California's electric grid, with its massive solar production and booming battery installations, is already on the cutting edge of the US's energy transition. And it's likely to stay there, as the state will require that all passenger vehicles be electric by 2035. Obviously, that will require a grid that's able to send a lot more electrons down its wiring and a likely shift in the time of day that demand peaks. Is the grid ready? And if not, how much will it cost to get it there? Two researchers...