Interconnection queue in Massachusetts
Data: Lawrence Berkeley National Laboratory and GridTracker, Queued Up, as of Dec 31, 2025.
This is an annual snapshot. A request's status may have changed since. Current status at Interconnection.fyi.
LBNL licenses the file CC BY 4.0, so project rows are shown and the file can be downloaded from our data library.
Statewide
- Active capacity
- 11,209 MW
- Active requests
- 35
- Median years in queue (active)
- 4.4
- Withdrawn, of requests entered by 2020
- 70%
| Type | Active capacity (MW) | Projects |
|---|---|---|
| Solar | 7 | 1 |
| Wind | 5,328 | 8 |
| Storage | 5,867 | 24 |
| Hybrid | 8 | 2 |
By county
| County | Active capacity (MW) | Projects | Solar | Wind | Storage | Gas | Hybrid | Other | Median years in queue (active) | Withdrawn, of requests entered by 2020 |
|---|---|---|---|---|---|---|---|---|---|---|
| County not given | 5,323 | 7 | 5,323 | 6.0 | ||||||
| Middlesex | 1,337 | 4 | 1,337 | 3.1 | 75% of 24 | |||||
| Norfolk | 721 | 4 | 720 | 1 | 6.8 | |||||
| Worcester | 684 | 3 | 684 | 1.7 | 74% of 50 | |||||
| Berkshire | 667 | 5 | 5 | 662 | 1.7 | |||||
| Suffolk | 556 | 2 | 556 | 4.6 | ||||||
| Bristol | 518 | 2 | 518 | 2.4 | 77% of 22 | |||||
| Barnstable | 500 | 1 | 500 | 1.6 | ||||||
| Hampden | 465 | 3 | 465 | 2.8 | 77% of 26 | |||||
| Essex | 425 | 2 | 425 | 1.6 | ||||||
| Plymouth | 7 | 1 | 7 | 7.9 | 76% of 21 | |||||
| Franklin | 7 | 1 | 7 | 4.4 | ||||||
| Hampshire | 0 | 0 | ||||||||
| Dukes | 0 | 0 |
Capacity is each request's first-listed capacity, so a hybrid's battery is not added on top. Most requests in a queue never get built.
Active requests
Status is as of Dec 31, 2025. Current status at Interconnection.fyi.
| Project | County | Type | MW | Entered the queue | Study phase | Utility or operator | Live status |
|---|---|---|---|---|---|---|---|
| SouthCoast Wind 1 | Offshore Wind | 1,200 | 2021-04-13 | IA Executed | ISO-NE | Current status | |
| Bay State Wind 4 Offshore Wind | Offshore Wind | 1,200 | 2019-12-18 | IA Executed | ISO-NE | Current status | |
| Offshore Wind | Offshore Wind | 827 | 2018-12-12 | Facility Study | ISO-NE | Current status | |
| Vineyard Offshore Wind | Offshore Wind | 800 | 2016-11-08 | IA Executed | ISO-NE | Current status | |
| Park City Offshore Wind | Offshore Wind | 791 | 2017-12-15 | IA Executed | ISO-NE | Current status | |
| Battery Storage | Middlesex | Battery | 508 | 2021-06-15 | IA Executed | ISO-NE | Current status |
| Battery Storage | Barnstable | Battery | 500 | 2024-05-28 | In Progress (unknown study) | ISO-NE | Current status |
| Battery Storage | Middlesex | Battery | 500 | 2024-06-11 | In Progress (unknown study) | ISO-NE | Current status |
| Offshore Wind Inc. (Q806) | Offshore Wind | 487 | 2021-03-17 | Facility Study | ISO-NE | Current status | |
| Battery Storage | Bristol | Battery | 350 | 2023-10-12 | In Progress (unknown study) | ISO-NE | Current status |
| Lite Brite Battery Storage | Suffolk | Battery | 306 | 2021-07-13 | IA Executed | ISO-NE | Current status |
| Battery Storage | Norfolk | Battery | 300 | 2022-03-22 | Feasibility Study | ISO-NE | Current status |
| Battery Storage | Worcester | Battery | 300 | 2024-04-08 | In Progress (unknown study) | ISO-NE | Current status |
| Battery Storage | Berkshire | Battery | 290 | 2024-04-09 | In Progress (unknown study) | ISO-NE | Current status |
| Hecate Energy Eastern Ave Energy Center | Suffolk | Battery | 250 | 2021-04-08 | IA Executed | ISO-NE | Current status |
| Battery Storage | Hampden | Battery | 250 | 2023-03-09 | Feasibility Study | ISO-NE | Current status |
| Medway Grid Battery Storage | Norfolk | Battery | 250 | 2019-03-13 | IA Executed | ISO-NE | Current status |
| Battery Storage | Essex | Battery | 225 | 2024-06-06 | In Progress (unknown study) | ISO-NE | Current status |
| Norman Street Battery Storage | Middlesex | Battery | 204 | 2021-03-18 | IA Executed | ISO-NE | Current status |
| Battery Storage | Worcester | Battery | 204 | 2022-10-07 | IA Executed | ISO-NE | Current status |
| Battery Storage | Essex | Battery | 200 | 2024-06-06 | In Progress (unknown study) | ISO-NE | Current status |
| Battery Storage | Worcester | Battery | 180 | 2024-05-31 | In Progress (unknown study) | ISO-NE | Current status |
| Battery Storage | Hampden | Battery | 170 | 2024-05-28 | In Progress (unknown study) | ISO-NE | Current status |
| Battery Storage | Berkshire | Battery | 170 | 2024-05-30 | In Progress (unknown study) | ISO-NE | Current status |
| Energy Storage | Norfolk | Battery | 170 | 2019-04-11 | IA Executed | ISO-NE | Current status |
| Battery Storage | Bristol | Battery | 168 | 2023-06-20 | In Progress (unknown study) | ISO-NE | Current status |
| Battery Storage | Berkshire | Battery | 136 | 2024-04-09 | In Progress (unknown study) | ISO-NE | Current status |
| Battery Storage | Middlesex | Battery | 125 | 2024-06-04 | In Progress (unknown study) | ISO-NE | Current status |
| Bear Swamp Unit 1 and 2 Upgrade | Berkshire | Other Storage | 66 | 2016-01-21 | IA Executed | ISO-NE | Current status |
| West Springfield 45 MW BESS | Hampden | Battery | 45 | 2022-06-08 | IA Executed | ISO-NE | Current status |
| Offshore wind Inc (QP700) | Offshore Wind | 18 | 2021-08-13 | Facility Study | ISO-NE | Current status | |
| Solar | Plymouth | Solar | 7 | 2018-01-24 | IA Executed | NSTAR | Current status |
| Battery addition | Franklin | Hydro+Battery | 7 | 2021-08-06 | IA Executed | ISO-NE | Current status |
| Berkshire Wind Increase | Berkshire | Wind | 5 | 2012-08-28 | IA Executed | NU | Current status |
| NEA Bell. Uprate (Northeast Energy Associates, LP) | Norfolk | Gas+Oil | 1 | 2015-03-04 | IA Executed | ISO-NE | Current status |
Lawrence Berkeley National Laboratory and GridTracker · Queued Up: Interconnection Queue Data File (Lawrence Berkeley National Laboratory) · data for 2025 · as of May 7, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by May 7, 2027. Last checked for an update: Oct 31, 2026.