U.S. RANK #3 · PA 0.78% OF U.S. GENERATION

Pennsylvania Electricity Generation & Grid Mix

In 2025, Pennsylvania (PA) generated 248.21 TWh of electricity (0.78% of U.S. generation, ranked #3 among U.S. states). Its #1 electricity source was Natural Gas at 143.75 TWh (57.9% of state output), while low-carbon sources supplied 34.3%.

2025 Generation 248.21 TWh U.S. Rank #3

#1 Power Source Natural Gas 57.9% (143.8 TWh)

Low-Carbon Share 34.3% Wind + Solar: 2.8%

Fossil Share 65.7% 5Y Gen Change: +7.6%

CO2 Intensity 353 gCO2/kWh 87.5 Mt CO2 total

2025 Pennsylvania Grid Fuel Mix Breakdown (100% = 248.21 TWh)

Natural Gas: 57.9% (143.75 TWh) Nuclear: 30.2% (75.05 TWh) Coal: 7.1% (17.59 TWh) Wind: 1.4% (3.58 TWh) Solar: 1.4% (3.36 TWh) Hydroelectric: 0.7% (1.71 TWh)

GRID TELEMETRY · 2025 GENERATION MIX & 2000-2025 SERIES

Pennsylvania (PA) Electricity Generation by Source (2025)

34.3% Low-Carbon

2025 Total Output: 248.21 TWh · Carbon Intensity: 353 gCO2/kWh

Natural Gas

143.75 TWh 57.9% +19%

Nuclear

75.05 TWh 30.2% -2%

Coal

17.59 TWh 7.1% -25%

Wind

3.58 TWh 1.4% -5%

Solar

3.36 TWh 1.4% +361%

Hydroelectric

1.71 TWh 0.7% -18%

Oil & Other Fossil

1.69 TWh 0.7% +11%

Bioenergy

1.45 TWh 0.6% -24%

Geothermal & Other

0.03 TWh 0.0% -1%

Source: Ember Yearly Electricity Data & U.S. EIA · Unit: Terawatt-hours (TWh) #1 Power Source: Natural Gas (57.9% of grid)

Pennsylvania Historical Electricity Generation by Fuel (2001-2025)

Year	Total (TWh)	Coal	Gas	Nuclear	Hydro	Wind	Solar	Clean %	gCO2/kWh
2025	248.21	17.59	143.75	75.05	1.71	3.58	3.36	34.3%	353
2024	242.5	13.04	143.91	75.40	1.81	3.26	2.07	34.6%	345
2023	236.98	12.83	139.26	75.30	1.88	3.26	1.39	35.2%	343
2022	240.09	23.93	130.16	76.17	1.91	3.57	1.05	35.1%	358
2021	242.02	29.30	126.66	75.90	2.44	3.46	0.88	34.9%	366
2020	230.76	23.46	120.77	76.52	2.08	3.75	0.73	36.8%	351
2019	229.49	37.93	98.04	83.23	2.94	3.25	0.58	40.1%	356
2018	215.77	44.09	76.39	83.48	3.60	3.57	0.48	43.3%	355
2017	213.88	47.63	72.50	83.20	2.52	3.59	0.43	43.1%	362
2016	215.27	54.67	68.05	82.92	1.81	3.48	0.36	42.3%	376
2015	214.68	64.64	59.45	80.52	2.09	3.35	0.33	41.3%	396
2014	221.17	78.99	53.02	78.71	2.06	3.56	0.31	39.4%	424
2013	226.63	88.44	49.94	78.71	1.99	3.35	0.06	38.1%	440
2012	223.39	87.15	53.06	75.17	1.80	2.13	0.03	36.5%	449
2011	227.29	100.6	41.79	76.15	2.72	1.79	0.02	36.5%	466
2010	229.75	110.37	33.72	77.83	1.62	1.85	0.01	36.4%	479
2009	219.32	105.47	29.21	77.33	1.95	1.07	0.00	37.7%	473
2008	222.15	117.58	18.73	78.66	2.20	0.73	0.00	37.7%	489
2007	225.93	122.69	19.20	77.38	1.51	0.47	0.00	36.1%	501
2006	218.56	122.56	13.54	75.30	2.15	0.36	0.00	36.6%	505
2005	217.69	120.93	10.81	76.29	1.52	0.28	0.00	36.8%	505
2004	214.07	117.18	9.81	77.46	2.47	0.31	0.00	38.4%	494
2003	205.79	116.01	5.52	74.36	2.61	0.11	0.00	38.4%	500
2002	203.86	113.91	6.72	76.09	1.55	0.06	0.00	39.1%	493
2001	196.39	111.9	3.04	73.73	1.03	0.01	0.00	39.0%	499