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Battery storage · San Joaquin County, California
ALTA CASA STORAGE
A 515 MW battery storage project in San Joaquin County, California. ALTA CASA STORAGE has money committed on record: a signed interconnection agreement, a financing close or a tax-credit filing. No public record read so far names its builder.
The record
What the public record says about ALTA CASA STORAGE, as of 22 Oct 2026.
| Stage | Financed |
|---|---|
| Construction start | Q3 2030 estimate |
| Size | 515 MW |
| Location | San Joaquin County, California (to about 10 km) |
| Developer | Not named in any record read |
| Grid operator | CAISO |
| 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 San Joaquin County
| Project | Stage | Size |
|---|---|---|
| NOOSA ENERGY STORAGEBattery storage | Under construction | 99 MW |
| Tracy BESSBattery storage | Under construction | 40 MW |
| POTENTIA-VIRIDIUtility solar | Financed | 410 MW |
| POTENTIA-VIRIDIOnshore wind | Financed | 409 MW |
| PRESIDIOUtility solar | Financed | 357 MW |
| PATHFINDER STORAGEBattery storage | Financed | 268 MW |
More
Questions
ALTA CASA STORAGE, in short.
Where is ALTA CASA STORAGE?
ALTA CASA STORAGE is a 515 MW battery storage project in San Joaquin County, California, in CAISO'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 ALTA CASA STORAGE?
Groundtrace estimates construction starts in the third quarter of 2030. 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 ALTA CASA STORAGE?
No public record read so far names its developer.
Who is building ALTA CASA STORAGE?
No public record read so far names a builder for ALTA CASA 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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