Bear Swamp Unit 1 and 2 Upgrade (592)

Bear Swamp Unit 1 and 2 Upgrade is a 66.0 MW other interconnection project in Berkshire, Massachusetts with a current status of operational. It is proposed to connect at GRID 230 kV Bear Swamp substation.

66.0 MWCapacity
OperationalStatus
WMAMarket
OtherTechnology

Project facts

Canonical nameBear Swamp Unit 1 and 2 Upgrade
Queue ID592
Statusoperational
Source statusC
MarketWMA
TechnologyOther
Capacity66.0 MW
StateMassachusetts
CountyBerkshire
Point of interconnectionGRID 230 kV Bear Swamp substation
Requested (queue) date2016-01-21
Proposed in-service date
Operational date2023-01-06
Withdrawn date
Developer
Utility / transmission ownerISO-NE

Cross-source records

This project is also observed in: Lawrence Berkeley National Laboratory — Queued Up interconnection dataset. interXdata links these source records without double-counting the project.

What changed

ObservedFieldOld valueNew valueMateriality
2026-08-04new_projectoperationalhigh

Explore related data

Source last checked2026-08-04
Data last materially changed2026-08-04
Page data generated2026-08-27

Provenance: isone-irtt. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.

Follow this project and get an alert when its status, capacity, developer, or schedule changes.

Start tracking with interXdata