HVDC Tie NB to Mystic (585)
HVDC Tie NB to Mystic is a 900.0 MW generation interconnection project in Middlesex, Massachusetts with a current status of withdrawn. It is proposed to connect at NB 345 kV Coleson Cove substation to NSTAR 345 kV Mystic substation.
900.0 MWCapacity
WithdrawnStatus
BOSTMarket
GenerationTechnology
Project facts
| Canonical name | HVDC Tie NB to Mystic |
|---|---|
| Queue ID | 585 |
| Status | withdrawn |
| Source status | W |
| Market | BOST |
| Technology | Generation |
| Capacity | 900.0 MW |
| State | Massachusetts |
| County | Middlesex |
| Point of interconnection | NB 345 kV Coleson Cove substation to NSTAR 345 kV Mystic substation |
| Requested (queue) date | 2015-12-14 |
| Proposed in-service date | 2020-12-30 |
| Operational date | — |
| Withdrawn date | 2018-03-05 |
| Developer | — |
| Utility / transmission owner | ISO-NE |
What changed
| Observed | Field | Old value | New value | Materiality |
|---|---|---|---|---|
| 2026-08-04 | new_project | — | withdrawn | high |
Explore related data
Source last checked2026-08-04
Data last materially changed2026-08-04
Page data generated2026-08-28
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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