Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Iowa Lakes Community College Wind Farm | Iowa Lakes Community College | Estherville, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Jan 2005 | Oct 2025 | Wind |
| Iowa Lakes Superior Wind Farm | Iowa Lakes Electric Coop | Superior, IA | Southwest Power Pool (SWPP) | 36.0 GWh | Mar 2009 | Dec 2024 | Wind |
| Iowa State University | Iowa State University | Ames, IA | Midcontinent Independent System Operator, Inc. (MISO) | 80.9 GWh | Sep 1960 | Dec 2025 | Natural Gas |
| IP Radian, LLC | IP Radian, LLC | Brookesmith, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 657.7 GWh | Apr 2023 | Dec 2025 | Solar |
| IP Springfield Oregon | International Paper Corporation - Springfield | Springfield, OR | Bonneville Power Administration (BPAT) | 168.9 GWh | Dec 1948 | Dec 2024 | Black Liquor : 78.2% Natural Gas : 21.8% |
| IPC 25 Solar | Prologis Logistics Services Incorporated | Tracy, CA | California Independent System Operator (CISO) | 2.8 GWh | Jun 2024 | Dec 2024 | Solar |
| Ipswich Wind Turbine | Town of Ipswich - (MA) | Ipswich, MA | ISO New England (ISNE) | 1.5 GWh | Apr 2011 | Dec 2024 | Wind |
| IRE Solar I, LLC | Scotch Settlement | Gouverneur, NY | New York Independent System Operator (NYIS) | 1.6 GWh | Nov 2017 | Dec 2024 | Solar |
| Iredell County LFG Facility | Iredell Transmission LLC | Statesville, NC | Duke Energy Carolinas (DUK) | 25.7 GWh | Jul 2008 | Dec 2024 | Landfill Gas |
| Iris Solar LLC | Iris Solar LLC | Franklinton, LA | Midcontinent Independent System Operator, Inc. (MISO) | 116.0 GWh | Sep 2022 | Dec 2025 | Solar |
| Iris Solar, LLC (MN) | National Grid Renewables | Nicollet, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Sep 2020 | Dec 2024 | Solar |
| Irish Creek Wind | Irish Creek Wind, LLC | Frankfort, KS | Southwest Power Pool (SWPP) | 938.7 GWh | Nov 2021 | Dec 2025 | Wind |
| Iron Gate | PacifiCorp | Hornbrook, CA | PacifiCorp West (PACW) | 76.4 GWh | Jan 1962 | Jan 2024 | Water |
| Iron Horse Battery Storage Hybrid | Big Sky Wind, LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 4.7 GWh | Mar 2017 | Dec 2024 | Solar |
| Iron Horse Solar 4, LLC | Iron Horse Solar 4, LLC | North Billerica, MA | ISO New England (ISNE) | 6.9 GWh | May 2017 | Dec 2024 | Solar |
| Iron Horse Solar I CSG | Iron Horse Solar 1, LLC | North Billerica, MA | ISO New England (ISNE) | 4.3 GWh | Nov 2016 | Dec 2024 | Solar |
| Iron Springs Solar, LLC | Clearway Renewable Operation & Maintenance LLC | Cedar City, UT | PacifiCorp East (PACE) | 213.6 GWh | Jul 2016 | Dec 2025 | Solar |
| Iron Star Wind Project | Engie North America | Dodge City, KS | Southwest Power Pool (SWPP) | 1.2 TWh | Nov 2021 | Dec 2025 | Wind |
| Ironwood LLC | Helix Ironwood LLC | Lebanon, PA | PJM Interconnection, LLC (PJM) | 4.9 TWh | Nov 2001 | Dec 2025 | Natural Gas |
