Ontario’s leader said he will add a 25% export tax on electricity sent to New York and other states in retaliation for Trump’s tariffs. Ontario provides 2,500 of the 4,600 megawatts of capacity that New York draws upon from Canada, the NYISO reports.

The move in response to President Donald Trump's tariffs on Canadian goods could raise costs for 1.5 million customers in three border states.

Despite Trump’s claim that the U.S doesn’t need Canada, nearly a quarter of the oil America consumes per day comes from Canada. About 60% of U.S. crude oil imports are from Canada, and 85% of U.S. electricity imports as well.