We’ll top up from the grid – but only when it’s cheapest and greenest.
If your array is not big enough to charge your car entirely, or if it's not sunny enough that day, or if the session runs on through the night, the session will use part solar energy and part grid energy.
Our app will display the blended cost of the session, assuming £0/€0/$0 cost for the energy from the panels, and the normal tariff price for the energy imported from the grid.
It should never be more expensive for you to solar smart charge than to smart charge from the grid. If you detect any issues with this during our beta phase, please let us know!