Batteries in the grid are the key to enabling renewables to accommodate fluctuating demand -plus- it creates an endless market for used car batteries once their

Batteries in the grid are the key to enabling renewables to accommodate fluctuating demand -plus- it creates an endless market for used car batteries once their storage capacity drops too far to efficiently drive around on top of, recovering a substantial part of the cost, thereby reducing the TCO for Tesla owners. Big, smart long-game play that, for me, explains the stock price.