| Ironwood Solar LLC | Altus Power America Management, LLC | Blythe, CA | California Independent System Operator (CISO) | 7.5 GWh | Mar 2012 | Dec 2024 | Solar |
| Ironwood Wind | Duke Energy Renewables Services | Spearville, KS | Southwest Power Pool (SWPP) | 251.7 GWh | Jul 2012 | Dec 2024 | Wind |
| Iroquois Solar 1B LLC CSG | Iroquois Solar 1B LLC | Watseka, IL | Midcontinent Independent System Operator, Inc. (MISO) | 3.5 GWh | Nov 2020 | Dec 2024 | Solar |
| Irwindale Brew Yard, LLC | Irwindale Brew Yard, LLC | Irwindale, CA | California Independent System Operator (CISO) | 517.0 MWh | Jan 2002 | Apr 2025 | Solar : 99.8% |
| Isabella Hydro Project | Isabella Partners | Lake Isabella, CA | California Independent System Operator (CISO) | 43.0 GWh | Nov 1990 | Dec 2024 | Water |
| Isabella Wind Park | DTE Electric Company | Rosebush, MI | Midcontinent Independent System Operator, Inc. (MISO) | 854.3 GWh | May 2021 | Dec 2025 | Wind |
| ISH Solar Central, LLC | SunEdison LLC | Bayville, NJ | PJM Interconnection, LLC (PJM) | 1.6 GWh | Sep 2011 | Dec 2024 | Solar |
| ISH Solar Hospital Downey | SunEdison LLC | Downey, CA | California Independent System Operator (CISO) | 1.4 GWh | Aug 2011 | Dec 2024 | Solar |
| ISH Solar Hospital SDMC | SunEdison LLC | San Diego, CA | California Independent System Operator (CISO) | 1.2 GWh | Nov 2011 | Dec 2024 | Solar |
| Island Park | Fall River Rural Elec Coop Inc | Island Park, ID | Bonneville Power Administration (BPAT) | 17.9 GWh | Mar 1994 | Dec 2024 | Water |
| Island Street Peaking Plant | WPPI Energy | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 11.0 GWh | May 2004 | Dec 2024 | Natural Gas |
| ISM Solar Cranston CSG | Nautilus Solar Solutions | Cranston, RI | ISO New England (ISNE) | 4.1 GWh | Nov 2020 | Dec 2024 | Solar |
| ISM Solar Dighton 2, LLC CSG | 38 Degrees North, LLC | Dighton, MA | ISO New England (ISNE) | 3.7 GWh | Nov 2017 | Dec 2024 | Solar |
| ISM Solar Shepherd Acres | Navisun LLC | South Paris, ME | ISO New England (ISNE) | 65.0 MWh | Nov 2024 | Dec 2024 | Solar |
| ISU Customer Hosted 1MW Solar Project | Interstate Power and Light Co | Ames, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.6 GWh | Apr 2024 | Dec 2024 | Solar |
| Ivanhoe Generation Facility | Orion Engineered Carbons | Franklin, LA | Midcontinent Independent System Operator, Inc. (MISO) | 53.2 GWh | Mar 2023 | Dec 2024 | Waste Heat |
| Ivanhoe Solar | Altus Power America Management, LLC | Visalia, CA | California Independent System Operator (CISO) | 5.6 GWh | Dec 2013 | Dec 2024 | Solar |
| Ivanpah 1 | NRG Energy Services | Nipton, CA | California Independent System Operator (CISO) | 208.0 GWh | Nov 2013 | Dec 2025 | Solar : 96.3% Natural Gas : 3.7% |
| Ivanpah 2 | NRG Energy Services | Nipton, CA | California Independent System Operator (CISO) | 244.3 GWh | Nov 2013 | Dec 2025 | Solar : 95.6% Natural Gas : 4.4% |
