West Springfield 45 MW BESS (1272)
West Springfield 45 MW BESS is a 45.0 MW battery interconnection project in Hampden, Massachusetts with a current status of active. It is proposed to connect at West Springfield Station, 115kV Bus (existing 8C-3X 140 MVA transformer; position WS#2)..
45.0 MWCapacity
ActiveStatus
WMAMarket
BatteryTechnology
Project facts
| Canonical name | West Springfield 45 MW BESS |
|---|---|
| Queue ID | 1272 |
| Status | active |
| Source status | A |
| Market | WMA |
| Technology | Battery |
| Capacity | 45.0 MW |
| State | Massachusetts |
| County | Hampden |
| Point of interconnection | West Springfield Station, 115kV Bus (existing 8C-3X 140 MVA transformer; position WS#2). |
| Requested (queue) date | 2022-06-08 |
| Proposed in-service date | 2029-05-04 |
| Operational date | — |
| Withdrawn date | — |
| Developer | — |
| Utility / transmission owner | ISO-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
| Observed | Field | Old value | New value | Materiality |
|---|---|---|---|---|
| 2026-08-04 | new_project | — | active | high |
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.
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