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Utility solar · Atascosa County, Texas
Grandslam Solar
A 122 MW utility solar project in Atascosa County, Texas. Grandslam Solar has money committed on record: a signed interconnection agreement, a financing close or a tax-credit filing. Public records name Grandslam Solar, L.L.C. as its developer. No public record read so far names its builder.
The record
What the public record says about Grandslam Solar, as of 23 Oct 2026.
| Stage | Financed |
|---|---|
| Construction start | Q2 2026 estimate |
| Size | 122 MW |
| Location | Atascosa County, Texas (to about 10 km) |
| Developer | Grandslam Solar, L.L.C. |
| 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 Atascosa County
| Project | Stage | Size |
|---|---|---|
| Paradiso BESSBattery storage | Financed | 102 MW |
| Reis SolarUtility solar | Permitted | 105 MW |
| Bluewind BESSBattery storage | Queued | 246 MW |
| Amphion Solar Phase 2Utility solar | Queued | 206 MW |
| Amphion StorageBattery storage | Queued | 200 MW |
| Amphion Solar Phase 1Utility solar | Queued | 181 MW |
More
Questions
Grandslam Solar, in short.
Where is Grandslam Solar?
Grandslam Solar is a 122 MW utility solar project in Atascosa 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 Grandslam Solar?
Groundtrace estimates construction starts in the second 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 Grandslam Solar?
Grandslam Solar, L.L.C., as the public record names it.
Who is building Grandslam Solar?
No public record read so far names a builder for Grandslam Solar. 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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