U.S. RANK #16 · WA 0.33% OF U.S. GENERATION

Washington Electricity Generation & Grid Mix

In 2025, Washington (WA) generated 103.81 TWh of electricity (0.33% of U.S. generation, ranked #16 among U.S. states). Its #1 electricity source was Hydroelectric at 65.17 TWh (62.8% of state output), while low-carbon sources supplied 80.9%.

2025 Generation 103.81 TWh U.S. Rank #16

#1 Power Source Hydroelectric 62.8% (65.2 TWh)

Low-Carbon Share 80.9% Wind + Solar: 9.6%

Fossil Share 19.1% 5Y Gen Change: -10.8%

CO2 Intensity 124 gCO2/kWh 12.9 Mt CO2 total

2025 Washington Grid Fuel Mix Breakdown (100% = 103.81 TWh)

Hydroelectric: 62.8% (65.17 TWh) Natural Gas: 15.7% (16.29 TWh) Wind: 8.3% (8.57 TWh) Nuclear: 7.5% (7.75 TWh) Coal: 3.0% (3.16 TWh) Solar: 1.3% (1.35 TWh)

GRID TELEMETRY · 2025 GENERATION MIX & 2000-2025 SERIES

Washington (WA) Electricity Generation by Source (2025)

80.9% Low-Carbon

2025 Total Output: 103.81 TWh · Carbon Intensity: 124 gCO2/kWh

Hydroelectric

65.17 TWh 62.8% -15%

Natural Gas

16.29 TWh 15.7% +16%

Wind

8.57 TWh 8.3% -8%

Nuclear

7.75 TWh 7.5% -18%

Coal

3.16 TWh 3.0% -39%

Solar

1.35 TWh 1.3% +357%

Bioenergy

1.13 TWh 1.1% -18%

Oil & Other Fossil

0.37 TWh 0.3% -3%

Geothermal & Other

0.02 TWh 0.0% -23%

Source: Ember Yearly Electricity Data & U.S. EIA · Unit: Terawatt-hours (TWh) #1 Power Source: Hydroelectric (62.8% of grid)

Washington Historical Electricity Generation by Fuel (2001-2025)

Year	Total (TWh)	Coal	Gas	Nuclear	Hydro	Wind	Solar	Clean %	gCO2/kWh
2025	103.81	3.16	16.29	7.75	65.17	8.57	1.35	80.9%	124
2024	103.05	2.85	18.10	9.97	60.74	8.86	1.07	79.3%	130
2023	103.49	4.16	19.41	8.44	61.44	7.55	0.88	76.9%	146
2022	117.1	3.57	14.53	9.85	78.93	8.06	0.48	84.2%	109
2021	111.14	3.13	16.59	8.51	71.38	9.30	0.36	82.0%	119
2020	116.39	5.17	14.01	9.43	76.42	9.27	0.30	83.2%	118
2019	106.69	7.17	15.73	8.87	66.03	6.68	0.25	78.2%	150
2018	116.93	5.38	10.54	9.71	80.91	7.90	0.15	86.0%	107
2017	116.05	5.49	10.85	8.13	82.19	6.93	0.12	85.5%	110
2016	114.21	4.60	10.98	9.63	78.34	8.04	0.09	85.9%	106
2015	109.37	5.05	13.05	8.16	73.44	7.08	0.06	83.0%	122
2014	116.4	6.72	11.06	9.50	79.46	7.27	0.04	84.3%	119
2013	114.19	6.74	11.42	8.46	78.16	7.00	0.00	83.6%	123
2012	116.85	3.76	5.44	9.33	89.51	6.60	0.00	91.6%	76
2011	115.27	5.23	4.85	4.81	91.87	6.26	0.00	90.8%	85
2010	103.48	8.53	10.36	9.24	68.34	4.74	0.00	81.4%	141
2009	104.48	7.48	11.97	6.63	72.99	3.57	0.00	81.0%	138
2008	110.84	8.76	9.81	9.27	77.69	3.66	0.00	82.9%	131
2007	107	8.56	7.29	8.11	78.87	2.44	0.00	84.8%	123
2006	108.22	6.37	7.50	9.33	82.05	1.04	0.00	86.8%	108
2005	101.99	10.49	8.58	8.24	72.08	0.50	0.00	80.8%	150
2004	102.19	10.41	8.47	8.98	71.57	0.74	0.00	81.1%	149
2003	100.12	11.09	7.08	7.61	71.75	0.60	0.00	81.4%	150
2002	102.79	8.66	4.72	9.05	78.16	0.42	0.00	86.5%	117
2001	83.10	9.08	9.37	8.25	54.73	0.00	0.00	77.3%	169