All industries › Battery storage › Black Mesa BESS
Battery storage · Elmore County, Idaho
Black Mesa BESS
A 40 MW battery storage project in Elmore County, Idaho. Black Mesa BESS is built and in service. Public records name Idaho Power Co as its developer. No public record read so far names its builder.
The record
What the public record says about Black Mesa BESS, as of 23 Oct 2026.
| Stage | Operating |
|---|---|
| Construction start | In service since 2024 |
| Size | 40 MW |
| Location | Elmore County, Idaho (to about 10 km) |
| Developer | Idaho Power Co |
| Grid operator | — |
| Builder (EPC) | Not named yet |
| Trade subcontractors | in the app |
| People to call | in the app |
| Phase windows | in the app |
Every fact in the app links to the public record behind it, with how many records agree and whether it is confirmed, reported or an estimate. What the terms mean.
What happened
Each change dated by the scene or the document, newest first.
- Stormwater permit filed.
Who was named on it, and when, is in the app.
Also developed by Idaho Power Co
| Project | Stage | Size |
|---|---|---|
| Hemmingway BESSBattery storage · Owyhee County, Idaho | Operating | 166 MW |
| Boise Bench BESSBattery storage · Ada County, Idaho | Operating | 150 MW |
| Happy Valley Battery StorageBattery storage · Canyon County, Idaho | Operating | 82 MW |
| Franklin Battery StorageBattery storage · Twin Falls County, Idaho | Operating | 60 MW |
| Elmore BESSBattery storage · Elmore County, Idaho | Operating | 4 MW |
| Weiser BESSBattery storage · Washington County, Idaho | Operating | 3 MW |
Also in Elmore County
| Project | Stage | Size |
|---|---|---|
| Crimson Orchard Solar and BESSUtility solar | Under construction | 100 MW |
| IP request 667Utility solar | Financed | 400 MW |
| IP request 590Utility solar | Financed | 330 MW |
| IP request 551Utility solar | Financed | 240 MW |
| IP request 605Utility solar | Financed | 240 MW |
| IP request 636Utility solar | Financed | 149 MW |
More
Questions
Black Mesa BESS, in short.
Where is Black Mesa BESS?
Black Mesa BESS is a 40 MW battery storage project in Elmore County, Idaho. The public page places it to within about ten kilometres; the precise location is in the subscriber record.
When does construction start on Black Mesa BESS?
Black Mesa BESS is built and in service since 2024.
Who is developing Black Mesa BESS?
Idaho Power Co, as the public record names it.
Who is building Black Mesa BESS?
No public record read so far names a builder for Black Mesa BESS. 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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