nfitz
Superstar
Notwithstanding some technical details though - I believe Quebec can shut down flow to the USA, very, very quickly. Hours not weeks or months.It's not isolated, but it is not integrated. Quebec power is not electrically synchronized with any other jurisdiction. Exports to the US (I don't know if or how much they import) are through either High Voltage Direct Current which is then changed to alternating current ('inverted') at the point of interconnect, or by Alternating Current which must be connected to the customer (US or Canadian) via 'intertie' equipment.
Looking at Stats Canada up until 2020, other provinces are higher than I thought. BC has increased significantly - though that was during Covid.
I can't find a more recent graph, but the latest raw data puts exports down a lot - only 0.4 million MW-hrs in November 2024. Maybe not so much of a weapon after all::
The Daily — Energy statistics, November 2024
Primary energy production increased 2.1% in November, with five of the six subsectors posting gains. Secondary energy production rose 5.4%, with most of the increase coming from the refined petroleum products subsector (+6.7%).