It’s a bit more complex than that. Octopus do a deal where you can lease a car and get the energy for it for free provided you agree to have it plugged in > x h

It’s a bit more complex than that. Octopus do a deal where you can lease a car and get the energy for it for free provided you agree to have it plugged in > x hrs a month. My read on that is that the cost of balancing the grid is greater than the cost of generating power. So grid is expensive, but power is cheap.