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Battery storage · Austin County, Texas
Symphony BESS
A 612 MW battery storage project in Austin County, Texas. Symphony BESS has asked to connect to the grid or filed for its first approvals; nothing on record yet commits money to it. Public records name Symphony BESS, LLC as its developer. No public record read so far names its builder.
The record
What the public record says about Symphony BESS, as of 22 Oct 2026.
| Stage | Queued |
|---|---|
| Construction start | Q2 2027 estimate |
| Size | 612 MW |
| Location | Austin County, Texas (to about 10 km) |
| Developer | Symphony 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 Austin County
| Project | Stage | Size |
|---|---|---|
| Sunrose Renewable Energy Solar SLFUtility solar | Queued | 310 MW |
| Saddlehorn Energy StorageBattery storage | Queued | 257 MW |
| Parula Energy CenterBattery storage | Queued | 251 MW |
| Agricola BESSBattery storage | Queued | 205 MW |
| Prost ESSBattery storage | Queued | 203 MW |
| BremRaek BESSBattery storage | Queued | 201 MW |
More
Questions
Symphony BESS, in short.
Where is Symphony BESS?
Symphony BESS is a 612 MW battery storage project in Austin 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 Symphony BESS?
Groundtrace estimates construction starts in the second 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 Symphony BESS?
Symphony BESS, LLC, as the public record names it.
Who is building Symphony BESS?
No public record read so far names a builder for Symphony 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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