Where New Hampshire Gets Its Electricity
Net generation by source · 12-month average, July 2025 – June 2026.
Generation mix
| Source | Share | Generation |
|---|---|---|
| Natural gas | 31.3% | 5,847 GWh |
| Coal | 0.5% | 93 GWh |
| Nuclear | 52.9% | 9,882 GWh |
| Wind | 2.4% | 453 GWh |
| Solar | 0.0% | 0 GWh |
| Hydro | 6.7% | 1,255 GWh |
| Other | 6.1% | 1,145 GWh |
18.7 TWh generated over the 12 months to June 2026. Shares are of net generation within New Hampshire, 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. New Hampshire generated 442 GWh that way. Counting it on both sides of the ratio takes solar from 0.0% to 2.3%.
How the mix has shifted since 2001
| Source | 2001 | 2025 | Change |
|---|---|---|---|
| Natural gas | 0.8% | 27.5% | +26.7 pts |
| Coal | 24.6% | 1.2% | −23.3 pts |
| Nuclear | 57.7% | 56.4% | −1.2 pts |
| Wind | 0.0% | 2.5% | +2.5 pts |
| Solar | 0.0% | 0.0% | — |
| Hydro | 6.6% | 7.0% | +0.4 pts |
| Other | 10.4% | 5.4% | −5.0 pts |
Compared with the U.S. and nearby states
| Where | Renewable | Carbon-free | Largest source |
|---|---|---|---|
| New Hampshire | 13.5% | 66.4% | Nuclear 52.9% |
| U.S. average | 25.2% | 42.9% | Natural gas 40.7% |
| Vermont | 98.5% | 98.5% | Hydro |
| Maine | 58.1% | 58.1% | Natural gas |
| Massachusetts | 22.3% | 22.3% | Natural gas |
New Hampshire's generation mix in context
Nuclear is the largest source of electricity generation in New Hampshire, supplying 52.9% of the total since June 2025. Carbon-free sources together account for 66.5% of generation, well above the national share of 42.6%. Renewable energy makes up 13.6% of the mix, ranking 34th among the 51 states and DC with generation data.
The generation mix has shifted markedly since 2001. Coal collapsed from 24.6% in 2001 to 1.2% in 2025, while natural gas surged from 0.8% in 2001 to 27.5% in 2025. Wind generation emerged from nothing to reach 2.5% in 2025. Nuclear power edged down slightly from 57.7% in 2001 to 56.4% in 2025, and the renewable share remained essentially flat at 13.4% in 2001 and 13.6% in 2025, held steady by gains in wind and hydro that offset losses elsewhere. Solar ranks 49th among the states, with utility-scale plants contributing nothing to generation, though including rooftop solar raises the share to 2.3%.
Compared with the nation, New Hampshire generates far less from coal—0.6% against 15.8% nationally—and less from gas at 31.1% versus 40.8%. All three bordering states have renewable shares higher than New Hampshire's: Vermont leads at 98.5%, Maine stands at 58.0%, and Massachusetts at 21.2%.
Written from the EIA figures on this page, covering data through May 2026.
Frequently asked questions
›What percentage of New Hampshire's electricity comes from renewable energy?
›What percentage of New Hampshire's power comes from solar?
›Where does New Hampshire get most of its electricity?
›Does New Hampshire still burn coal for electricity?
›Is New Hampshire 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.