Quote Originally Posted by Qaridarium View Post
your example of free energy is not free its so called a heat pump its the same if you use a water pump to pump water into the eath to get the earth heat out.
the power output can be up to factor 4.
but its still not free energy.

your example do the same but i think they don't hit the factor 2,8 but you need more than 2,8 to compensate the energy lost in making electric energy.
I'm aware that it is a heat pump and I'm not claiming it is a "something for nothing" or perpetual motion or even a closed system of any kind. But that doesn't matter.

It's just that after the initial investment (and of course maintenance costs) you can extract energy cheaply and cleanly from the ambient environment. Nothing is REALLY free as such...