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Battery storage · Harris County, Texas
Rex Storage
A 256 MW battery storage project in Harris County, Texas. Rex Storage has asked to connect to the grid or filed for its first approvals; nothing on record yet commits money to it. Public records name Rex BESS, LLC as its developer. No public record read so far names its builder.
The record
What the public record says about Rex Storage, as of 23 Oct 2026.
| Stage | Queued |
|---|---|
| Construction start | Q4 2027 estimate |
| Size | 256 MW |
| Location | Harris County, Texas (to about 10 km) |
| Developer | Rex BESS, 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 Harris County
| Project | Stage | Size |
|---|---|---|
| Beacon StorageBattery storage | Under construction | 409 MW |
| Sigma StorageBattery storage | Under construction | 408 MW |
| Callisto II Energy CenterBattery storage | Under construction | 203 MW |
| Kegans BESS (Houston IV BESS)Battery storage | Under construction | 165 MW |
| Pamela Heights IBattery storage | Under construction | 102 MW |
| BRIDGELAND PV SEC 36Utility solar | Under construction | 53 acres |
More
Questions
Rex Storage, in short.
Where is Rex Storage?
Rex Storage is a 256 MW battery storage project in Harris 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 Rex Storage?
Groundtrace estimates construction starts in the fourth 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 Rex Storage?
Rex BESS, LLC, as the public record names it.
Who is building Rex Storage?
No public record read so far names a builder for Rex 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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