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Battery storage · Cameron County, Texas
Ouroboros Grid BESS 4
A 201 MW battery storage project in Cameron County, Texas. Ouroboros Grid BESS 4 has asked to connect to the grid or filed for its first approvals; nothing on record yet commits money to it. Public records name Ouroboros Grid BESS Unit 4 as its developer. No public record read so far names its builder.
The record
What the public record says about Ouroboros Grid BESS 4, as of 23 Oct 2026.
| Stage | Queued |
|---|---|
| Construction start | Q2 2028 estimate |
| Size | 201 MW |
| Location | Cameron County, Texas (to about 10 km) |
| Developer | Ouroboros Grid BESS Unit 4 |
| Grid operator | ERCOT |
| 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.
No change on record since Groundtrace started tracking it.
Who was named on it, and when, is in the app.
Also in Cameron County
| Project | Stage | Size |
|---|---|---|
| Arroyo StorageBattery storage | Under construction | 184 MW |
| Arroyo SolarUtility solar | Under construction | 100 MW |
| Harlingen #1 BESS 1Battery storage | Under construction | 10 MW |
| Mesquite Clean Energy Center (BESS)Battery storage | Under construction | 10 MW |
| Eval StorageBattery storage | Financed | 252 MW |
| Resaca Oasis StorageBattery storage | Financed | 201 MW |
More
Questions
Ouroboros Grid BESS 4, in short.
Where is Ouroboros Grid BESS 4?
Ouroboros Grid BESS 4 is a 201 MW battery storage project in Cameron County, Texas, in ERCOT's interconnection queue. The public page places it to within about ten kilometres; the precise location is in the subscriber record.
When does construction start on Ouroboros Grid BESS 4?
Groundtrace estimates construction starts in the second quarter of 2028. This is an estimate from the project's filings, not a date any record states; the exact date and the record behind it are in the subscriber record.
Who is developing Ouroboros Grid BESS 4?
Ouroboros Grid BESS Unit 4, as the public record names it.
Who is building Ouroboros Grid BESS 4?
No public record read so far names a builder for Ouroboros Grid BESS 4. 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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