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Battery storage · Hidalgo County, Texas
Big Five Storage
A 102 MW battery storage project in Hidalgo County, Texas. Big Five Storage has work under way on site. Public records name TX BESS 3 LLC as its developer. No public record read so far names its builder.
The record
What the public record says about Big Five Storage, as of 22 Oct 2026.
| Stage | Under construction |
|---|---|
| Construction start | Q3 2027 estimate |
| Size | 102 MW |
| Location | Hidalgo County, Texas (to about 10 km) |
| Developer | TX BESS 3 LLC |
| 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 Hidalgo County
| Project | Stage | Size |
|---|---|---|
| Monte Cristo II WindOnshore wind | Under construction | 234 MW |
| Gunnar BESSBattery storage | Under construction | 155 MW |
| North Edinburg BESS 1Battery storage | Under construction | 10 MW |
| Val Vista Grid BESS 2Battery storage | Financed | 211 MW |
| Val Vista Grid BESS 1Battery storage | Financed | 209 MW |
| McMEXICO STORAGEBattery storage | Queued | 202 MW |
More
Questions
Big Five Storage, in short.
Where is Big Five Storage?
Big Five Storage is a 102 MW battery storage project in Hidalgo 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 Big Five Storage?
Groundtrace estimates construction started in the third quarter of 2027. 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 Big Five Storage?
TX BESS 3 LLC, as the public record names it.
Who is building Big Five Storage?
No public record read so far names a builder for Big Five Storage. 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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