A Fully Solar-Powered Car May Be Hitting the Road by 2019

Chelsea Gohd for Futurism:  Lightyear One, a car whose ability to use solar power has been thought of as an impossible feat, just won a Climate Change Innovator Award. Designed by the Dutch startup Lightyear, the “car that charges itself” can supposedly drive for months without charging and has a 400 – 800 km range. But is a solar-powered car feasible?

For years, the concept of “solar-powered cars” has loomed over the electric car industry as a hopeful, possible future. But there are many who argue that this concept is not only impractical, it is basically impossible. For instance, a solar roof that was designed to power the Toyota Prius was found to only be useful in combination with a traditional battery charging system and it only added an additional 4 miles to the range — not that impressive. One engineer even calculated the power capacity of a car with a solar roof under the optimal amount of solar radiation, and the results are underwhelming. Engineers measure the rate at which an engine’s work is done in “horsepower” (hp): the car equipped with a solar roof had a horsepower rate of 6.4. For comparison, engineer Tom Lombardo said, “my riding lawnmower has an 18 hp engine.”  Full Article:

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