Thanks for the question.
If hydrogen become more favourable as a technology for medium and heavy-duty vehicles than batteries, then a huge scale-up is going to be required nationwide.
Right now, batteries are winning the battle on light-duty vehicles. Batteries are winning the battle on last-mile delivery vans. They're winning the battle on basically urban transit buses, as you saw with Ottawa's announcement yesterday, and the TTC.
Hydrogen is a kind of long-term transport fuel. It's really probably for semi, class eight-type trucks—and that's probably it right now.
Looking at the U.S. and what the Biden administration is looking at doing to scale up U.S. electric charging networks, I just don't know that it's possible for Canada to do the same with hydrogen, other than for the major Trans-Canada highways at this point. A lot of work needs to be done.