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Battery storage · Hidalgo County, Texas
Gunnar BESS
A 155 MW battery storage project in Hidalgo County, Texas. Gunnar BESS has work under way on site. Public records name Gunnar Reliability Project LLC as its developer. A builder is on record; its name and the people to call are in the app.
The record
What the public record says about Gunnar BESS, as of 22 Oct 2026.
| Stage | Under construction |
|---|---|
| Construction start | Q3 2025 permit on file |
| Size | 155 MW |
| Location | Hidalgo County, Texas (to about 10 km) |
| Developer | Gunnar Reliability Project LLC |
| Grid operator | ERCOT |
| Builder (EPC) | on record, in the app |
| 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 |
| Big Five StorageBattery storage | Under construction | 102 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 |
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Questions
Gunnar BESS, in short.
Where is Gunnar BESS?
Gunnar BESS is a 155 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 Gunnar BESS?
A construction permit on file dates the start of work to the third quarter of 2025.
Who is developing Gunnar BESS?
Gunnar Reliability Project LLC, as the public record names it.
Who is building Gunnar BESS?
A builder is named for Gunnar BESS in the public record. Its name, the trade subcontractors and the people to call are in the subscriber record, each with the record that names it.
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