This is an interesting solution to the the upcoming problem of what to do with used electric auto batteries.
"Imagine a future in which old electric-car batteries are deployed in neighborhoods as energy-storage systems that guard against power outages, while paving the way for wind and solar power—and more electric cars. The idea has moved one step closer with the demonstration of a boxy unit of used Chevy Volt batteries capable of providing enough electricity to power three to five average American homes for up to two hours.
“Heaven goes by favor. If it went by merit, you would stay out and your dog would go in.”
― Mark Twain