| City of St Charles - (IL) | 10% | 282 | Municipal |
| Wayne-White Counties Elec Coop | 10% | 140 | Cooperative |
| Elgin (water/sewer) | 10% | not reported | Municipal |
| Southwestern Electric Coop Inc - (IL) | 5% | not reported | Cooperative |
| Southeastern IL Elec Coop, Inc | 5% | 528 | Cooperative |
| Eastern Illinois Elec Coop | 5% | 488 | Cooperative |
| City of Batavia - (IL) | 5% | 641 | Municipal |
| Shelby Electric Coop, Inc - (IL) | 5% | 340 | Cooperative |
| Rock Energy Cooperative | 3% | 212 | Cooperative |
| Rochelle Municipal Utilities | 3% | 234 | Municipal |
| Commonwealth Edison Co | 1.5% | 95,605 | Investor Owned |
| MidAmerican Energy Co | 1.5% | 17,145 | Investor Owned |
| Ameren Illinois Company | 1.5% | 72,296 | Investor Owned |
| City of Springfield - (IL) | 1.5% | 5,594 | Municipal |
| Corn Belt Energy Corporation | 1.5% | 1,543 | Cooperative |
| Jo-Carroll Energy, Inc | 1.5% | 130 | Cooperative |
| Springfield (water/sewer) | 1.5% | not reported | Municipal |
| Peoria (water/sewer) | 1.5% | not reported | Investor Owned |
| Chicago (water/sewer) | 1.25% | not reported | Municipal |
| City of Naperville - (IL) | not published | 2,670 | Municipal |
| Norris Electric Coop | not published | 147 | Cooperative |
| Tri-County Electric Coop, Inc (IL) | not published | 267 | Cooperative |
| Egyptian Electric Coop Assn | not published | 506 | Cooperative |
| Scenic Rivers Energy Coop | not published | 61 | Cooperative |
| Menard Electric Coop | not published | 233 | Cooperative |
| City of Geneva- (IL) | not published | 248 | Municipal |
| Coles-Moultrie Electric Coop | not published | 277 | Cooperative |
| City of Peru - (IL) | not published | 185 | Municipal |
| Mt Carmel Public Utility Co | not published | 170 | Investor Owned |
| Village of Bethany | not published | 0 | Unknown |
| City of Bushnell | not published | 63 | Unknown |
| Village of Greenup | not published | 23 | Unknown |
| City of McLeansboro | not published | 156 | Unknown |
| City of Red Bud | not published | 338 | Unknown |
| Village of Riverton | not published | 170 | Unknown |
| City of Sullivan | not published | 263 | Unknown |