Lot’s of folks are wondering if it is time to leave the grid.

Home energy storage has gained a lot of attention recently, and many people think making homes independent from the grid by using batteries to store electricity from rooftop solar is an idea whose time has finally come.

So will home energy storage soon be like rooftop solar in that it will pay for itself and be used in homes across the nation, or is it like a porn star?  Always coming, but probably not something you would actually want in your house.

To gauge its prospects I decided to investigate whether or not a household that is well-suited for energy storage could save money right now by installing an off grid solar system.  And entirely through good fortune and not at all because I am too lazy to bother doing real research, my parents just happen to fit into this category.  If they can’t save money by going off grid then probably no one can. [Read more…]