Solar installations in Illinois
115,165 recorded installations — prices, growth by year, county breakdown and the installers doing the work.
Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.
Most active
Top installers in Illinois
| # | Installer | Installs in IL |
|---|---|---|
| 1 | HOLMES, WELLS L | 832 |
| 2 | LARSEN, COLEMAN D | 427 |
| 3 | ESKANDANIAN, PAYMON | 386 |
| 4 | WARD, JON P | 376 |
| 5 | AL HARASH, MOHAMED T | 197 |
| 6 | BROWN, JASON R | 139 |
| 7 | ADAMS, JAMES ADRIAN | 132 |
| 8 | HAJIHASHEMI, ALI | 106 |
| 9 | ZOMORODIAN, MEHDI | 77 |
| 10 | BASSAM, ASA | 65 |
| 11 | YURIANTO, YURIANTO | 58 |
| 12 | Solarcraft Services | 49 |
| 13 | Kapital Electric | 49 |
| 14 | MYKET, ALLAN T | 40 |
| 15 | ROGER ALWORTH | 39 |
Growth
Installations by year
New installs per year and the running cumulative total, plus % of homes with solar (ACS housing units).
By county
Solar by county in Illinois
| County | Installs | % homes | Capacity | Median $/W |
|---|---|---|---|---|
| Cook County | 34,924 | 1.5% | 862.3 MW | $2.10/W |
| Will County | 8,058 | 3.2% | 265.6 MW | — |
| DuPage County | 7,202 | 2.0% | 149.6 MW | — |
| Lake County | 6,386 | 2.4% | 157.6 MW | — |
| Kane County | 4,407 | 2.3% | 121.6 MW | — |
| Winnebago County | 3,862 | 3.1% | 200.9 MW | $2.93/W |
| McHenry County | 3,484 | 2.9% | 239.8 MW | — |
| Champaign County | 3,091 | 3.3% | 160.9 MW | — |
| Tazewell County | 2,919 | 5.0% | 87.3 MW | — |
| Peoria County | 2,713 | 3.2% | 103.9 MW | — |
| Madison County | 2,405 | 2.0% | 142.8 MW | — |
| St. Clair County | 2,333 | 2.0% | 149.7 MW | — |
| Kendall County | 2,216 | 4.8% | 52.9 MW | — |
| McLean County | 1,599 | 2.1% | 51.2 MW | — |
| Sangamon County | 1,248 | 1.3% | 35.2 MW | — |
| DeKalb County | 1,184 | 2.9% | 220.0 MW | — |
| Boone County | 1,073 | 5.3% | 62.3 MW | — |
| Ogle County | 1,027 | 4.5% | 65.4 MW | — |
| Stephenson County | 1,027 | 4.8% | 199.5 MW | — |
| Kankakee County | 794 | 1.7% | 253.5 MW | — |
| Jo Daviess County | 780 | 5.8% | 40.4 MW | — |
| Woodford County | 766 | 4.9% | 51.1 MW | — |
| Williamson County | 746 | 2.3% | 70.1 MW | — |
| LaSalle County | 728 | 1.5% | 103.9 MW | — |
| Adams County | 685 | 2.3% | 20.4 MW | — |
| Whiteside County | 672 | 2.6% | 164.7 MW | — |
| Henry County | 638 | 2.9% | 33.4 MW | — |
| Macon County | 624 | 1.3% | 49.8 MW | — |
| Montgomery County | 612 | 4.9% | 78.6 MW | — |
| Clinton County | 587 | 3.7% | 48.3 MW | — |
| Knox County | 584 | 2.5% | 72.3 MW | — |
| Macoupin County | 582 | 2.8% | 45.0 MW | — |
| Fulton County | 518 | 3.3% | 32.6 MW | — |
| Livingston County | 510 | 3.2% | 153.2 MW | — |
| Vermilion County | 493 | 1.4% | 65.7 MW | — |
| Jackson County | 484 | 1.7% | 19.4 MW | — |
| Carroll County | 462 | 5.6% | 12.0 MW | — |
| Lee County | 457 | 3.0% | 47.5 MW | — |
| Hancock County | 443 | 4.9% | 35.0 MW | — |
| Christian County | 435 | 2.9% | 42.8 MW | — |
| Morgan County | 384 | 2.6% | 85.1 MW | — |
| Monroe County | 357 | 2.4% | 8.6 MW | — |
| Rock Island County | 355 | 0.53% | 16.7 MW | — |
| Logan County | 341 | 2.8% | 122.5 MW | — |
| Bureau County | 324 | 2.1% | 68.2 MW | — |
| Effingham County | 315 | 2.1% | 10.2 MW | — |
| Grundy County | 313 | 1.5% | 53.4 MW | — |
| Piatt County | 308 | 4.2% | 13.3 MW | — |
| Randolph County | 305 | 2.3% | 30.9 MW | — |
| Bond County | 294 | 4.3% | 7.2 MW | — |
| Mercer County | 282 | 3.9% | 20.6 MW | — |
| Perry County | 268 | 2.9% | 87.3 MW | — |
| Marion County | 267 | 1.5% | 29.2 MW | — |
| McDonough County | 252 | 1.9% | 38.7 MW | — |
| Jersey County | 245 | 2.5% | 11.6 MW | — |
| Saline County | 233 | 2.0% | 9.7 MW | — |
| Franklin County | 232 | 1.3% | 14.9 MW | — |
| Coles County | 231 | 1.0% | 28.5 MW | — |
| Washington County | 231 | 3.6% | 7.3 MW | — |
| Ford County | 209 | 3.3% | 12.2 MW | — |
| Fayette County | 206 | 2.3% | 33.7 MW | — |
| Douglas County | 196 | 2.3% | 35.7 MW | — |
