Marshall County, Iowa
Marshall County, Iowa has 28 power projects in the FieldProspects database: 24 operating plants totaling 1.2 GW and 4 planned projects totaling 717 MW. No data center record lists the county. Natural Gas leads with 972.4 MW across 8 projects.
Marshall County and its neighbors
Counties shaded by data center MW on record, planned to operating. 4 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
of the county's operating generation is in the queue as new capacity: 717 MW planned across 4 projects against 1.2 GW operating, 1 of the planned project already late.
Technology mix
28 projects, 1.9 GW planned and operating
Power generation in the county
24 plants operate inside Marshall County, 1.2 GW. The queue adds 717 MW across 4 projects, and one of them is past its listed in-service date.
Operating and planned generation by technology
MW in Marshall County
View as table
| Technology | Status | Projects | MW |
|---|---|---|---|
| Natural Gas | Operating | 7 | 897.4 |
| Natural Gas | Planned | 1 | 75 |
| Wind | Operating | 3 | 273.6 |
| Wind | Planned | 2 | 542 |
| Battery Storage | Operating | 1 | 0.3 |
| Battery Storage | Planned | 1 | 100 |
| Oil | Operating | 11 | 15.2 |
| Solar | Operating | 2 | 3.4 |
Planned generation by listed in-service year
MW. Years before 2026 are past due.
View as table
| Year | Planned projects | MW |
|---|---|---|
| 2024 | 1 | 75 |
| 2025 | 0 | 0 |
| 2026 | 0 | 0 |
| 2027 | 1 | 100 |
| 2028 | 0 | 0 |
| 2029 | 0 | 0 |
| 2030 | 2 | 542 |
Marshall County against its neighbors
Story County has the most data center MW among the neighbors, 1 GW. 3 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 |
|---|---|---|---|---|---|
| Story County | 1 | 400 | 2.3x | ||
| Marshall County this page | 0 | 717 | 0x | ||
| Grundy County | 0 | 0 | 0x | ||
| Tama County | 0 | 269 | 0x | ||
| Hardin County | 0 | 217 | 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 Marshall County
Project name, developer, status, MW, in-service year and the developer’s contacts, for all 28 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 Marshall County
We email you when a data center or power project in Marshall 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 Marshall County.
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