What's Solar power energy needed for an EV yearly driving?

What's Solar power energy needed for an EV yearly driving?

 The per kWh of energy coming from EV batteries is vary according to EV brand, the type of road and the season. We take Nissan Leaf as expamle, and ignore complex environmental factors.

For example, Nissan LEAF electric car with a 30kWh battery – official range of 172 km. it is possible to travel about 6.5 km with 1 kWh of energy coming from the batteries, which is therefore 150Wh per kilometer. So, this Nissan Leaf electric car to travel, estimated 20,000km per year, with solar energy, it will be necessary need about 3,000 kWh of electricity. To produce such an amount of energy, a solar system with a total power of about 2.5 kW (10 solar panels of 250W) is required.