How many solar panels to charge a Tesla?

If a Tesla last for 300.000km and have an average consumption of 0,2kWh/km, you will need 60.000kWh in total. Let us also assume you keep the car for 25 years which is also how long most solar panels is expected to last.

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In sunny California (capacity factor of 25%) you will need 4 solar panels a 270Watt to produce 60.000kWh over the solar panels 25 year life span! The catch is off course that you will be limited to 12.000km a year and a maximum of 50km a day! Great if you like to park the car in the garage during day, and enjoy a joyride in the evening.