The Conservative leader in Ontario is on record as planning to remove all subsidies to alternative energy.
Yes, but there is no mention of EV rebates or other energy conservation programs. The subsidies for renewables in Ontario have been in the form of a premium paid for the power they generate, and are not really "subsidies" in the traditional sense, although it amounts to the same thing. Personally, I think removing the subsidy is a good thing. The way it has been implemented in Ontario has been a mess and has cause other unintended consequences. For example, wind generators are paid a fixed premium price for the power they produce, and the Independent Electricity System Operator has been ordered to purchase their power
whether the system requires it or not. Wind often blows at night or in other off peak periods and what this means is that the IESO has to curtail other less expensive forms of generation
or it creates a surplus which has to be exported. (Electricity at this scale cannot be stored... it has to be used as produced). When there's a surplus, it drives the spot market price down, then everyone complains that we are "selling our electricity at a loss" to New York and Michigan. It isn't really a "loss", it's just that the surplus has driven the cost down, and it has to go somewhere, so our neighbors are happy to pick it up at a low rate. All this at the same time that we are paying the wind generators a premium for their power. It does drive prices in Ontario higher and there are better ways to implement clean and/or renewable power.