• Canaconda@lemmy.ca
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    7 hours ago

    This guy tested a $100 solar panel and windmill and found the solar panel was much, much better. https://youtu.be/iHulKsD35Hc

    This guy gets into the math behind the Tesup Atlas wind turbine. Basically the real output people are getting could be matched by 200-400watts of solar. https://youtu.be/6ixUmlN-cYc

    The 2 biggest problems with scaling down turbines.

    1. Hard 60% efficiency limit called the Betz Limit

    2. Wear and tear on smaller parts is the same as bigger parts but with lower output efficiency.

    I guess a 3rd is that the surface area to volume ratio is probably what makes large turbines practical in the first place.