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Website · About · Legal · Privacy · Changelog · © 2026 Parisi Labs
  1. Home
  2. /Assets
  3. /Interties
  4. /Hudson Transmission Project
NYISO logo

Hudson Transmission Project

NYISO ↔ PJM · Back-to-back HVDC converter

A back-to-back converter in Ridgefield, New Jersey and a 345 kV cable under the Hudson to West 49th Street in Manhattan.

Now
250 MWPJM → NYISO
NYISO · as of Sep 26, 2:20 PM EDT
Between
NYISO and PJM
Technology
Back-to-back HVDC converter
Rating
660 MW
Voltage
345 kV
In service
2013
Published by
NYISO and PJM
Open on the map

What it is carrying

Each operator's own reading, turned into a direction. Where both markets publish the tie, the two should agree.

As NYISO reports it
250 MW · PJM → NYISO

limit this way 660 MW · 410 MW left to schedule · as of Sep 26, 2:20 PM EDT

As PJM reports it
250 MW · PJM → NYISO

as of Sep 26, 1:55 PM EDT

Price across the seamReal-time · EDT
Reading prices…

Last 30 days

Hourly flow, signed so that up is power leaving the market.

As NYISO reports it
-250MW
53-330-713Aug 27, 2 PMSep 26, 2 PM

Above zero: NYISO → PJM. Below: the reverse.

Hardware

Its terminals. US terminals are placed on the substation HIFLD's national dataset names for them.

Converter
Bergen converter, NJ

40.8321, -74.0126 · 345 kV

Substation
West 49th Street, NY

40.7660, -73.9959 · 345 kV

Related interties

  • Champlain Hudson Power Express
    NYISO ↔ Hydro-Québec
  • Hydro-Québec–New York
    NYISO ↔ Hydro-Québec
  • Cedars Rapids
    NYISO ↔ Hydro-Québec
  • Cross Sound Cable
    NYISO ↔ New England
  • Norwalk–Northport 1385
    NYISO ↔ New England
  • Neptune
    NYISO ↔ PJM
  • Linden VFT
    NYISO ↔ PJM
  • PJM–New York AC interface
    NYISO ↔ PJM
Usual direction
PJM → NYISO in 89% of hours

0% out, 89% in, 11% idle across 721 hours

Average
501 MW · PJM → NYISO
When busy
660 MW

95th percentile of hourly flow either way

Peak NYISO → PJM
0 MW
Peak PJM → NYISO
660 MW
Direction changes
0
Hours near its rating
443 of 721

At 95% or more of 660 MW

The average day
0:006:0012:0018:0023:00
Mean flow by the market's local hour. Up: NYISO → PJM. Down: PJM → NYISO.