Illinois operates 566 power plants totaling 53,815 MW of nameplate capacity. Natural Gas dominates the mix at 40%, followed by Nuclear (23%) and Wind (15%). The largest plant is Braidwood Generation Station at 2,449 MW.
Showing the 120 largest plants by capacity. Illinois operates another 446 plants below this size — browse the lists below to reach them.
| Plant | City | Fuel | Capacity |
|---|---|---|---|
| Braidwood Generation Station | Braceville | Nuclear | 2,450 MW |
| Byron Generating Station | Byron | Nuclear | 2,450 MW |
| Lasalle Generating Station | Marseilles | Nuclear | 2,340 MW |
| Dresden Generating Station | Morris | Nuclear | 2,019 MW |
| Quad Cities Generating Station | Cordova | Nuclear | 2,019 MW |
| Powerton | Pekin | Coal | 1,786 MW |
| Prairie State Generating Station | Marissa | Coal | 1,766 MW |
| Elwood Energy Llc | Elwood | Natural Gas | 1,728 MW |
| Joliet 29 | Joliet | Natural Gas | 1,320 MW |
| Kincaid Generation Llc | Kincaid | Coal | 1,319 MW |
| Cpv Three Rivers Energy Center | Morris | Natural Gas | 1,300 MW |
| Jackson Generation, Llc | Elwood | Natural Gas | 1,289 MW |
| Baldwin Energy Complex | Baldwin | Coal | 1,260 MW |
| Kendall County Generation Facility | Minooka | Natural Gas | 1,256 MW |
| Clinton Power Station | Clinton | Nuclear | 1,138 MW |
| Aurora | Aurora | Natural Gas | 1,086 MW |
| University Park North | University Park | Natural Gas | 726 MW |
| Holland Energy Facility | Beecher City | Natural Gas | 702 MW |
| Lincoln Generating Facility | Manhattan | Natural Gas | 692 MW |
| Lee Energy Facility | Dixon | Natural Gas | 692 MW |
| Goose Creek Energy Center | Monticello | Natural Gas | 684 MW |
| Grand Tower Energy Center Llc | Grand Tower | Natural Gas | 641 MW |
| Nelson Energy Center | Rock Falls | Natural Gas | 628 MW |
| Newton | Newton | Coal | 617 MW |
| Cordova Energy | Cordova | Natural Gas | 611 MW |
| Zion Energy Center | Zion | Natural Gas | 597 MW |
| Double Back Diamond | Virden | Solar | 593 MW |
| Venice | Venice | Natural Gas | 586 MW |
| Mrp Elgin Llc | Elgin | Natural Gas | 540 MW |
| Shelby Energy County | Neoga | Natural Gas | 483 MW |
| Raccoon Creek Energy Center | Flora | Natural Gas | 456 MW |
| Dallman | Springfield | Coal | 437 MW |
| Mrp Rocky Road Llc | East Dundee | Natural Gas | 416 MW |
| Southeast Chicago Energy Project | Chicago | Natural Gas | 407 MW |
| Pinckneyville | Pinckneyville | Natural Gas | 380 MW |
| Invenergy Nelson Expansion Llc | Rock Falls | Natural Gas | 380 MW |
| Joliet 9 | Joliet | Natural Gas | 360 MW |
| Crete Energy Venture Llc | Crete | Natural Gas | 356 MW |
| University Park South | University Park | Natural Gas | 353 MW |
| Archer Daniels Midland Decatur | Decatur | Coal | 335 MW |
| Nrg Rockford I | Rockford | Natural Gas | 316 MW |
| Calumet Energy Team Llc | Chicago | Natural Gas | 313 MW |
| Lincoln Land Wind | Tbd | Wind | 302 MW |
| Streator Cayuga Ridge South | Odell | Wind | 300 MW |
| Radfords Run Wind Farm | Maroa | Wind | 278 MW |
| Gibson City Energy Center Llc | Gibson City | Natural Gas | 270 MW |
| Kinmundy | Patoka | Natural Gas | 270 MW |
| Fisk Street | Chicago | Oil | 260 MW |
| Sapphire Sky Wind Energy Llc | Farmer City | Wind | 260 MW |
| Blooming Grove Wind Energy Center | Chenoa | Wind | 250 MW |