572.90) and California ($4,822.64).
Its cheapest open plan, SCHEDULE ARD TOU R - Residential Time of Use - Single Phase from Hawaiian Electric Co Inc at $4,214.40, is the highest of the 29 states' cheapest plans.
8 of its 12 priceable plans price by the hour, the 7th-largest share of any state here.
In the guides: What published electricity plans cost, state by state · What a plan charges by the hour, and what moving a kilowatt-hour is worth
How the answer changes with usage
SCHEDULE ARD TOU R - Residential Time of Use - Single Phase is cheapest at every level tested — $2,234.76 a year at 500 kWh a month, $8,173.56 at 2,000 kWh.
The penalty for a poor choice grows with usage: $253.56 a year at 500 kWh against $1,227.00 at 2,000 kWh.
How these plans are structured
Of 12 priceable plans: 10 tiered, 8 time-of-use.
Fixed monthly charges run from $10.27 to $26.32.
Who provides these plans
These plans come from 2 utilities: Hawaii Electric Light Co Inc, Hawaiian Electric Co Inc.
The largest saving available here
Moving from SCHEDULE R RESIDENTIAL SERVICE - Three Phase to SCHEDULE ARD TOU R - Residential Time of Use - Single Phase saves $505.20 a year at 1,000 kWh a month, with no change in consumption.
What this does not cover
8 of these plans price by the hour, so their figures are marked lower confidence.
New to these terms? The methodology page explains tiered bands, time-of-use periods and fixed charges, and sets out exactly what the rate engine assumes.
Estimate — your actual bill may differ.
Tariff structures from NREL/OpenEI Utility Rate Database (CC0 1.0), retrieved September 23, 2026.
State prices from U.S. Energy Information Administration, electricity retail sales, Hawaii, retrieved September 23, 2026; households and utilities from U.S. Energy Information Administration, Form EIA-861, 2024 (Sales_Ult_Cust_2024.xlsx), retrieved September 23, 2026. US Government public domain.