Why no one wants to deal with nuclear fusion which is in my opinion the only real free energy source, our Sun does it 24/7, there's nothing impossible about nuclear fusion, the only difficulty is in making a machine which can simulate the same conditions and fields as the sun, the two big contenders that use magnetic fields are the tomahawk style and polywell/fusor type machines and then there are the laser types machines, the tomahawk is nearly impossible to succeed, the polywell won't be backed up to do a full scale model and no FEM simulation can model millions of particles which alter the voltage field of this fusor style machine, I am talking about boron 13 and alpha particle fusion which require high plasma temperature aka strong forces in order to be self sustaining - the tritium fusion which most countries are trying to achieve must be mined from the Moon, so that's a no no. The polywell won't succeed because they use ribs to simulate a spherical shell that pushes the ions together like the sun's gravity and the voids between the ribs are where all the particles escape from, the tomahawk is actually creating and driving two beams of particles against each other like in a car crash which is also impossible to make since the void between each particle is way too large and the particles decelerate before they can hit a target. The laser type machines shoot a solid target with high energy laser which knocks off the ion particle and hit another target but then there are isssues with having to replenish the solid target and the limit of laser power.