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U.S. RANK #20 · IA 0.24% OF U.S. GENERATION

Iowa Electricity Generation & Grid Mix

In 2025, Iowa (IA) generated 74.87 TWh of electricity (0.24% of U.S. generation, ranked #20 among U.S. states). Its #1 electricity source was Wind at 43.74 TWh (58.4% of state output), while low-carbon sources supplied 62.8%.

2025 Generation 74.87 TWh U.S. Rank #20
#1 Power Source Wind 58.4% (43.7 TWh)
Low-Carbon Share 62.8% Wind + Solar: 60.9%
Fossil Share 37.2% 5Y Gen Change: +25.1%
CO2 Intensity 275 gCO2/kWh 20.6 Mt CO2 total
2025 Iowa Grid Fuel Mix Breakdown (100% = 74.87 TWh)
Wind: 58.4% (43.74 TWh) Coal: 25.5% (19.11 TWh) Natural Gas: 11.6% (8.69 TWh) Solar: 2.5% (1.85 TWh) Hydroelectric: 1.5% (1.14 TWh) Bioenergy: 0.3% (0.20 TWh)
GRID TELEMETRY · 2025 GENERATION MIX & 2000-2025 SERIES

Iowa (IA) Electricity Generation by Source (2025)

2025 Total Output: 74.87 TWh · Carbon Intensity: 275 gCO2/kWh

Wind
43.74 TWh 58.4%
Coal
19.11 TWh 25.5%
Natural Gas
8.69 TWh 11.6%
Solar
1.85 TWh 2.5%
Hydroelectric
1.14 TWh 1.5%
Bioenergy
0.20 TWh 0.3%
Geothermal & Other
0.09 TWh 0.1%
Oil & Other Fossil
0.06 TWh 0.1%
Source: Ember Yearly Electricity Data & U.S. EIA · Unit: Terawatt-hours (TWh) #1 Power Source: Wind (58.4% of grid)

Iowa Historical Electricity Generation by Fuel (2001-2025)

Year Total (TWh) Coal Gas Nuclear Hydro Wind Solar Clean % gCO2/kWh
2025 74.87 19.11 8.69 0.00 1.14 43.74 1.85 62.8% 275
2024 71.05 14.46 9.76 0.00 1.03 44.28 1.14 65.8% 243
2023 70.33 16.41 10.24 0.00 0.95 41.44 0.91 62.0% 272
2022 73.39 18.17 7.34 0.00 1.01 45.76 0.69 65.1% 261
2021 67.52 22.11 6.46 0.00 0.98 37.10 0.47 57.5% 324
2020 59.87 14.15 7.04 2.90 1.03 34.18 0.23 64.6% 260
2019 62.83 22.16 7.78 5.24 0.80 26.30 0.18 52.3% 358
2018 63.56 28.55 7.34 4.90 0.92 21.33 0.14 43.4% 432
2017 58.05 25.36 4.57 5.21 1.03 21.37 0.09 48.3% 405
2016 54.54 25.20 2.96 4.70 0.92 20.07 0.06 47.9% 415
2015 56.79 29.81 2.40 5.24 0.96 17.87 0.04 43.1% 458
2014 56.94 33.73 1.37 4.15 0.88 16.31 0.02 38.2% 504
2013 56.67 33.30 1.43 5.32 0.75 15.57 0.00 38.6% 500
2012 56.72 35.33 1.94 4.35 0.77 14.03 0.00 34.1% 533
2011 56.37 38.23 0.99 5.22 0.93 10.71 0.00 30.3% 570
2010 57.53 41.28 1.31 4.45 0.95 9.17 0.00 25.8% 604
2009 51.90 37.35 1.18 4.68 0.97 7.42 0.00 25.6% 606
2008 53.08 40.41 2.16 5.28 0.82 4.08 0.00 19.6% 649
2007 49.68 37.99 3.09 4.52 0.96 2.76 0.00 16.9% 663
2006 45.42 34.41 2.40 5.10 0.91 2.32 0.00 18.7% 652
2005 44.18 34.25 2.48 4.54 0.96 1.65 0.00 16.5% 668
2004 43.25 35.27 0.82 4.93 0.95 1.05 0.00 16.3% 682
2003 42.13 35.82 0.31 3.99 0.79 0.98 0.00 14.0% 705
2002 42.54 35.37 0.55 4.57 0.95 0.92 0.00 15.4% 692
2001 40.67 34.67 0.59 3.85 0.85 0.49 0.00 13.1% 710