Recent content by BoronSandal

Are you charging an electric car overnight?

Compare price to http://projectsolar.com (optional DIY install). They are the best I've found. And Tesla Solar has a low price guarantee so maybe there's something you can do there

Another thing I think would help with reducing utility bills is replacing our heating and cooling systems with a passive solar system using the sun to keep a mass of sand very hot like an oven (this is called a sand battery) then use this for heating, and also use it for cooling because an...

I'm also in San Diego and I've also been considering the same thing. Maybe we could work together on this. Here's what I've been thinking: - 5 kWh of battery should be enough to offset peak 4-9pm usage (battery cost is around $200 per kWh) and will have the fastest payback - the EV-TOU5 rate...