Question

A car might have 2.5 mÂ² of area on the hood, roof, and trunk. Assume that solar insolation when overhead is 1000 W/mÂ², the solar panel efficiency is 20%, and that the capacity factor is 15% (that is, it produces energy equivalent to if the Sun were overhead 15% of the 24-hour day). 1. (2 pts) What is the peak power produced by these panels? Convert to horsepower and compare that to the maximum horsepower of your car. 2. (4 pts) An efficient electric vehicle gets ~4 miles/kWh. Calculate how many miles of range are added to the car battery per day (assuming it's not parked under a tree, in a garage, on a north-facing slope, and it's sunny outside).

          A car might have 2.5 mÂ² of area on the hood, roof, and trunk. Assume that solar insolation when overhead is 1000 W/mÂ², the solar panel efficiency is 20%, and that the capacity factor is 15% (that is, it produces energy equivalent to if the Sun were overhead 15% of the 24-hour day).

1. (2 pts) What is the peak power produced by these panels? Convert to horsepower and compare that to the maximum horsepower of your car.

2. (4 pts) An efficient electric vehicle gets ~4 miles/kWh. Calculate how many miles of range are added to the car battery per day (assuming it's not parked under a tree, in a garage, on a north-facing slope, and it's sunny outside).

Added by Diana J.

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