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To: Signalman

Good video which goes over the math. The summary: the car doesn’t have enough surface area even in the sunny Australias Outback to charge itself.


3 posted on 02/26/2026 9:57:22 AM PST by KarlInOhio (Dept. of Education should teach about Nietzsche: DOGE didn't kill it and now it's stronger than ever)
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To: KarlInOhio

it would depend on how far you have to drive to work it seems. If you only drive a couple of miles and the car sits outside all day long in the parking lot not being used. It would be enough.


4 posted on 02/26/2026 10:08:47 AM PST by TexasFreeper2009
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To: KarlInOhio
you can figure that out easily by yourself. I pulled this info from Google- average watts of solar energy per sq meter 340 at earth's surface. Multiply 340 watts *24 hours = 8160 watt hours Multiply by 20% efficiency of average modern solar cell = 1632 or 1.6 KWH per day per sq meter (about 10.76 sq feet)EVs get 2-3 miles per KWH so if you have a solar array the size of a standard sheet of plywood on your car you get about 4.75 KWH out of it per day so you get about 11-12 miles per day

EVs sucked when they were first introduced in the 1890s and still suck today. It's just that people have a lot less sense today or there wouldn't be so many morons buying them.

10 posted on 02/26/2026 10:38:06 AM PST by from occupied ga (Your government is your most dangerous enemy - EVs a solution for which there is no prrobkem)
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To: KarlInOhio

Needs more surface area....so have fold out panels that also shade the interior of the car so it’s not so hot when you get in.

Where there is a will some engineer will find a way.

https://www.reddit.com/r/teslamotors/comments/195xc81/tesla_owner_built_a_2kw4kw_solar_panel_car_roof/

https://www.reddit.com/r/TeslaLounge/comments/1gs3w77/my_tesla_with_an_expanding_solar_roof_generates/

Course you could buy the commercial version of it as well.

https://www.core77.com/posts/133240/GoSuns-EV-Solar-Charger-Unfolds-From-Your-Cars-Roof#

Tandem cells are busting the upper limits for conversion rates 43% is in reach.

https://interestingengineering.com/energy/china-jinkosolar-perovskite-solar-cell-efficiency


32 posted on 02/28/2026 1:42:14 AM PST by GenXPolymath
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