Two cool demand-side energy startups:

SolPad will offer a modular solar+storage solution for both homeowners and renters. Will be an especially big win for renters who cannot put panels on their house. From what I can tell, the only downside appears to be the fact that you have to designate which outlet the power goes to, instead of it just flowing to your entire house.

Ice Cub offers a combo A/C+thermal storage unit. The A/C can be run as a conventional air conditioner, or a tank can freeze ice and then run the A/C during times of high electricity price without using electricity. Projected to save customers who have time-varying rates up to $500/year, without much of a difference in install price.