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.

This surcharge will affect electricity sales for 1.5 million homes and businesses across Michigan, Minnesota and New York,

"The reliable, uninterrupted flow of economic power across the Canadian interties is critical to protect the health, safety and welfare of New York citizens ... "