Mercer County, Illinois
Mercer County, Illinois has 6 power projects in the FieldProspects database: 2 operating plants totaling 10 MW and 4 planned projects totaling 487.6 MW. No data center record lists the county. Wind leads with 250 MW across 1 project. No planned project is past its listed in-service date.
Mercer County and its neighbors
Counties shaded by data center MW on record, planned to operating. 3 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 Mercer County. 4 projects in the queue would add 487.6 MW to the 10 MW operating today.
Technology mix
6 projects, 497.6 MW planned and operating
Power generation in the county
2 plants operate inside Mercer County, 10 MW of solar. The queue adds 487.6 MW across 4 projects.
Operating and planned generation by technology
MW in Mercer County
View as table
| Technology | Status | Projects | MW |
|---|---|---|---|
| Wind | Planned | 1 | 250 |
| Solar | Operating | 2 | 10 |
| Solar | Planned | 3 | 237.6 |
Planned generation by listed in-service year
MW. Years before 2026 are past due.
View as table
| Year | Planned projects | MW |
|---|---|---|
| 2026 | 1 | 2 |
| 2027 | 1 | 40 |
| 2028 | 2 | 445.6 |
Mercer County against its neighbors
None of the 3 neighboring counties with a page lists a data center record. Rock Island County has the most operating generation among them, 2.7 GW.
| County | Data center records | Data center MW | Operating generation MW | Planned generation MW | Data center MW per MW operating |
|---|---|---|---|---|---|
| Rock Island County | 0 | 1,383 | 0x | ||
| Henry County | 0 | 508 | 0x | ||
| Knox County | 0 | 855 | 0x | ||
| Mercer County this page | 0 | 488 | 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.
4 counties shownWhat changed since June 4, 2026
1 project in Mercer County moved between the two snapshots. Counts and MW are below; the projects themselves are for members.
Every change in Mercer County
Project, what changed, technology, MW and the dates that moved, for all 1 change.
| 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 Mercer County
Project name, developer, status, MW, in-service year and the developer’s contacts, for all 6 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 Mercer County
We email you when a data center or power project in Mercer 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 Mercer County.
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