1200 MW DC Transmission Line (1158)

1200 MW DC Transmission Line is a 1,200.0 MW generation interconnection project with a current status of withdrawn. It is proposed to connect at Mystic 345 kV Substation.

1,200.0 MWCapacity
WithdrawnStatus
BOSTMarket
GenerationTechnology

Project facts

Canonical name1200 MW DC Transmission Line
Queue ID1158
Statuswithdrawn
Source statusW
MarketBOST
TechnologyGeneration
Capacity1,200.0 MW
StateMassachusetts
County
Point of interconnectionMystic 345 kV Substation
Requested (queue) date2021-08-19
Proposed in-service date2028-05-31
Operational date
Withdrawn date2023-06-21
Developer
Utility / transmission ownerISO-NE

What changed

ObservedFieldOld valueNew valueMateriality
2026-08-04new_projectwithdrawnhigh

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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