• spongebue@lemmy.world
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      11 months ago

      700 watts = .7 kW

      If you figure 10 hours of that (or longer but with less-perfect conditions) you can get 7kWh. I estimate about 3.5 miles per kWH on my Bolt. Not sure this car’s efficiency, but it gives us a ballpark number. That would give about 25 miles of driving. I understand that there are plenty of other factors that can go into this, but “fewer than 10 miles in perfect conditions” isn’t necessarily accurate either.

      • Cort@lemmy.world
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        11 months ago

        I would respectfully argue that 5 hours of peak output equivalent is more realistic as that’s what you’d get from static panels at the proper angle. But I didn’t figure in the claimed efficiency of the car.

        My car, Ford cmax energi, was tested with a 500 watt panel and that only yielded 5 miles a day in great conditions. More like 2-3 miles most days, and that’s at roughly 300wh/mi., similar to your bolt. Never made it to production with solar.

        • spongebue@lemmy.world
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          11 months ago

          But even that number you say is realistic, about half of what I just said, would still give a little more than the “less than 10 miles under perfect conditions” - I still don’t think it’s really that practical or worth the cost for a number of reasons, but I also like crunching numbers to know what it would look like before making that judgment.

          Curious, how did you get power from a solar panel into a high-voltage battery?

    • DoomBot5@lemmy.world
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      11 months ago

      That’s the other part, they’ve made the car as efficient as possible. They’re estimating 40 miles/perfect day because of that.