Law reference: Hawaii Revised Statutes 249-31
Source: afdc.energy.gov/laws/hawaii
Note: Optional RUC (Per-mile) program available.
Hawaii EV Charging Costs (2026)
Data updated: March 7, 2026
Hawaii EV charging cost is an island-utility question, not a single statewide rate. Hawaii PUC confirms each major island runs its own grid, with HECO serving Oahu, MECO serving Maui/Lanai/Molokai, and HELCO serving Hawaii Island. Hawaii remains one of the highest-cost electricity markets in the U.S., so tariff window selection and charging timing usually matter more than in mainland low-rate states. For monthly planning, island utility structure and on-peak exposure are the main levers.
Average Rate
$0.42/kWh
Rank #50 out of 50
EV Adoption
3.3%
State adoption estimate
Hawaii Electricity Rates
Current rates by utility territory, with EV program details.
$0.42/kWh
$0.24/kWh above US average
Public Level 2 (est.): $0.45/kWh ($0.38-$0.59/kWh)
Public DC fast (est.): $0.71/kWh ($0.62-$0.85/kWh)
Estimated public charging prices derived from local electricity rates. Actual prices vary by network, location, and fees.
Many utilities offer off-peak EV charging options that can lower effective charging costs.
| Utility | Avg Rate |
|---|---|
| HECO (Oahu) | $0.4287/kWh (published residential benchmark) |
| MECO (Maui County) | $0.4359/kWh (published residential benchmark, Maui) |
| HELCO (Hawaii Island) | $0.4831/kWh (published residential benchmark) |
| KIUC (Kauai Island Utility Cooperative) | $0.11153/kWh base + monthly ACC + $30/mo service (Schedule A tariff; verify monthly total) |
Hawaii Utility Context for EV Charging Costs
For Hawaii drivers, the largest controllable cost lever is matching charging time to island tariff structure. As of early 2026, use utility rate pages and enrollment notices before setting monthly EV assumptions.
- HECO (Oahu): Hawaiian Electric states Shift and Save is closed to new participants as of Feb. 1, 2025, but existing participants may continue. The Jan. 1, 2025 residential TOU values published by Hawaiian Electric are 15.8 cents/kWh daytime (9 a.m.-5 p.m.), 47.3 cents evening peak (5 p.m.-9 p.m.), and 31.5 cents overnight (9 p.m.-9 a.m.).
- MECO (Maui, Lanai, Molokai): Hawaiian Electric's Jan. 1, 2025 TOU values list Maui at 18.2 cents daytime, 54.7 cents evening peak, and 36.5 cents overnight.
- HELCO (Hawaii Island): Hawaiian Electric's Jan. 1, 2025 TOU values list 21.5 cents daytime, 64.5 cents evening peak, and 43.0 cents overnight.
- KIUC (Kauai): KIUC publishes Schedule A residential base energy at 11.1530 cents/kWh, with a monthly Adjustment Clause Cost (ACC) and a $30 monthly service charge; the all-in residential total therefore changes month to month.
- Hawaiian Electric's EV enrollment page states home EV customers may remain on current residential service or qualify for a TOU option depending on eligibility and meter status. As of early 2026, verify active enrollment pathways directly with your island utility.
EIA: Hawaii Electricity ProfileHawaii PUC: Energy Utilities by Island (Updated 7/2025)Hawaiian Electric: Average Price of ElectricityHawaiian Electric: Shift and Save Closure Notice (Jan 9, 2025)Hawaiian Electric: Shift and Save ProgramHawaiian Electric: EV Rates and EnrollmentKIUC: RatesKIUC: Rate Schedules (PDF)HDOT: NEVI Chargers with NACS Connectors (Feb 2, 2026)HDOT: Aloha Tower NEVI Station OpeningHiRUC: Hawaii Road Usage Charge ProgramAFDC: Hawaii Laws and IncentivesHSEO: Hawaii Clean Energy Initiative
Rates updated monthly | Source: EIA and utility filings.
Hawaii EV Registration Fee
Hawaii currently lists a $50.00 annual EV fee, with road-usage-charge transition milestones in law by 2028. See source for current year calculation.
Hawaii Local EV Charging Insights
These Hawaii-specific factors usually explain why two drivers with similar mileage can see materially different monthly costs.
- HDOT's Feb. 2, 2026 NEVI update says Hawaii has two open NEVI sites (Oahu Aloha Tower and Maui Kahului), each with four 150 kW DC fast chargers, and plans 11 NEVI stations statewide with additional sites under construction on Maui and Kauai.
