U.S. RANK #45 · ME 0.05% OF U.S. GENERATION
Maine Electricity Generation & Grid Mix
In 2025, Maine (ME) generated 16.19 TWh of electricity (0.05% of U.S. generation, ranked #45 among U.S. states). Its #1 electricity source was Natural Gas at 5.56 TWh (34.4% of state output), while low-carbon sources supplied 62.7%.
2025 Generation 16.19 TWh U.S. Rank #45
#1 Power Source Natural Gas 34.4% (5.6 TWh)
Low-Carbon Share 62.7% Wind + Solar: 35.6%
Fossil Share 37.3% 5Y Gen Change: +60.2%
CO2 Intensity 228 gCO2/kWh 3.7 Mt CO2 total
2025 Maine Grid Fuel Mix Breakdown (100% = 16.19 TWh)
Natural Gas: 34.4% (5.56 TWh)
Solar: 17.9% (2.89 TWh)
Wind: 17.8% (2.87 TWh)
Hydroelectric: 16.3% (2.64 TWh)
Bioenergy: 10.8% (1.74 TWh)
Oil & Other Fossil: 2.7% (0.44 TWh)
GRID TELEMETRY · 2025 GENERATION MIX & 2000-2025 SERIES
62.7% Low-Carbon
Maine (ME) Electricity Generation by Source (2025)
2025 Total Output: 16.19 TWh · Carbon Intensity: 228 gCO2/kWh
Natural Gas
5.56 TWh 34.4% +192%
Solar
2.89 TWh 17.9% +2377%
Wind
2.87 TWh 17.8% +20%
Hydroelectric
2.64 TWh 16.3% -16%
Bioenergy
1.74 TWh 10.8% -17%
Oil & Other Fossil
0.44 TWh 2.7% +19%
Coal
0.03 TWh 0.2% -43%
Geothermal & Other
0.01 TWh 0.1% -35%
Loading grid telemetry series...
Maine Historical Electricity Generation by Fuel (2001-2025)
| Year | Total (TWh) | Coal | Gas | Nuclear | Hydro | Wind | Solar | Clean % | gCO2/kWh |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 16.19 | 0.03 | 5.56 | 0.00 | 2.64 | 2.87 | 2.89 | 62.7% | 228 |
| 2024 | 15.68 | 0.03 | 6.40 | 0.00 | 2.85 | 2.45 | 1.96 | 56.8% | 253 |
| 2023 | 13.15 | 0.04 | 3.98 | 0.00 | 3.83 | 2.34 | 1.15 | 66.8% | 208 |
| 2022 | 13.11 | 0.04 | 4.14 | 0.00 | 3.06 | 2.72 | 0.77 | 63.9% | 230 |
| 2021 | 11.06 | 0.05 | 3.35 | 0.00 | 2.54 | 2.54 | 0.29 | 66.6% | 221 |
| 2020 | 10.10 | 0.06 | 1.90 | 0.00 | 3.16 | 2.40 | 0.12 | 77.0% | 181 |
| 2019 | 10.58 | 0.07 | 1.80 | 0.00 | 3.50 | 2.49 | 0.08 | 78.8% | 173 |
| 2018 | 11.35 | 0.07 | 2.33 | 0.00 | 3.26 | 2.38 | 0.07 | 73.9% | 204 |
| 2017 | 11.32 | 0.07 | 2.24 | 0.00 | 3.39 | 2.33 | 0.05 | 75.0% | 199 |
| 2016 | 11.56 | 0.07 | 3.50 | 0.00 | 3.00 | 1.67 | 0.03 | 64.9% | 246 |
| 2015 | 11.78 | 0.09 | 2.95 | 0.00 | 3.36 | 1.30 | 0.02 | 66.6% | 252 |
| 2014 | 13.30 | 0.08 | 4.34 | 0.00 | 3.62 | 1.10 | 0.01 | 61.4% | 269 |
| 2013 | 14.08 | 0.06 | 4.87 | 0.00 | 3.56 | 1.05 | 0.00 | 60.4% | 275 |
| 2012 | 15.11 | 0.05 | 6.04 | 0.00 | 3.73 | 0.89 | 0.00 | 56.0% | 289 |
| 2011 | 16.03 | 0.06 | 6.88 | 0.00 | 3.98 | 0.71 | 0.00 | 53.2% | 299 |
| 2010 | 17.05 | 0.09 | 8.37 | 0.00 | 3.81 | 0.50 | 0.00 | 46.9% | 324 |
| 2009 | 16.39 | 0.07 | 7.36 | 0.00 | 4.21 | 0.30 | 0.00 | 50.0% | 314 |
| 2008 | 17.15 | 0.35 | 7.38 | 0.00 | 4.46 | 0.13 | 0.00 | 50.0% | 321 |
| 2007 | 16.18 | 0.38 | 6.67 | 0.00 | 3.74 | 0.10 | 0.00 | 49.4% | 334 |
| 2006 | 16.86 | 0.32 | 7.30 | 0.00 | 4.28 | 0.00 | 0.00 | 49.2% | 328 |
| 2005 | 18.90 | 0.32 | 8.40 | 0.00 | 4.09 | 0.00 | 0.00 | 43.5% | 359 |
| 2004 | 19.29 | 0.36 | 9.83 | 0.00 | 3.43 | 0.00 | 0.00 | 37.4% | 381 |
| 2003 | 19.05 | 0.38 | 9.44 | 0.00 | 3.17 | 0.00 | 0.00 | 35.9% | 395 |
| 2002 | 22.63 | 0.60 | 13.50 | 0.00 | 2.77 | 0.00 | 0.00 | 30.5% | 409 |
| 2001 | 19.63 | 0.53 | 10.05 | 0.00 | 2.65 | 0.00 | 0.00 | 33.3% | 411 |