All industries › Battery storage › Texas › Bufflehead BESS
Battery storage · Collin County, Texas
Bufflehead BESS
A 154 MW battery storage project in Collin County, Texas. Bufflehead BESS has money committed on record: a signed interconnection agreement, a financing close or a tax-credit filing. Public records name Boxcar Energy Storage, LLC as its developer. No public record read so far names its builder.
The record
What the public record says about Bufflehead BESS, as of 22 Oct 2026.
| Stage | Financed |
|---|---|
| Construction start | Q1 2026 estimate |
| Size | 154 MW |
| Location | Collin County, Texas (to about 10 km) |
| Developer | Boxcar Energy Storage, 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.
- Moved from under construction to financed.
Who was named on it, and when, is in the app.
Also developed by Boxcar Energy Storage, LLC
| Project | Stage | Size |
|---|---|---|
| Boxcar Energy StorageBattery storage · Collin County, Texas | Under construction | 150 MW |
Also in Collin County
| Project | Stage | Size |
|---|---|---|
| Mallard Energy StorageBattery storage | Under construction | 250 MW |
| Boxcar Energy StorageBattery storage | Under construction | 150 MW |
| Aligned Data Center Memory Tech Phase 1 AdditionData centers | Under construction | 11 acres |
| Aligned Plano DFW04Data centers | Under construction | 40 acres |
| CyrusOne DFW 4Data centers | Under construction | 12 acres |
| DataBank DFW3Data centers | Under construction | 16 acres |
More
Questions
Bufflehead BESS, in short.
Where is Bufflehead BESS?
Bufflehead BESS is a 154 MW battery storage project in Collin 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 Bufflehead BESS?
Groundtrace estimates construction starts in the first quarter of 2026. 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 Bufflehead BESS?
Boxcar Energy Storage, LLC, as the public record names it.
Who is building Bufflehead BESS?
No public record read so far names a builder for Bufflehead 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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