More commonly called free energy or fuelless electric generators, they put out more power than goes into them from any previously recognized source. No batteries, no fuel tank and no link with a wall socket. Instead, they tap an invisible source of power. Such unorthodox clean energy-producing devices exist today and were built as far back as the l9th century. This source of abundant power is known by physicists as the zero-point quantum fluctuations of vacuum space.
Inventors give various names to their space-energy converters.
In the 1930s a scientist in Utah, T. Henry Moray, invented a Radiant Energy device powered from the sea of energy in which the earth floats. This sea that surrounds us, Moray said, is packed with rays which constantly pierce the earth from all directions, perhaps from countless galaxies. Converting this cosmic background radiation into a strange cold form of electricity, his device lit incandescent bulbs, heated a flat iron and ran a motor. His sons say he was thanked with bullets and other harassments, but that's another story. A spiritual commune in Switzerland had a tabletop free energy device running in greenhouses for years, but members feared that outsiders would turn the technology into weaponry.