It’s freezing cold in San Francisco right now (which is to say, 50 degrees). As such, I’ve been using my heater like a madman trying to stay warm. I know that’s going to hurt when I get my electricity bill at the end of the month, but I have no idea how much it’s going to hurt. A Y Combinator startup, Wattvision, launching in beta today, wants to solve that problem.

The idea is simple: Wattvision… → Read More