| Ivanpah 3 | NRG Energy Services | Nipton, CA | California Independent System Operator (CISO) | 237.4 GWh | Nov 2013 | Dec 2025 | Solar : 96.4% Natural Gas : 3.6% |
| IVC Solar | Imperial Irrigation District | Imperial, CA | Imperial Irrigation District (IID) | 4.2 GWh | Nov 2016 | Dec 2024 | Solar |
| Ivester Wind Farm | MidAmerican Energy Co | Wellsburg, IA | Midcontinent Independent System Operator, Inc. (MISO) | 328.1 GWh | Nov 2018 | Dec 2025 | Wind |
Summary of Power Plants By State
Figures are based on December 2025 generation numbers.| State | Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Alabama | # 7 | 76 | 12,766.12 GWh |
| Alaska | # 48 | 139 | 625.46 GWh |
| Arizona | # 16 | 183 | 8,962.31 GWh |
| Arkansas | # 29 | 114 | 5,525.50 GWh |
| California | # 5 | 1,683 | 14,393.99 GWh |
| Colorado | # 31 | 297 | 4,649.38 GWh |
| Connecticut | # 34 | 162 | 4,087.83 GWh |
| Delaware | # 49 | 33 | 469.96 GWh |
| District of Columbia | # 51 | 16 | 14.80 GWh |
| Florida | # 3 | 333 | 19,379.32 GWh |
| Georgia | # 8 | 248 | 12,492.24 GWh |
| Hawaii | # 46 | 70 | 814.97 GWh |
| Idaho | # 41 | 146 | 2,123.12 GWh |
| Illinois | # 4 | 379 | 17,546.79 GWh |
| Indiana | # 13 | 214 | 9,789.95 GWh |
| Iowa | # 20 | 293 | 7,310.28 GWh |
| Kansas | # 28 | 183 | 5,586.75 GWh |
| Kentucky | # 22 | 60 | 6,716.43 GWh |
| Louisiana | # 17 | 84 | 8,587.03 GWh |
| Maine | # 45 | 215 | 1,484.81 GWh |
| Maryland | # 37 | 203 | 3,225.85 GWh |
| Massachusetts | # 43 | 640 | 2,073.13 GWh |
| Michigan | # 11 | 269 | 11,734.82 GWh |
| Minnesota | # 27 | 764 | 5,712.30 GWh |
| Mississippi | # 24 | 56 | 6,090.79 GWh |
| Missouri | # 23 | 125 | 6,623.76 GWh |
| State | Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Montana | # 40 | 70 | 2,639.28 GWh |
| Nebraska | # 36 | 125 | 3,667.32 GWh |
| Nevada | # 38 | 114 | 3,217.22 GWh |
| New Hampshire | # 44 | 56 | 1,878.83 GWh |
| New Jersey | # 30 | 387 | 5,182.27 GWh |
| New Mexico | # 35 | 142 | 3,818.41 GWh |
| New York | # 10 | 950 | 11,800.05 GWh |
| North Carolina | # 9 | 904 | 12,153.04 GWh |
| North Dakota | # 33 | 58 | 4,218.72 GWh |
| Ohio | # 6 | 198 | 13,425.53 GWh |
| Oklahoma | # 18 | 141 | 7,637.23 GWh |
| Oregon | # 21 | 272 | 6,788.64 GWh |
| Pennsylvania | # 2 | 252 | 22,539.49 GWh |
| Rhode Island | # 47 | 100 | 775.70 GWh |
| South Carolina | # 15 | 207 | 8,967.44 GWh |
| South Dakota | # 42 | 52 | 2,122.20 GWh |
| Tennessee | # 19 | 88 | 7,328.17 GWh |
| Texas | # 1 | 947 | 46,150.81 GWh |
| Utah | # 39 | 125 | 2,845.12 GWh |
| Vermont | # 50 | 116 | 189.85 GWh |
| Virginia | # 14 | 237 | 9,421.16 GWh |
| Washington | # 12 | 135 | 10,635.09 GWh |
| West Virginia | # 26 | 39 | 5,763.55 GWh |
| Wisconsin | # 25 | 243 | 5,804.32 GWh |
| Wyoming | # 32 | 70 | 4,436.68 GWh |