All industries › Onshore wind › Oklahoma › Mammoth Plains
Onshore wind · Dewey County, Oklahoma
Mammoth Plains
A 226 MW onshore wind project in Dewey County, Oklahoma. Mammoth Plains is built and in service. Public records name Mammoth Plains Wind Project as its developer. No public record read so far names its builder.
The record
What the public record says about Mammoth Plains, as of 23 Oct 2026.
| Stage | Operating |
|---|---|
| Construction start | In service since 2014 |
| Size | 226 MW |
| Location | Dewey County, Oklahoma (to about 10 km) |
| Developer | Mammoth Plains Wind Project |
| Grid operator | — |
| Builder (EPC) | Not named yet |
| Trade subcontractors | in the app |
| People to call | in the app |
| Phase windows | in the app |
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What happened
Each change dated by the scene or the document, newest first.
No change on record since Groundtrace started tracking it.
Who was named on it, and when, is in the app.
Also in Dewey County
| Project | Stage | Size |
|---|---|---|
| Mammoth Plains Energy StorageBattery storage | Queued | 150 MW |
| Mammoth Plains Energy Storage IIBattery storage | Queued | 101 MW |
| Unnamed 42 MW wind projectOnshore wind | Queued | 42 MW |
| Crossroads Wind FarmOnshore wind | Operating | 228 MW |
| Seiling Wind IOnshore wind | Operating | 199 MW |
| Taloga WindOnshore wind | Operating | 130 MW |
More
Questions
Mammoth Plains, in short.
Where is Mammoth Plains?
Mammoth Plains is a 226 MW onshore wind project in Dewey County, Oklahoma. The public page places it to within about ten kilometres; the precise location is in the subscriber record.
When does construction start on Mammoth Plains?
Mammoth Plains is built and in service since 2014.
Who is developing Mammoth Plains?
Mammoth Plains Wind Project, as the public record names it.
Who is building Mammoth Plains?
No public record read so far names a builder for Mammoth Plains. Groundtrace leaves the field empty rather than guess, and fills it when a permit, a filing or the builder's own page names one.
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