| Iroquois County | 177 | 1.4% | 18.6 MW | — |
| Jefferson County | 177 | 1.1% | 20.6 MW | — |
| Warren County | 174 | 2.3% | 39.4 MW | — |
| Marshall County | 164 | 2.8% | 30.0 MW | — |
| Stark County | 159 | 6.2% | 4.1 MW | — |
| Menard County | 148 | 2.6% | 1.9 MW | — |
| Edgar County | 143 | 1.7% | 21.6 MW | — |
| Mason County | 142 | 2.1% | 11.5 MW | — |
| De Witt County | 133 | 1.8% | 3.9 MW | — |
| Cass County | 130 | 2.3% | 18.5 MW | — |
| Shelby County | 129 | 1.3% | 2.1 MW | — |
| Pike County | 123 | 1.7% | 7.2 MW | — |
| Union County | 121 | 1.5% | 3.5 MW | — |
| Greene County | 107 | 1.8% | 4.6 MW | — |
| Henderson County | 93 | 2.8% | 6.1 MW | — |
| Richland County | 89 | 1.2% | 9.5 MW | — |
| Crawford County | 86 | 1.0% | 15.6 MW | — |
| Lawrence County | 68 | 1.1% | 27.2 MW | — |
| Putnam County | 66 | 2.2% | 17.8 MW | — |
| Wabash County | 57 | 1.1% | 954 kW | — |
| Johnson County | 56 | 1.0% | 3.8 MW | — |
| Schuyler County | 55 | 1.7% | 9.0 MW | — |
| Cumberland County | 53 | 1.1% | 16.8 MW | — |
| White County | 53 | 0.79% | 3.8 MW | — |
| Brown County | 51 | 2.2% | 541 kW | — |
| Jasper County | 50 | 1.2% | 1.9 MW | — |
| Moultrie County | 50 | 0.81% | 1.1 MW | — |
| Scott County | 50 | 2.1% | 596 kW | — |
| Clay County | 47 | 0.77% | 18.5 MW | — |
| Gallatin County | 46 | 1.8% | 4.3 MW | — |
| Clark County | 45 | 0.61% | 1.4 MW | — |
| Pope County | 37 | 1.6% | 533 kW | — |
| Hamilton County | 35 | 0.92% | 772 kW | — |
| Wayne County | 32 | 0.42% | 796 kW | — |
| Edwards County | 23 | 0.76% | 417 kW | — |
| Calhoun County | 21 | 0.91% | 244 kW | — |
| Massac County | 20 | 0.29% | 235 kW | — |
| Alexander County | 17 | 0.57% | 5.8 MW | — |
| Hardin County | 17 | 0.74% | 321 kW | — |
| Pulaski County | 13 | 0.46% | 6.1 MW | — |
Counties derived from installation ZIP codes (Census ZCTA crosswalk) — approximate at boundaries. Counties marked limited have under 10 recorded installs, so their medians and penetration are indicative only. % homes = recorded installs ÷ housing units (U.S. Census ACS 5-Year, B25001).
Search every recorded Illinois installation — by installer, size, date, storage and equipment.
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Top solar equipment in Illinois
| # | Panel manufacturer | Systems |
|---|---|---|
| 1 | First Solar | 8 |
| 2 | SolarWorld | 6 |
| 3 | Qcells | 6 |
| 4 | Sharp | 4 |
| 5 | Canadian Solar | 4 |
| 6 | Silfab Solar | 3 |
| 7 | SunPower | 3 |
| 8 | REC | 2 |
| # | Inverter manufacturer | Systems |
|---|---|---|
| 1 | SolarEdge | 9 |
| 2 | Enphase | 2 |
| 3 | Tesla | 2 |
From recorded equipment on Illinois systems (Tracking the Sun + state/permit data); counts are systems where the manufacturer is known.
Developers
Top solar developers in Illinois
| # | Developer | Systems |
|---|---|---|
| 1 | ZACHER, PAUL K | 2,276 |
| 2 | HOLMES, WELLS L | 832 |
| 3 | LARSEN, COLEMAN D | 427 |
| 4 | ESKANDANIAN, PAYMON | 386 |
| 5 | WARD, JON P | 376 |
| 6 | AL HARASH, MOHAMED T | 197 |
| 7 | BROWN, JASON R | 139 |
| 8 | ADAMS, JAMES ADRIAN | 132 |
Developer/EPC named on the permit or program record — often the same firm as the installer.
Frequently asked questions
How many solar installations are there in Illinois?
PanelCensus records 115,165 solar installations in Illinois, totalling 7.2 GW of capacity — about 2.1% of the state's 5,443,501 housing units (U.S. Census ACS) — compiled from LBNL's Tracking the Sun, city permit records, state programs and USGS/EIA utility-scale data. (Coverage depends on what the state publishes, so actual totals are higher.)
How much does solar cost per watt in Illinois?
The median installed price across priced systems in Illinois is $2.21/W pre-incentive. Year-by-year medians are shown on this page.
Who are the biggest solar installers in Illinois?
HOLMES, WELLS L has the most recorded installations in Illinois (832), followed by LARSEN, COLEMAN D (427).