Tesla owners don't have to pay for gas, but they do have to pay to charge their cars -- so do they save money overall?

Don't rush when choosing a home battery to store your solar power: use these tips to make sure you get what you need.

EnergySage even rated it the best battery on the market, though its higher price means it won't be for everyone. There's also the FranklinWH aPower 2, which has proved to be a favorite pick.