- The same HDOT update lists NEVI session pricing at $0.44/kWh from 9 a.m. to 5 p.m. and $0.57/kWh from 5 p.m. to 9 a.m. A prior HDOT opening notice for Aloha Tower also published a $0.50/minute idle fee after a five-minute grace period once a vehicle reaches 100% SOC.
- Hawaii's road funding model changed for EV owners: the HiRUC program begins July 1, 2025, with a choice of $8 per 1,000 miles (capped at $50/year) or a flat $50 annual amount; starting July 1, 2028, EV drivers shift to per-mile RUC. PHEVs are not eligible for the HiRUC program at launch; as of early 2026, verify current eligibility on the official HiRUC site.
- HSEO's Hawaii Clean Energy Initiative reiterates the 2045 clean-energy direction and cites Executive Order 25-01 (Jan. 2025), which accelerates the electricity transition on Hawaii, Kauai, and Maui counties by 2035. AFDC also cites Hawaii law requiring EV access to HOV lanes until EVs reach at least 40% of new vehicle sales.
EV Charging Costs by City in Hawaii
View more Hawaii cities ->| City | Avg Rate | Monthly Cost Estimate | Action |
|---|---|---|---|
| Honolulu | $0.42/kWh | $110.53/month | View city page -> |
How Hawaii Compares to Selected U.S. States
| State | Rate | Rank |
|---|---|---|
| Hawaii (Current) | $0.42/kWh | #50 |
| California | $0.35/kWh | #49 |
| Washington | $0.13/kWh | #16 |
| Oregon | $0.15/kWh | #25 |
| Idaho | $0.12/kWh | #3 |
| Montana | $0.13/kWh | #10 |
Hawaii has no contiguous U.S. neighbors. Rates shown are for reference only.
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Frequently Asked Questions
How much does it cost to charge an EV in Hawaii?
Home charging in Hawaii averages around $0.42/kWh. Public Level 2 sessions are estimated around $0.38-$0.59/kWh, while DC fast charging is estimated around $0.62-$0.85/kWh depending on network and membership. Final cost can also include session or idle fees.
What is the cheapest time to charge an EV in Hawaii?
Across HECO (Oahu), MECO (Maui County islands), and HELCO (Hawaii Island), the lowest-cost window is 9 p.m.-9 a.m., with on-peak at 5 p.m.-9 p.m. Published TOU values are 31.5 cents off-peak vs 47.3 cents peak on Oahu, 36.5 vs 54.7 on Maui, and 43.0 vs 64.5 on Hawaii Island. Charging after 9 p.m. is the most consistent way to lower home charging cost across islands.
How much does it cost to fully charge a Tesla Model Y in Hawaii?
Charging a Tesla Model Y from near-empty in Hawaii costs approximately $31.88 at home, $34.16 at a public Level 2 station, and $53.89 at a DC fast charger, based on EPA efficiency of 25.3 kWh/100 miles and an estimated 300-mile range.
Which utility serves each Hawaii island for EV charging planning?
Hawaii PUC lists HECO for Oahu, MECO for Maui/Lanai/Molokai, HELCO for Hawaii Island, and KIUC for Kauai. Because each island has its own grid and tariff structure, EV charging assumptions should be built by island utility, not statewide averages.
Are Shift and Save TOU rates open to new customers in 2026?
Hawaiian Electric states the Shift and Save program closed to new participants on Feb. 1, 2025 after the one-year pilot period. Existing participants may continue, and the utility said the PUC was expected to outline next steps. As of early 2026, verify current enrollment status on the utility's TOU and EV rate pages.
What is the Hawaii EV road usage charge in 2026?
HiRUC and AFDC references show Hawaii's EV road usage charge starts July 1, 2025 with either $8 per 1,000 miles (capped at $50/year) or a flat $50 annual option. Beginning July 1, 2028, EV owners transition to the per-mile road usage charge structure. Maui County EV owners also pay a separate $100 annual county registration surcharge in addition to the state HiRUC.
Do Hawaii's public fast-charging rates change by time of day?
Yes at HDOT NEVI sites. HDOT's Feb. 2026 notice lists $0.44/kWh from 9 a.m. to 5 p.m. and $0.57/kWh from 5 p.m. to 9 a.m., with chargers open 24/7. That means trip timing can materially change fast-charging cost, especially for repeated inter-island airport corridor use.
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Internal Resources
Data updated monthly where available.