Interconnection queue › Maine › Hydro
Snapshot of 2026-08-10 · 27 projects
27 hydro projects are in the interconnection queue with a Maine location, totalling 1,085 MW across the 26 that publish a capacity.
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| ISO | Projects | Capacity |
|---|---|---|
| ISO-NE | 27 | 1,085 MW |
| Status | Projects |
|---|---|
| (not published) | 27 |
| County | Projects | Capacity |
|---|---|---|
| Penobscot | 9 | 9 MW |
| Somerset | 7 | 8 MW |
| Androscoggin | 3 | 6 MW |
| Oxford | 2 | 1 MW |
| York | 2 | 2 MW |
| Wiscasset | 1 | 1,000 MW |
| Lewiston | 1 | 1 MW |
| Oxford/Franklin/Androscoggin | 1 | 28 MW |
| Androscoggin/Franklin | 1 | 28 MW |
The 12 highest-capacity rows in this page's exact scope, ordered by the capacity the ISO published. Projects without a published capacity are not ranked here and remain included in the totals above.
| Project | ISO | County | MW | Status | Queue date | Proposed operation |
|---|---|---|---|---|---|---|
| Pumped Storage Project | ISO-NE | Wiscasset | 1,000 | not published | 7/17/2008 | 6/1/2014 |
| Hydro | ISO-NE | Oxford/Franklin/Androscoggin | 28 | not published | 2/24/2016 | 6/1/2019 |
| Riley-Jay-Otis-Livermore | ISO-NE | Androscoggin/Franklin | 28 | not published | 2/3/2020 | 11/1/2024 |
| Gulf Island Unit 2 Increase | ISO-NE | Androscoggin | 4 | not published | 12/3/2010 | 4/26/2011 |
| Wyman Hydro Uprate U3 | ISO-NE | Somerset | 4 | not published | 5/23/2011 | 3/30/2016 |
| Hydro | ISO-NE | Penobscot | 4 | not published | 3/4/2011 | 8/15/2012 |
| Milford Hydro Expansion | ISO-NE | Penobscot | 2 | not published | 3/4/2011 | 11/4/2011 |
| Wyman Hydro Uprate U1 | ISO-NE | Somerset | 2 | not published | 5/23/2011 | 3/30/2016 |
| Hydro | ISO-NE | Penobscot | 2 | not published | 3/4/2011 | 8/15/2012 |
| Weston Station Uprate U4 | ISO-NE | Somerset | 2 | not published | 2/2/2012 | 7/31/2015 |
| Rumford Falls Unit #3 increase | ISO-NE | Oxford | 1 | not published | 12/24/2009 | 6/1/2010 |
| Skelton Station Modernization Phase 1 | ISO-NE | York | 1 | not published | 8/3/2011 | 12/28/2013 |
| ISO | We last read | Source last changed | Source |
|---|---|---|---|
| ISO-NE | 2026-08-10 | 2026-08-10 | source file |
Compiled from each ISO's own published interconnection queue report. Queue position is not a permit, a contract, or a guarantee that a project will be built; most projects in every queue are eventually withdrawn. Figures are reproduced as published, are provided for informational purposes only, and carry no warranty of accuracy or completeness. Always verify against the ISO's own report before relying on any figure.