Penobscot County, ME interconnection queue
0 interconnection applications are pending in Penobscot County, ME, requesting 0 MW of new generating capacity, as of 15 August 2026. 26 projects have been built here and 23 have been withdrawn since 1997.
Source: interconnection queues published by the transmission providers serving this county. Parsed and normalised by Watt Street. Data as of 15 August 2026. A queued project is a request, not a commitment.
What is waiting in Penobscot County, by fuel
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 26 | 802 MW | 53.1% |
| Still pending | 0 | 0 MW | 0.0% |
| Withdrawn | 23 | 948 MW | 46.9% |
| Suspended | 0 | — | 0.0% |
Withdrawal is the ordinary outcome of an interconnection application nationally, not a sign of a problem in this county. Most withdrawals are a developer testing a site and moving on.
The largest projects on file
| Project | Fuel | Capacity | Status | Filed | Queue |
|---|---|---|---|---|---|
| Great Northern - Millinocket | Wind | 126 MW | completed | 2001-12 | ISONE |
| Millinocket Frequency Conversion | Wind | 126 MW | completed | 2015-02 | ISONE |
| Millinocket Battery additon | Wind | 126 MW | completed | 2019-04 | ISONE |
| Solar | Solar | 120 MW | withdrawn | 2020-05 | ISONE |
| Battery Storage | Battery | 112 MW | withdrawn | 2020-04 | ISONE |
| Battery Storage | Battery | 112 MW | withdrawn | 2020-04 | ISONE |
| Solar | Solar | 100 MW | withdrawn | 2020-09 | ISONE |
| Solar | Solar | 100 MW | withdrawn | 2020-10 | ISONE |
| Solar | Solar | 100 MW | withdrawn | 2020-11 | ISONE |
| Solar | Solar | 68 MW | withdrawn | 2024-02 | ISONE |
| Wind CNR | Wind | 61 MW | completed | 2023-04 | ISONE |
| Stetson Wind Phase I | Wind | 60 MW | completed | 2006-11 | ISONE |
| Passadumkeag Windpark | Wind | 40 MW | completed | 2011-02 | ISONE |
| Passadumkeag Windpark CNR Only | Wind | 40 MW | completed | 2014-03 | ISONE |
| Passadumkeag Wind CNR only | Wind | 40 MW | completed | 2017-04 | ISONE |
How this county ranks
Penobscot County ranks #1370 of 1,607 US counties by capacity currently queued, and #12 of 13 in Maine.
Other Maine counties in the queue
| County | Pending | Capacity queued |
|---|---|---|
| Knox County | 3 | 268 MW |
| York County | 3 | 216 MW |
| Somerset County | 2 | 158 MW |
| Hancock County | 1 | 100 MW |
| Androscoggin County | 2 | 40 MW |
| Oxford County | 1 | 18 MW |
| Cumberland County | 1 | 17 MW |
| Aroostook County | 0 | 0 MW |
Go deeper on Penobscot County
The interactive map plots every one of these applications, and a generated county report puts them in a sourced PDF with the date each figure was true on every page.
Open Penobscot County on the map County reports All of Maine