Rate Plan Comparator
Utilities publish several plans and rarely tell you which one suits your usage. This prices every plan they offer against the same consumption, and ranks the ones a household can actually move onto today, so the ranking reflects your household rather than a headline rate.
Not every utility. 1210 tariffs from 217 utilities, retrieved up to October 8, 2026. A utility missing here is one that has not been indexed yet.
Cheapest of 2 plans open to every household at Hawaiian Electric Co Inc is SCHEDULE ARD TOU R - Residential Time of Use - Single Phase at $3,859.37 a year.
Cheapest of 2 plans open to every household
$3,859.37a year
SCHEDULE ARD TOU R - Residential Time of Use - Single Phase
in effect since March 2026
The dearest of them costs $283.03 more a year at this usage — about $23.59 a month for the same electricity.
Plans open to every household, cheapest first
| Plan | Per year | vs cheapest | Effective | Confidence |
|---|---|---|---|---|
| SCHEDULE ARD TOU R - Residential Time of Use - Single Phase✓ cheapesttime-of-use · in effect since March 2026 | $3,859.37 | — | 35.7¢ | Medium confidence |
| SCHEDULE R RESIDENTIAL SERVICE - Single Phasetiered · in effect since March 2026 | $4,142.40 | +$283.03 | 38.4¢ | High confidence |
Restricted plans — priced, not ranked (6)
Means-tested, closed to new customers, needing particular equipment, or only part of a bill. Each is priced so a household that qualifies can compare it.
| Plan | Per year | Effective | Confidence |
|---|---|---|---|
| SCHEDULE R RESIDENTIAL SERVICE - Single Phase Low Income Provisiontiered · in effect since April 2017 · low-income rate | $2,973.36 | 27.5¢ | High confidence |
| SCHEDULE R RESIDENTIAL SERVICE - Three Phase Low Income Provisiontiered · in effect since April 2017 · low-income rate | $3,081.36 | 28.5¢ | High confidence |
| SCHEDULE ARD TOU R - Residential Time of Use - Three Phasetime-of-use · in effect since March 2026 · needs three-phase service | $3,870.05 | 35.8¢ | Medium confidence |
| SCHEDULE R RESIDENTIAL SERVICE - Three Phasetiered · in effect since March 2026 · needs three-phase service | $4,273.32 | 39.6¢ | High confidence |
| SCHEDULE TOU-R RESIDENTIAL TIME-OF-USE SERVICE - Single Phase - Closed Ratetime-of-use · tiered · in effect since May 2023 · closed to new customers | $4,323.16 | 40.0¢ | Low confidence |
| SCHEDULE TOU-R RESIDENTIAL TIME-OF-USE SERVICE - Three Phase - Closed Ratetime-of-use · tiered · in effect since May 2023 · closed to new customers | $4,419.16 | 40.9¢ | Medium confidence |
How this was worked out5 assumptions, 3 that could move the total
- Priced against the 2026 calendar. Weekday and weekend day counts differ between years, which moves the total on a time-of-use tariff.No effect on the total
- Weekend rates are applied on Saturday and Sunday. URDB publishes no holiday calendar, so utilities that bill public holidays at weekend rates are not reflected.Effect unknown
- Hours are local clock hours with no daylight-saving shift, matching how time-of-use periods are written in the tariff.No effect on the total
- Monthly totals were spread over each day's hours in the typical pattern of homes in Hawaii, by month and weekday or weekend (NREL/NLR ResStock 2025 Release 1 (AMY2018), timeseries aggregates by state, baseline). A household that uses more in this tariff's peak hours than that pattern pays more than this estimate, and one that uses less pays less.Effect unknown
- No sales or utility tax was applied. Most US jurisdictions add one, so a real bill will be higher.Real bill likely higher
Estimate — your actual bill may differ.
Tariff data: NREL/OpenEI Utility Rate Database (CC0 1.0), retrieved October 8, 2026.
Tariff data: NREL/NLR ResStock 2025 Release 1 (AMY2018), timeseries aggregates by state, baseline (CC BY 4.0), retrieved October 1, 2026.
Indexed so far: 1210 tariffs from 217 utilities. Not every utility. Utilities are reached two ways: by probing population-centre coordinates in 18 states, and by fetching, by EIA number, the utilities that serve most of each state's homes according to EIA-861. A smaller utility outside both — many rural cooperatives and municipal utilities — will not appear here yet.