Comment by lawrenceduk

We usually drive to work. That means that when the sun’s shining, the car isn’t home.

Conversely, if we didn’t drive to work, we probably wouldn’t have a car.

On the other hand, we have a big solar array at work so if we had on-site parking (we don’t) we could drive our power home.

It’s probably impractical in reality though, the tax treatment would be chaos and we use the power we generate at work during the day on-site.