These results look marginal, as in, if you tweak the assumptions slightly you can get a net positive. I'm not saying they're wrong, but there are quite a few re

These results look marginal, as in, if you tweak the assumptions slightly you can get a net positive. I'm not saying they're wrong, but there are quite a few results in the green economy that look like this from the outside and it's hard to tell how things will turn out before you try them. To be clear: I think batteries are a much better choice than hydrogen for consumer applications at this point in time. It is unclear what will happen with Over the Road long haul trucking and airplanes.