It isn't, and that's a challenge, which is why hydrogen fuel cells make so much more sense. Unfortunately, there are very few battery manufacturers right now, but that footprint will grow over time. We will see more and more batteries being developed here in North America.
Until then, you're going to find that the lithium, the cobalt and the zinc—all of the materials that go into those batteries—are coming from all over the world, and I would not say that they are coming to us in an ecologically friendly manner. That is an area that has incredible opportunity for improvement, but at the same time, there are limited resources in anything that we produce, other than hydrogen.
The battery size in hydrogen vehicles isn't a whole lot larger than what you're going to find in your car. Because hydrogen is flowing over a membrane and creating electricity while you're on the move, it's constantly charging the battery that's being used to run the engine. It makes a lot of sense from a number of aspects. One, obviously, is that less battery means less mining of minerals across different areas where we have less control over the way those products are being mined—