I probably have one comment and one comment only, and it goes as follow.
"Is an open system overunity ? .. T.Bearden; No, all human creations will wear down, its built into the system. Same goes with energy conversion. 100 units put in can never be 100 units out, some of the energy is lost to heat. But you can have a coefficient higher than 1 or the 100 units. You can have a 100 unit in and 500 unit outs like with a refrigerator or windmill. What people are confused about with more energy out than the operator put in is the COP vs operational efficiency. A windmill might be 75-80 % efficient, so we lose energy, but nature will aid and put in 3-4 or even higher amounts of energy and that is COP higher than one. That is all it is."
I still remember that, 7 years later
So while reading this tread, I noticed that all the debates surround operational efficiency but non (to my understanding) have mentioned or looked at COP. Maybe it does not matter, maybe it does, I don't know. But I felt that the info from T.Bearden was worth posting. Maybe it will contribute or maybe not.
Regards.
Oneminde