Solar stirling engine.
https://www.youtube.com/watch?v=bwazXoqULKA
Has anyone ever worked with it? I don't have anything specifically to try to feed with the energy, I just find the concept interesting, a form of clean energy generation that you can actually have in your backyard, also a nice toy to play with. I was thinking on making myself one in small scale to keep in the backyard and see what I can do with it.
It seems to be a bit noisy.