Hawaiian Electric Co Inc
6 residential tariffs on file in HI, ranging from $0.3671 to $0.3991 per kWh at 1,000 kWh a month.
The gap between this utility's cheapest and most expensive residential tariff is $383 a year for a household using 1,000 kWh a month. Tariffs are not always open to everyone — some require electric heating, a demand meter or program enrollment — so check eligibility with the utility before switching.
Residential tariffs
| Tariff | Structure | Filed | Fixed/mo | $/kWh @1,000 | Annual |
|---|---|---|---|---|---|
| SCHEDULE ARD TOU R - Residential Time of Use - Single Phase | Time-of-use | 2026 | $21.26 | $0.3671 | $4,405.13 |
| SCHEDULE ARD TOU R - Residential Time of Use - Three Phase | Time-of-use | 2026 | $22.15 | $0.3680 | $4,415.81 |
| SCHEDULE R RESIDENTIAL SERVICE - Single Phase | Tiered | 2026 | $15.41 | $0.3824 | $4,588.63 |
| SCHEDULE R RESIDENTIAL SERVICE - Three Phase | Tiered | 2026 | $26.32 | $0.3933 | $4,719.55 |
| SCHEDULE TOU-R RESIDENTIAL TIME-OF-USE SERVICE - Three Phase - Closed Rate | Time-of-use + tiered | 2023 | $22.23 | $0.3991 | $4,788.61 |
| SCHEDULE TOU-R RESIDENTIAL TIME-OF-USE SERVICE - Single Phase - Closed Rate | Time-of-use + tiered | 2023 | $14.23 | not priced | — |
Solar and net metering
Hawaiian Electric Co Inc reports 64,369 residential solar installations to the EIA, totalling 336.338 MW. That means exported power is likely to earn something here, though what an exported kWh is worth depends on state rules rather than on the tariff in most cases.
For reference, Hawaiian Electric Co Inc collected an average of $0.4287 per kWh from residential customers in the most recent EIA survey, across all its tariffs and all usage levels. A single tariff priced at 1,000 kWh a month will differ from that blended figure.