Hawaii Electricity Prices

Hawaii sits in the most expensive quarter of the country — 52.00¢ per kilowatt-hour in May 2026, 1st-highest of 51 and 167.9% above the national benchmark. The index reports the published average, not its causes.

At Hawaii's May 2026 average of 52.00¢/kWh, 10,500 kWh of annual use works out to $5,460 a year — around $455 a month. Running the same 10,500 kWh calculation at the May 2026 national benchmark rate gives $2,038 — a $3,422 gap between the two published averages, more for Hawaii, not a bill either way.

Over the full EIA series the Hawaii jurisdiction average has risen 207% since January 2001, from 16.94¢ to 52.00¢ in May 2026 — a compound 4.5% per year. The path has been unusually smooth — Hawaii is among the steadiest third of jurisdictions month to month.

Yes. The May 2026 average of 52.00¢ per kilowatt-hour is the highest monthly figure Hawaii has recorded across the EIA series, which begins in January 2001. The previous floor for the jurisdiction was 14.73¢ in March 2002.

October. Measured over the 25 complete calendar years the EIA series covers for Hawaii, 2001 through 2025, October runs highest relative to its own year and January runs lowest — a swing of roughly 3.8 percentage points.

Among Hawaii and its land-border neighbours in May 2026, Washington posts the lowest average at 14.95¢ and Hawaii the highest at 52.00¢. That makes Hawaii the most expensive in the group, at 52.00¢.

Almost certainly not exactly, and this is the one caveat that governs every figure on this page. The published value is the EIA residential average across every utility and residential rate class in Hawaii for May 2026 — a benchmark, never a billed amount. Even the jurisdiction figure is not one number — across the trailing year it moved between 38.90¢ in August 2025 and 52.00¢ in May 2026. Your own rate depends on your utility, tariff, usage tier, time-of-use schedule, and fixed monthly charges, none of which this index models. Read your bill for the rate that applies to you.