Mason County, Illinois
Mason County, Illinois has 14 power projects in the FieldProspects database: 6 operating plants totaling 412 MW and 8 planned projects totaling 1.4 GW. No data center record lists the county. Wind leads with 1.1 GW across 7 projects. 6 planned projects are past their listed in-service date.
Mason County and its neighbors
Counties shaded by data center MW on record, planned to operating. 4 of its 6 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 Mason County. 8 projects in the queue would add 1.4 GW to the 412 MW operating today, and 6 of them are past their listed in-service date.
Technology mix
14 projects, 1.8 GW planned and operating
Power generation in the county
6 plants operate inside Mason County, 412 MW of wind and solar. The queue adds 1.4 GW across 8 projects, and 6 of them are past their listed in-service date.
Operating and planned generation by technology
MW in Mason County
View as table
| Technology | Status | Projects | MW |
|---|---|---|---|
| Wind | Operating | 2 | 356 |
| Wind | Planned | 5 | 790.7 |
| Solar | Operating | 4 | 56 |
| Solar | Planned | 3 | 642 |
Planned generation by listed in-service year
MW. Years before 2026 are past due.
View as table
| Year | Planned projects | MW |
|---|---|---|
| 2020 | 1 | 144 |
| 2021 | 1 | 58.5 |
| 2022 | 1 | 188.3 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 3 | 522 |
| 2026 | 1 | 320 |
| 2027 | 0 | 0 |
| 2028 | 1 | 199.9 |
Mason County against its neighbors
Logan County has the most data center MW among the neighbors, 500 MW. 4 of the 4 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 |
|---|---|---|---|---|---|
| Logan County | 1 | 666 | 0.69x | ||
| Tazewell County | 0 | 2,568 | 0x | ||
| Mason County this page | 0 | 1,433 | 0x | ||
| Cass County | 0 | 150 | 0x | ||
| Fulton County | 0 | 1,721 | 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.
5 counties shownEvery record in Mason County
Project name, developer, status, MW, in-service year and the developer’s contacts, for all 14 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 Mason County
We email you when a data center or power project in Mason 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 Mason County.
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