Following up on my comment on a standby generator: There are a lot of places where the generator needs to be able to run for a few days, in poor weather. Think

Following up on my comment on a standby generator: There are a lot of places where the generator needs to be able to run for a few days, in poor weather. Think of the Texas blackout, with users like hospitals and data centers. There's got to be a point where a fuel cell with a large tank of hydrogen is cheaper than a bigger battery. And, if you can hook in some kind of electrolysis thing, it could refill itself too.