Hydro-Québec–New York
NYISO ↔ Hydro-Québec · Back-to-back HVDC converter
Hydro-Québec's Châteauguay back-to-back converter, joined to New York by a 765 kV line into NYPA's Massena substation. New York's main path to and from Québec in the north.
Operator readings
Compare each operator’s reading at its stated time. Scheduled transfers and metered physical flow measure different things.
- As NYISO reports it
- 0 MW · Idle
Current reading · 0 MW left to schedule · as of Nov 10, 6:50 PM EST
- As Hydro-Québec reports it
- No current reading
No current reading
Last 30 days
Hourly readings, signed so that up is power leaving the market. Each series identifies whether it measures flow or a transfer schedule.
Above zero: NYISO → Hydro-Québec. Below: the reverse.
- Usual direction
- NYISO → Hydro-Québec in 5% of hours
5% out, 0% in, 95% idle across 721 hours
- Average
- 37 MW · NYISO → Hydro-Québec
- When busy
- 0 MW
95th percentile of hourly flow either way
- Peak NYISO → Hydro-Québec
- 1,000 MW
- Peak Hydro-Québec → NYISO
- 0 MW
- Direction changes
- 0
Hardware
Its terminals, placed from named HIFLD substations or other cited geospatial sources where available.
- Converter
- Châteauguay converter, Québec
In Canada, outside HIFLD's coverage
- Substation
- Massena, NY
44.9192, -74.8338 · 765 kV
Sources and method
Readings come from NYISO and Hydro-Québec interface readings. Each value is shown with its operator and source time; direction is normalized from that operator’s sign convention toward or away from NYISO. A rating describes the equipment; an operator’s posted directional limit, when available, is a separate operating value. The map point identifies a sourced terminal or crossing where available, or a representative connection point; it does not trace the full route.