How Long Does a Battery Last?

It's going to depend on the type of battery that you're buying as far as how much money you're putting into it. Having to put that expense in upfront and then have to do it again when they wear down is unsustainable. The cost of solar doesn't increase linearly with the percent of the grid it's powering. In California for example a study's been done that shows it would cost 49 dollars per megawatt hour to power the first 50% of the grid with solar. But to get it to 100% it would drive the cost per megwatt hour up to $1,612. And we're talking about a relatively sunny state year round in a wealthy nation more