Billionaire Elon Musk thinks he can pave the way to a better energy future by turning the mattress-shaped batteries in Tesla’s electric car into upright pillars so they can be used to power homes, businesses and even utilities.

Billionaire Elon Musk thinks he can pave the way to a better energy future by turning the mattress-shaped batteries in Tesla’s electric car into upright pillars so they can be used to power homes, businesses and even utilities.