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Asset classes
- Transmission Line80,968
- Power Plant32,429
- Substation / Converter7,614
- Oil & Gas Field7,055
- Coal / Uranium Mine5,382
- Pipeline4,951
- Cement Plant3,513
- Data Centre3,283
- Iron & Steel Plant1,293
- LNG Terminal1,198
- Grid Storage965
- Iron Ore Mine949
- Chemical Plant868
- Interconnector704
- Export Terminal519
- Refinery279
- Storage / Tank Farm38
- Oil / Commodity Contract19
- Hydrogen Project18
- Carbon Capture (CCS)16
Chokepoints
Interconnector
Canada - Ontario – Canada - Quebec interconnection
3rd-largest interconnector in Canada of 22 · top 16% worldwide (#112 of 704)
- Status
- operating
- Capacity
- 2,750 MW
- Length
- 500 km
- Voltage
- 230 kV
- Connects to
- Canada
- Reverse capacity
- 2,082 MW
- Geometry
- Schematic — node to node, not a surveyed route
Comparable interconnectors · Canada · 22 ranked
- #1Canada - Newfoundland – Canada - Quebec interconnection5.2 GW
- #2Canada - Manitoba – United States (US-MIDW-MISO) interconnection3.0 GW
- #3Canada - Ontario – Canada - Quebec interconnection2.8 GW
- #4Canada - Ontario – United States (US-NY-NYIS) interconnection2.4 GW
- #5Canada - British Colombia – United States (US-NW-BPAT) interconnection2.3 GW
Co-located infrastructure · within 25 km
- Canada - Atlantic – Canada - Quebec interconnection0 m · Interconnector · 1.2 GW
- Canada - Newfoundland – Canada - Quebec interconnection0 m · Interconnector · 5.2 GW
- Montréal1.2 km · Data Centre
- Poste Guy2.1 km · Substation / Converter
- Poste De Lorimier2.2 km · Substation / Converter
- Poste des Irlandais2.6 km · Substation / Converter
- Colo RIve-Sud3.6 km · Data Centre
- 735 kV line15 km · Transmission Line
- Ligne des Cantons de l'Est-Hertel15 km · Transmission Line
- HQ 703615 km · Transmission Line
- Vantage Data Centers Montreal I15 km · Data Centre
- Montreal East Refinery16 km · Refinery · 137 kb/d
On the interactive map
Assumed that the overall capacities are the higher winter limits given IESO system documentation. — No evidence for new planned projects with the exception of a 600 MW firm capacity trading agreement starting in 2026. This does not involve the construction of new tielines.
SOURCE: Global Transmission Database v0.1 (CC BY 4.0)