Where Hawaii Gets Its Electricity
Net generation by source · 12-month average, July 2025 – June 2026.
Generation mix
| Source | Share | Generation |
|---|---|---|
| Natural gas | 0.0% | 0 GWh |
| Coal | 0.0% | 0 GWh |
| Nuclear | 0.0% | 0 GWh |
| Wind | 5.7% | 535 GWh |
| Solar | 10.1% | 956 GWh |
| Hydro | 0.3% | 24 GWh |
| Other | 84.0% | 7,951 GWh |
9.5 TWh generated over the 12 months to June 2026. Shares are of net generation within Hawaii, which is not the same as what the state consumes — power crosses state lines.
Counting rooftop solar
EIA reports small-scale solar — mostly rooftop panels on homes and businesses — separately, and leaves it out of the state generation total that the mix above is a share of. Hawaii generated 1,701 GWh that way. Counting it on both sides of the ratio takes solar from 10.1% to 23.8%.
How the mix has shifted since 2001
| Source | 2001 | 2025 | Change |
|---|---|---|---|
| Natural gas | 0.0% | 0.0% | — |
| Coal | 15.1% | 0.0% | −15.1 pts |
| Nuclear | 0.0% | 0.0% | — |
| Wind | 0.0% | 6.1% | +6.1 pts |
| Solar | 0.0% | 10.3% | +10.3 pts |
| Hydro | 0.9% | 0.3% | −0.7 pts |
| Other | 83.9% | 83.3% | −0.6 pts |
Compared with the U.S.
| Where | Renewable | Carbon-free | Largest source |
|---|---|---|---|
| Hawaii | 20.3% | 20.3% | Other 84.0% |
| U.S. average | 25.2% | 42.9% | Natural gas 40.7% |
Hawaii's generation mix in context
Other sources supplied 83.9% of Hawaii's electricity generation in the trailing twelve months to May 2026, far larger than any named fuel. Renewable energy accounted for 20.5% of the total, placing the state 26th among the 51 states and DC with generation data. Within renewables, utility-scale solar alone supplied 10.1%, though when rooftop solar is counted the total rises to 23.7%. Wind generated 5.8% and hydro 0.3%.
Hawaii's generation mix has shifted substantially since 2001. Coal, which supplied 15.1% that year, has fallen to zero. Solar rose from nothing to 10.3% in 2025, and wind from nothing to 6.1%. Renewable generation overall grew from 5.6% in 2001 to 21.4% in 2025. Compared with the national mix, Hawaii generates far less from the largest source—gas supplied 40.8% nationally against 0% in the state—and far less from coal, which was 15.8% nationally. Hawaii's renewable share of 20.5% trails the national figure of 24.9% by 4.4 percentage points.
Written from the EIA figures on this page, covering data through May 2026.
Frequently asked questions
›What percentage of Hawaii's electricity comes from renewable energy?
›What percentage of Hawaii's power comes from solar?
›Where does Hawaii get most of its electricity?
›Does Hawaii still burn coal for electricity?
›Is Hawaii getting greener?
How this is measured
Figures are net generation reported to the U.S. Energy Information Administration for all sectors — utilities, independent power producers, and industrial and commercial plants that generate their own power. Shares are of the 12 months to June 2026, rather than a single month, because generation is strongly seasonal: solar peaks in summer and hydro with the spring melt, so one month says more about the weather than about the grid.
“Other” is the reported total minus the six named sources, so the shares add to exactly 100%. It holds geothermal, biomass, petroleum, other gases, and pumped storage — the last of which consumes more electricity than it returns, and so can be negative. Geothermal and biomass are renewable, which is why the renewable share above is slightly larger than wind, solar and hydro added together.
This is generation, not consumption. Electricity crosses state lines freely, so a state can generate more than it uses or rely on imports for a large part of its supply; neither shows up here.