All industries › Utility solar › California › Stateline Solar
Utility solar · San Bernardino County, California
Stateline Solar
A 300 MW utility solar project in San Bernardino County, California. Stateline Solar is built and in service. Public records name Southern Power Co as its developer. No public record read so far names its builder.
The record
What the public record says about Stateline Solar, as of 23 Oct 2026.
| Stage | Operating |
|---|---|
| Construction start | In service since 2015 |
| Size | 300 MW |
| Location | San Bernardino County, California (to about 10 km) |
| Developer | Southern Power Co |
| Grid operator | — |
| 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
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- Entered the public record for the first time.
Who was named on it, and when, is in the app.
Also developed by Southern Power Co
| Project | Stage | Size |
|---|---|---|
| Millers Branch SolarUtility solar · Haskell County, Texas | Under construction | 132 MW |
| Kay WindOnshore wind · Kay County, Oklahoma | Operating | 299 MW |
| Bethel Wind FarmOnshore wind · Castro County, Texas | Operating | 276 MW |
| Wake Wind Energy CenterOnshore wind · Crosby County, Texas | Operating | 257 MW |
| RE TRANQUILLITYUtility solar · Fresno County, California | Operating | 200 MW |
| Reading Wind ProjectOnshore wind · Lyon County, Kansas | Operating | 200 MW |
Also in San Bernardino County
| Project | Stage | Size |
|---|---|---|
| Vidal Energy CenterUtility solar | Under construction | 160 MW |
| OVERNIGHT SOLARUtility solar | Under construction | 150 MW |
| BALDY MESA 2Utility solar | Under construction | 50 MW |
| Baldy Mesa StorageBattery storage | Under construction | 50 MW |
| CONDUIT ENERGY STORAGEBattery storage | Financed | 513 MW |
| TROLLEYBattery storage | Financed | 406 MW |
More
Questions
Stateline Solar, in short.
Where is Stateline Solar?
Stateline Solar is a 300 MW utility solar project in San Bernardino County, California. The public page places it to within about ten kilometres; the precise location is in the subscriber record.
When does construction start on Stateline Solar?
Stateline Solar is built and in service since 2015.
Who is developing Stateline Solar?
Southern Power Co, as the public record names it.
Who is building Stateline Solar?
No public record read so far names a builder for Stateline 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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