Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| 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) | 118.1 GWh | Sep 2022 | Mar 2026 | 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) | 940.6 GWh | Nov 2021 | Mar 2026 | Wind |
| 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) | 214.5 GWh | Jul 2016 | Mar 2026 | Solar |
| Iron Star Wind Project | Engie North America | Dodge City, KS | Southwest Power Pool (SWPP) | 1.2 TWh | Nov 2021 | Mar 2026 | Wind |
| Ironwood LLC | Helix Ironwood LLC | Lebanon, PA | PJM Interconnection, LLC (PJM) | 4.3 TWh | Nov 2001 | Mar 2026 | 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) | 805.7 GWh | May 2021 | Mar 2026 | 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) | 193.7 GWh | Nov 2013 | Mar 2026 | Solar : 96.3% Natural Gas : 3.7% |
| Ivanpah 2 | NRG Energy Services | Nipton, CA | California Independent System Operator (CISO) | 236.4 GWh | Nov 2013 | Mar 2026 | Solar : 95.9% Natural Gas : 4.1% |
| Ivanpah 3 | NRG Energy Services | Nipton, CA | California Independent System Operator (CISO) | 230.7 GWh | Nov 2013 | Mar 2026 | Solar : 96.3% Natural Gas : 3.7% |
| 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) | 316.5 GWh | Nov 2018 | Mar 2026 | Wind |
Summary of Power Plants By State
Figures are based on March 2026 generation numbers.| State | Rank | Active Plants | Mar 2026 Generation |
|---|---|---|---|
| Alabama | # 10 | 76 | 10,194.39 GWh |
| Alaska | # 48 | 139 | 566.31 GWh |
| Arizona | # 15 | 183 | 8,256.99 GWh |
| Arkansas | # 25 | 114 | 4,973.03 GWh |
| California | # 5 | 1,656 | 15,197.83 GWh |
| Colorado | # 30 | 294 | 4,491.41 GWh |
| Connecticut | # 31 | 161 | 3,992.67 GWh |
| Delaware | # 49 | 33 | 248.78 GWh |
| District of Columbia | # 51 | 16 | 18.32 GWh |
| Florida | # 3 | 334 | 19,802.71 GWh |
| Georgia | # 8 | 247 | 10,697.11 GWh |
| Hawaii | # 46 | 69 | 784.18 GWh |
| Idaho | # 42 | 144 | 1,957.44 GWh |
| Illinois | # 4 | 379 | 15,489.73 GWh |
| Indiana | # 12 | 216 | 9,257.49 GWh |
| Iowa | # 21 | 289 | 6,478.67 GWh |
| Kansas | # 23 | 183 | 5,489.55 GWh |
| Kentucky | # 29 | 59 | 4,637.74 GWh |
| Louisiana | # 17 | 86 | 8,003.69 GWh |
| Maine | # 45 | 212 | 1,313.24 GWh |
| Maryland | # 39 | 202 | 2,834.84 GWh |
| Massachusetts | # 44 | 639 | 1,383.17 GWh |
| Michigan | # 13 | 268 | 8,564.76 GWh |
| Minnesota | # 26 | 760 | 4,875.53 GWh |
| Mississippi | # 24 | 55 | 5,467.46 GWh |
| Missouri | # 22 | 125 | 5,500.53 GWh |
| State | Rank | Active Plants | Mar 2026 Generation |
|---|---|---|---|
| Montana | # 40 | 69 | 2,464.49 GWh |
| Nebraska | # 37 | 121 | 3,330.39 GWh |
| Nevada | # 35 | 114 | 3,487.65 GWh |
| New Hampshire | # 43 | 54 | 1,520.13 GWh |
| New Jersey | # 28 | 379 | 4,705.05 GWh |
| New Mexico | # 33 | 142 | 3,587.89 GWh |
| New York | # 9 | 935 | 10,247.40 GWh |
| North Carolina | # 11 | 896 | 9,821.46 GWh |
| North Dakota | # 32 | 59 | 3,854.12 GWh |
| Ohio | # 6 | 200 | 12,175.28 GWh |
| Oklahoma | # 19 | 142 | 7,305.54 GWh |
| Oregon | # 20 | 266 | 6,583.30 GWh |
| Pennsylvania | # 2 | 249 | 20,000.86 GWh |
| Rhode Island | # 47 | 100 | 610.71 GWh |
| South Carolina | # 14 | 204 | 8,273.25 GWh |
| South Dakota | # 41 | 52 | 2,184.62 GWh |
| Tennessee | # 18 | 88 | 7,335.80 GWh |
| Texas | # 1 | 961 | 46,858.09 GWh |
| Utah | # 38 | 125 | 3,184.50 GWh |
| Vermont | # 50 | 117 | 217.82 GWh |
| Virginia | # 16 | 233 | 8,059.42 GWh |
| Washington | # 7 | 131 | 10,773.76 GWh |
| West Virginia | # 34 | 40 | 3,543.98 GWh |
| Wisconsin | # 27 | 239 | 4,794.79 GWh |
| Wyoming | # 36 | 70 | 3,358.51 GWh |