U.S. RANK #24 · WI 0.21% OF U.S. GENERATION

Wisconsin Electricity Generation & Grid Mix

In 2025, Wisconsin (WI) generated 67.16 TWh of electricity (0.21% of U.S. generation, ranked #24 among U.S. states). Its #1 electricity source was Natural Gas at 23.72 TWh (35.3% of state output), while low-carbon sources supplied 29.8%.

2025 Generation 67.16 TWh U.S. Rank #24

#1 Power Source Natural Gas 35.3% (23.7 TWh)

Low-Carbon Share 29.8% Wind + Solar: 9.5%

Fossil Share 70.2% 5Y Gen Change: +9.1%

CO2 Intensity 469 gCO2/kWh 31.5 Mt CO2 total

2025 Wisconsin Grid Fuel Mix Breakdown (100% = 67.16 TWh)

Natural Gas: 35.3% (23.72 TWh) Coal: 34.8% (23.35 TWh) Nuclear: 15.2% (10.18 TWh) Solar: 6.6% (4.44 TWh) Hydroelectric: 3.3% (2.19 TWh) Wind: 2.9% (1.96 TWh)

GRID TELEMETRY · 2025 GENERATION MIX & 2000-2025 SERIES

Wisconsin (WI) Electricity Generation by Source (2025)

29.8% Low-Carbon

2025 Total Output: 67.16 TWh · Carbon Intensity: 469 gCO2/kWh

Natural Gas

23.72 TWh 35.3% +8%

Coal

23.35 TWh 34.8% -2%

Nuclear

10.18 TWh 15.2% +4%

Solar

4.44 TWh 6.6% +1896%

Hydroelectric

2.19 TWh 3.3% -22%

Wind

1.96 TWh 2.9% +11%

Bioenergy

1.20 TWh 1.8% +6%

Oil & Other Fossil

0.08 TWh 0.1% +70%

Geothermal & Other

0.04 TWh 0.1% -42%

Source: Ember Yearly Electricity Data & U.S. EIA · Unit: Terawatt-hours (TWh) #1 Power Source: Natural Gas (35.3% of grid)

Wisconsin Historical Electricity Generation by Fuel (2001-2025)

Year	Total (TWh)	Coal	Gas	Nuclear	Hydro	Wind	Solar	Clean %	gCO2/kWh
2025	67.16	23.35	23.72	10.18	2.19	1.96	4.44	29.8%	469
2024	65.68	20.76	26.25	10.15	2.07	1.99	3.25	28.3%	465
2023	62.83	21.09	25.62	9.68	1.93	1.74	1.56	25.4%	485
2022	61.37	21.92	23.28	10.08	1.99	1.82	1.03	26.3%	488
2021	64.37	27.44	21.34	9.97	2.14	1.59	0.55	23.9%	521
2020	61.56	23.76	22.00	9.77	2.79	1.76	0.22	25.6%	500
2019	62.87	26.34	20.33	10.03	2.64	1.88	0.14	25.6%	511
2018	66.00	33.32	16.80	10.13	2.39	1.64	0.11	23.9%	548
2017	65.15	35.85	13.66	9.65	2.66	1.64	0.08	23.9%	563
2016	64.99	33.36	15.47	10.15	2.80	1.52	0.04	24.7%	547
2015	66.30	37.18	13.40	10.01	2.34	1.59	0.03	23.6%	568
2014	60.88	37.45	8.05	9.45	2.47	1.62	0.02	25.1%	580
2013	65.71	40.65	8.10	11.68	1.98	1.56	0.00	25.7%	578
2012	63.49	32.76	11.54	14.30	1.53	1.56	0.00	30.0%	523
2011	62.78	39.94	6.24	11.56	2.15	1.19	0.00	26.3%	581
2010	63.67	40.17	5.50	13.28	2.11	1.09	0.00	28.1%	569
2009	59.32	37.28	5.48	12.68	1.39	1.05	0.00	27.7%	570
2008	62.66	41.71	5.24	12.15	1.62	0.49	0.00	24.8%	596
2007	62.56	40.03	6.49	12.91	1.52	0.11	0.00	25.2%	586
2006	60.91	40.12	5.36	12.23	1.68	0.10	0.00	24.9%	594
2005	61.27	41.73	6.39	9.92	1.74	0.09	0.00	21.0%	620
2004	59.86	42.15	2.41	11.89	1.98	0.10	0.00	25.1%	607
2003	59.83	41.72	2.48	12.22	1.84	0.10	0.00	25.6%	603
2002	58.13	39.81	2.08	12.45	2.52	0.05	0.00	27.5%	590
2001	58.48	41.25	2.23	11.51	2.06	0.07	0.00	25.1%	608