If Tesla takes Superchargers off-the grid and only uses solar+battery, would that mean that Tesla owners are back to free supercharging? After all, neither Tesla nor owners are paying for Grid electricity. Tesla Superchargers will use solar power and batteries, says Musk It sounds reasonable to me that owners should pay for supercharger electricity when it is obtained from the grid. It's also reasonable that Tesla should stay connected to the grid in case of long snowfalls or any other factor that would limit solar production. Do you think solar+battery superchargers should be supercharger free??