Essex County, MA interconnection queue
2 interconnection applications are pending in Essex County, MA, requesting 425 MW of new generating capacity, as of 15 August 2026. 8 projects have been built here and 9 have been withdrawn since 1998.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 Essex County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Battery | 2 | 425 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 8 | 798 MW | 42.1% |
| Still pending | 2 | 425 MW | 10.5% |
| Withdrawn | 9 | 1.3 GW | 47.4% |
| 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 |
|---|---|---|---|---|---|
| Footprint Combined Cycle Unit | Gas | 716 MW | completed | 2012-01 | ISONE |
| Simple Cycle | Gas | 478 MW | withdrawn | 2014-02 | ISONE |
| Battery Storage | Battery | 310 MW | withdrawn | 2022-04 | ISONE |
| Battery Storage | Battery | 241 MW | withdrawn | 2023-03 | ISONE |
| Battery Storage | Battery | 225 MW | active | 2024-06 | ISONE |
| Battery Storage | Battery | 200 MW | active | 2024-06 | ISONE |
| Battery Storage | Battery | 150 MW | withdrawn | 2019-03 | ISONE |
| Peabody Power | Gas | 97 MW | withdrawn | 2003-02 | ISONE |
| Simple Cycle Gas Turbine | Gas | 62 MW | completed | 2016-07 | ISONE |
| Gas Turbine Increase | Gas | 11 MW | completed | 2013-02 | ISONE |
| NG NEMA Group DER Study | Battery | 10 MW | withdrawn | 2023-12 | ISONE |
| Salem Harbor Station Increase | Battery | 8 MW | completed | 2010-12 | ISONE |
| NG NEMA Group DER Study | Solar | 5 MW | withdrawn | 2023-12 | ISONE |
| BESS | Battery | 5 MW | withdrawn | 2025-01 | ISONE |
| Covanta Haverhill Landfill Gas | Gas | 2 MW | completed | 2006-12 | ISONE |
How this county ranks
Essex County ranks #674 of 1,607 US counties by capacity currently queued, and #7 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 |
| Barnstable County | 1 | 500 MW |
| Norfolk County | 2 | 470 MW |
| Berkshire County | 2 | 426 MW |
| Worcester County | 2 | 384 MW |
| Hampden County | 2 | 295 MW |
Go deeper on Essex 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 Essex County on the map County reports All of Massachusetts