generate solar energy
How expensive would it be to build a car that is powered strictly by solar energy?
How expensive would it be to build a car that is powered strictly by solar energy?
and also by the energy generated by its wheels turning while moving. Of course I understand that it would have to be able to store the solar and kinectic energy to be used later on demand..
I know this is possible, but I would like to know how much you think it would cost, and the reason for that is to find out how far away we might be from having a production car like this.
It isn’t a matter of expense, it’s a matter of physics – solar energy at noon on a bright clear day at middle lattitudes is only about 100 watts per square meter. One horsepower is 755 watts, and an average car has a top surface area of maybe 7.5 square meters, so there’s only about 750 watts or 1 horsepower available from the sun. 1 HP is nowhere near enough power to accelerate a 1-ton car at a reasonable rate, and top speed would be maybe 10 or 15 mph, if very skinny high-pressure tires were used. But it’s even worse than that – the best (and most expensive) solar panels available right now, like used in satellites and the ISS are only about 30% efficient. So your car is now down to 0.3HP.
Money is not the problem.
[REPOST]
Storing the energy in batteries, huh? Okay, then this car will need to be exposed to 25 hours of bright midday sunlight in order to have enough energy to supply 15 minutes of 30 horsepower.
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