"I doubt you're going to be rolling around with a solar-powered weed-eater to do your yardwork" They already have electric weed-eaters. I can easily imagine th

"I doubt you're going to be rolling around with a solar-powered weed-eater to do your yardwork" They already have electric weed-eaters. I can easily imagine those engines having a battery, complete with a solar powered charger, likely with an option for direct power. If your house power is solar as well, it still works. I don't think this stuff is hard to imagine. Large earth movers are a different beast, simply because of the heavy load. I predict these will be much further off. But so long as they have enough power, I don't see the issue with them being electric at some point.