Interconnection queue › Massachusetts › Storage
Snapshot of 2026-08-09 · 163 projects
163 storage projects are in the interconnection queue with a Massachusetts location, totalling 23,745 MW across the 163 that publish a capacity.
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| ISO | Projects | Capacity |
|---|---|---|
| ISO-NE | 163 | 23,745 MW |
| Status | Projects |
|---|---|
| (not published) | 163 |
| County | Projects | Capacity |
|---|---|---|
| Worcester | 36 | 3,680 MW |
| Bristol | 26 | 4,436 MW |
| Hampden | 22 | 3,161 MW |
| Middlesex | 17 | 2,925 MW |
| Norfolk | 14 | 2,276 MW |
| Franklin | 10 | 913 MW |
| Plymouth | 9 | 990 MW |
| Berkshire | 8 | 1,165 MW |
| Essex | 7 | 1,141 MW |
| Hampshire | 5 | 388 MW |
| Suffolk | 4 | 1,526 MW |
| Barnstable | 4 | 993 MW |
| Wocester | 1 | 153 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 |
|---|---|---|---|---|---|---|
| Battery Storage | ISO-NE | Suffolk | 700 | not published | 8/4/2020 | 6/1/2024 |
| Battery Storage | ISO-NE | Bristol | 529 | not published | 7/14/2023 | 3/31/2028 |
| Battery Storage | ISO-NE | Middlesex | 508 | not published | 6/15/2021 | 5/31/2028 |
| Battery Storage | ISO-NE | Middlesex | 500 | not published | 8/28/2020 | 6/1/2025 |
| Battery Storage | ISO-NE | Barnstable | 500 | not published | 5/28/2024 | 12/1/2028 |
| Battery Storage | ISO-NE | Middlesex | 500 | not published | 6/11/2024 | 4/27/2028 |
| Battery Storage | ISO-NE | Worcester | 408 | not published | 4/8/2024 | 8/30/2028 |
| Battery Storage | ISO-NE | Franklin | 366 | not published | 4/9/2024 | 8/30/2028 |
| Battery Storage | ISO-NE | Bristol | 350 | not published | 10/12/2023 | 9/30/2027 |
| Battery Storage | ISO-NE | Essex | 310 | not published | 4/21/2022 | 8/1/2032 |
| Battery Storage Increase (QP1238) | ISO-NE | Norfolk | 301 | not published | 2/24/2023 | 11/12/2027 |
| Battery Storage | ISO-NE | Hampden | 301 | not published | 3/1/2023 | 11/20/2026 |
| ISO | We last read | Source last changed | Source |
|---|---|---|---|
| ISO-NE | 2026-08-09 | 2026-08-09 | 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is not a permit, a contract, or a guarantee that a project will be built; most projects in every queue are eventually withdrawn.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.