Barnstable County, MA interconnection queue
1 interconnection applications are pending in Barnstable County, MA, requesting 500 MW of new generating capacity, as of 15 August 2026. 2 projects have been built here and 29 have been withdrawn since 1998.
Source: interconnection queues published by ISONE. 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 Barnstable County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Battery | 1 | 500 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 2 | 338 MW | 6.2% |
| Still pending | 1 | 500 MW | 3.1% |
| Withdrawn | 29 | 1.6 GW | 90.6% |
| 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 |
|---|---|---|---|---|---|
| HVDC Line | Nuclear | 1.0 GW | withdrawn | 2015-02 | ISONE |
| Battery Storage | Battery | 500 MW | active | 2024-05 | ISONE |
| Canal 3 | Gas | 333 MW | completed | 2014-03 | ISONE |
| Battery Storage | Battery | 200 MW | withdrawn | 2021-12 | ISONE |
| Energy Storage | Battery | 150 MW | withdrawn | 2017-11 | ISONE |
| Battery Storage | Battery | 143 MW | withdrawn | 2018-03 | ISONE |
| Group @ Hatchville 936 - EMA ASO | Solar | 18 MW | withdrawn | 2022-06 | ISONE |
| Eversource Group @ Sandwich 916 | Solar | 12 MW | withdrawn | 2020-04 | ISONE |
| Group @ Orleans 975 - EMA ASO | Solar | 10 MW | withdrawn | 2022-06 | ISONE |
| Eversource Group @ Valley 715 | Solar | 10 MW | withdrawn | 2020-04 | ISONE |
| Eversource Group @ Falmouth 993 | Solar | 8 MW | withdrawn | 2020-04 | ISONE |
| Hyannis 961 - EMA ASO | Solar | 5 MW | withdrawn | 2022-06 | ISONE |
| Solar + Battery Storage | Solar | 5 MW | withdrawn | 2021-04 | ISONE |
| ENA Old Falmouth Road PV + Storage | Solar | 5 MW | completed | 2020-04 | ISONE |
| Sandwich 916 - EMA ASO | Solar | 5 MW | withdrawn | 2022-06 | ISONE |
How this county ranks
Barnstable County ranks #618 of 1,607 US counties by capacity currently queued, and #4 of 12 in Massachusetts.
Other Massachusetts counties in the queue
| County | Pending | Capacity queued |
|---|---|---|
| Bristol County | 2 | 1.4 GW |
| Middlesex County | 5 | 1.3 GW |
| Suffolk County | 2 | 550 MW |
| Norfolk County | 2 | 470 MW |
| Berkshire County | 2 | 426 MW |
| Essex County | 2 | 425 MW |
| Worcester County | 2 | 384 MW |
| Hampden County | 2 | 295 MW |
Go deeper on Barnstable 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 Barnstable County on the map County reports All of Massachusetts