[pmuk]

If you have the space, you could install close to 20kW of solar PV for $20,000. On a sunny day this would help power a 22kW charging station, and even on a cloudy day you'd probably get around 2kW for trickle charging.

[nomel]

For me, and I think most that use their cars often, the vehicle is driving/away from the house during the day.