All industries › Utility solar › Texas › Mandolin Solar SLF
Utility solar · Starr County, Texas
Mandolin Solar SLF
A 300 MW utility solar project in Starr County, Texas. Mandolin Solar SLF has asked to connect to the grid or filed for its first approvals; nothing on record yet commits money to it. Public records name Mandolin Energy Center I, LLC as its developer. No public record read so far names its builder.
The record
What the public record says about Mandolin Solar SLF, as of 22 Oct 2026.
| Stage | Queued |
|---|---|
| Construction start | Q4 2027 estimate |
| Size | 300 MW |
| Location | Starr County, Texas (to about 10 km) |
| Developer | Mandolin Energy Center I, 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 developed by Mandolin Energy Center I, LLC
| Project | Stage | Size |
|---|---|---|
| Mandolin Solar III SLFUtility solar · Starr County, Texas | Queued | 250 MW |
Also in Starr County
| Project | Stage | Size |
|---|---|---|
| Diamondback solarUtility solar | Pre-construction | 200 MW |
| Half Moon SolarUtility solar | Financed | 512 MW |
| Bullring Wind 1Onshore wind | Financed | 304 MW |
| Bullring Wind 2Onshore wind | Financed | 304 MW |
| Bullring Wind 3Onshore wind | Financed | 190 MW |
| Bordertown BESSBattery storage | Financed | 100 MW |
More
Questions
Mandolin Solar SLF, in short.
Where is Mandolin Solar SLF?
Mandolin Solar SLF is a 300 MW utility solar project in Starr 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 Mandolin Solar SLF?
Groundtrace estimates construction starts in the fourth 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 Mandolin Solar SLF?
Mandolin Energy Center I, LLC, as the public record names it.
Who is building Mandolin Solar SLF?
No public record read so far names a builder for Mandolin Solar SLF. 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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