I assume this won't ever hit the market at the promised performance and cost. In the past decade or so we've been inundated with hundreds of stories, maybe thou

I assume this won't ever hit the market at the promised performance and cost. In the past decade or so we've been inundated with hundreds of stories, maybe thousands, about new solar breakthroughs and they never come to pass. The same is true of all the battery "breakthroughs". For some reason this stuff is never commercially viable. I wish I understood why.