Canada won't develop a useful EV brand. We've failed multiple times to start car companies because we live next door to the USA with its massive car firms, and Tesla has just made a tiny Canadian brand even less likely to succeed. Cheap EVs depend on global supply chains, just like cheap wind and solar do. Going it alone is a prescription for failure.

Regarding hydrogen in gas lines:

https://cleantechnica.com/2020/12/14/can-hydrogen-replace-natural-gas-looking-at-the-numbers/

It's a broken idea being promoted by fossil fuel companies of various sorts to prevent complete loss of market for fossil fuels and gas pipelines, not a rational response to climate change or the required low carbon economy.