McHenry County, Illinois
McHenry County, Illinois has 41 power projects in the FieldProspects database: 29 operating plants totaling 88.6 MW and 12 planned projects totaling 2 GW. No data center record lists the county. Battery Storage leads with 1.4 GW across 6 projects.
McHenry County and its neighbors
Counties shaded by data center MW on record, planned to operating. 5 of its 5 neighboring counties have pages of their own. The rest are in the member database.
Data center records planned, under construction and operating, data as of October 8, 2026.Hover a county for its numbers
more planned than operating generation in McHenry County. 12 projects in the queue would add 2 GW to the 88.6 MW operating today, and 2 of them are past their listed in-service date.
Technology mix
41 projects, 2.1 GW planned and operating
Power generation in the county
29 plants operate inside McHenry County, 88.6 MW. The queue adds 2 GW across 12 projects, and 2 of them are past their listed in-service date.
Operating and planned generation by technology
MW in McHenry County
View as table
| Technology | Status | Projects | MW |
|---|---|---|---|
| Battery Storage | Operating | 2 | 40 |
| Battery Storage | Planned | 4 | 1,400 |
| Solar | Operating | 21 | 42.6 |
| Solar | Planned | 8 | 617.4 |
| Natural Gas | Operating | 6 | 6 |
Planned generation by listed in-service year
MW. Years before 2026 are past due. 3 planned projects list no date and are left out.
View as table
| Year | Planned projects | MW |
|---|---|---|
| 2024 | 2 | 800 |
| 2025 | 0 | 0 |
| 2026 | 6 | 167.4 |
| 2027 | 0 | 0 |
| 2028 | 0 | 0 |
| 2029 | 1 | 300 |
McHenry County against its neighbors
Cook County has the most data center MW among the neighbors, 2.2 GW. 4 of the 5 have more generation operating than data center MW on record.
| County | Data center records | Data center MW | Operating generation MW | Planned generation MW | Data center MW per MW operating |
|---|---|---|---|---|---|
| Cook County | 48 | 510 | 1.6x | ||
| DeKalb County | 7 | 966 | 0.8x | ||
| Lake County | 1 | 640 | 0.04x | ||
| Kane County | 0 | 17 | 0x | ||
| McHenry County this page | 0 | 2,017 | 0x | ||
| Boone County | 0 | 76 | 0x |
Data center MW counts records planned, under construction and operating. Generation is inside the county only. Neighbors without a page have fewer than three projects on record.
6 counties shownWhat changed since June 4, 2026
13 projects in McHenry County moved between the two snapshots. Counts and MW are below; the projects themselves are for members.
Every change in McHenry County
Project, what changed, technology, MW and the dates that moved, for all 13 changes.
| Project | Change | Technology | MW | Previous date | New date |
|---|---|---|---|---|---|
Rows are hidden on public pages. Members see the project behind each change, its developer and the dates that moved.
Every record in McHenry County
Project name, developer, status, MW, in-service year and the developer’s contacts, for all 41 records. Filter, sort and export to Excel.
| Project or campus | Developer | Status | MW | Year | Contacts |
|---|---|---|---|---|---|
Rows are hidden on public pages. Members see every field and can export up to 1,000 rows a month on Solo, unlimited on Unlimited.
Get alerts for McHenry County
We email you when a data center or power project in McHenry County is added, changes status, signs an interconnection agreement or slips its date. One email per snapshot, only when something changed.
Open every campus, project and contact in McHenry County.
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