Btw, on who stands to gain, hopefully you can see the way to get full benefit from free energy is to give it for free. This is a very old argument, which is not discussed much since something was forced by one JP Morgan, when he, as the sole funder, defunded Nikola Tesla's free energy project.
The banks obviously would prefer we never figure out that was not a good idea, because free energy means free money, and that will be the end of all utility of banks, when it happens.
So they would be inclined to fund any research that makes us believe a distractive lie that the sun isn't the only source of energy, and that the energy from the sun isn't really free. Of course geothermal or nuclear can never be for free, but they are always compared with the energy of the sun as if they are equal.
Likewise pretty much all financial industry, and definitely all utilities energy industry, and definitely the nuclear industry, all welcome any and all "news" that looks like it confirms their assertions, that nothing is ever for free, that we must all submit ourselves to a life of debt and obligation to work for them, yada yada.