Northern Pass Transmission Project (300 kV HVDC/AC Tie) - Import Only (499)

Northern Pass Transmission Project (300 kV HVDC/AC Tie) - Import Only is a 1,090.0 MW generation interconnection project in Rockingham, New Hampshire with a current status of withdrawn. It is proposed to connect at HQ Des Cantes substation to PSNH Deerfield substation.

1,090.0 MWCapacity
WithdrawnStatus
NHMarket
GenerationTechnology

Project facts

Canonical nameNorthern Pass Transmission Project (300 kV HVDC/AC Tie) - Import Only
Queue ID499
Statuswithdrawn
Source statusW
MarketNH
TechnologyGeneration
Capacity1,090.0 MW
StateNew Hampshire
CountyRockingham
Point of interconnectionHQ Des Cantes substation to PSNH Deerfield substation
Requested (queue) date2015-02-16
Proposed in-service date2022-12-29
Operational date
Withdrawn date2019-08-14
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 generated2026-08-27

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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