Here's a pretty obvious idea that's been a long time coming: solar-powered air conditioners. I mean, your A/C sucks up more juice than pretty much any other appliance, and they're sticking out there in the sun all day long — why not get at least some of the energy they consume from the sun they're cooling us off from? It's the circle of life, baby.

A company called SolCool will start delivering super-efficient air conditioners that can run off solar panels, with the extra benefit of also having a battery that can store power so you don't melt during a blackout. It's about time, guys. We need to get this technology on all A/C units from here on out, ya hear me? — Adam Frucci

SolCool, via CNET