After watching his videos every day for months now I am still not sure where on the "technical genius" to "free energy advocate" spectrum I should place him.
I mean most of his builds are technically correct (e.g. most of his generators produce a voltage), but he often glosses over details that in practice make the idea unfeasible (e.g. a voltage does not help you if the generator can not provide enough current).
Other times he is just wrong ... just because whales and "tree-spinning-things" have similar "wings" does not mean that you can blow up the same shape to a wind turbine size. (The reason behind that is that the smaller you get the more viscous air becomes (relatively) ... flies and other small insects literally swim through the air because of that. Imo that could be an explanation why the tree-spinny-things have a similar shape, they are just small enough that they "swim", too.)