It's a really good question. I wish I had an answer for you.
I think it's going to depend on the ability of the industry, like Ballard on the fuel cell side or the engine side, to drive the cost, and I think for that we are on the right track. We have been reducing a lot of costs for the technology in the past five years. Accelerating now, we are in really aggressive cost reduction, so we should be able, by the end of the decade globally, to be at parity with diesel trucks. On the fuel cell side, I think we're making really good progress.
I think, though, the challenge would be the deployment of the hydrogen infrastructure. If we want to be able to have a significant market share of trucks operating with hydrogen, we need to bring that heavy-duty station infrastructure across Canada.
Initially we can start with trucks operating as a fleet base—home and return, or operating between two points—to minimize the requirement in terms of hydrogen infrastructure by focusing on those fleets of vehicles. We fully believe that by the second part of this decade, we can start to see a significant part of those vehicles being fuelled by hydrogen.