All industries › Utility solar › Pennsylvania › Mountain Holly
Utility solar · Columbia County, Pennsylvania
Mountain Holly
A 20 MW utility solar project in Columbia County, Pennsylvania. Mountain Holly has asked to connect to the grid or filed for its first approvals; nothing on record yet commits money to it. No public record read so far names its builder.
The record
What the public record says about Mountain Holly, as of 25 Oct 2026.
| Stage | Queued |
|---|---|
| Construction start | Q1 2026 estimate |
| Size | 20 MW |
| Location | Columbia County, Pennsylvania (to about 10 km) |
| Developer | Not named in any record read |
| Grid operator | PJM |
| 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 Columbia County
| Project | Stage | Size |
|---|---|---|
| Cottontail Solar 7Utility solar | Under construction | 35 MW |
| Stoneybrook SolarUtility solar | Financed | 20 MW |
| Unnamed 91 MW solar projectUtility solar | Queued | 91 MW |
| Unnamed 75 MW solar projectUtility solar | Queued | 75 MW |
| Unnamed 60 MW solar projectUtility solar | Queued | 60 MW |
| Unnamed 35 MW solar projectUtility solar | Queued | 35 MW |
More
Questions
Mountain Holly, in short.
Where is Mountain Holly?
Mountain Holly is a 20 MW utility solar project in Columbia County, Pennsylvania, in PJM'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 Mountain Holly?
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 Mountain Holly?
No public record read so far names its developer.
Who is building Mountain Holly?
No public record read so far names a builder for Mountain Holly. 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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