I do not know about Ontario, but IIRC, most electricity imported from Quebec is hydro.
This will potentially (commodity market participant actions can be a challenge to predict) push up fossil gas prices in the US (which is also looking to lift an export ban from the Biden admin, which will further expose US fossil gas prices to the global market), forcing a faster transition to firmed renewables in the US [2] [3].
[1] https://www.offshore-energy.biz/shell-led-jv-preps-for-criti...
[2] https://cleantechnica.com/2025/03/02/in-solar-vs-gas-matchup...
[3] https://www.latitudemedia.com/news/engies-pulled-project-hig...
(commodity market participant)
Still wonder if Quebec will do the same. New England has been spending so much effort building a hotly contested green energy interconnect across Maine down to Massachusetts. New England Clean Energy Connect (NECEC). A bit shy of $2B projected for 1.2GW transmission line.