Sweden is testing a semi-truck trailer covered in 100 square meters of solar panels::A Swedish manufacturer wants to harness green energy from a cargo trailer’s free real estate.

  • ElectricCattleman@lemmy.world
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    1 year ago

    Putting solar on moving vehicles makes no sense except for very specific use cases.

    Install those same panels on the ground and you can point them at a good angle for sunlight capture 24/7, don’t have to literally carry the weight of them everywhere, don’t have to worry about them getting dirty all the time from moving around winter roads, and are much easier to repair.

      • n0m4n@lemmy.world
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        1 year ago

        Solar ditches make more sense. Carrying solar panes add weight and air resistance. The trailer area is 416 ft which can hold ~33 panels if panel configurations are optimized for a trailer. Weight will be 3000 lbs, which cuts the tare payload by 6%. This is not enough electricity to run a semi with two drivers splitting driving responsibilities, running day and night, and in weather that does not have power for the cells.

        Trains are the most efficient system that we have. I wonder how the math would work for trains? I expect that it would be a net gain, but the added complexity of connecting and disconnecting for each car as the cars get switched in yards would be a nightmare. Once travelling, there is little braking and acceleration, which lowers the power demands.

        • bitwolf@lemmy.one
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          1 year ago

          Yes but sadly no one wants to talk about trains.

          It’s really killing the Utopian dreams of public transport

    • GiddyGap@lemm.ee
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      1 year ago

      Pretty sure these solar panels aren’t just your regular residential or commercial building panels. They are specially made for this purpose.