moray

In the early 1900's, Dr. T. Henry Moray of Salt Lake City produced his first device to tap energy from the metafrequency oscillations of empty space itself. Eventually Moray was able to produce a free energy device weighing sixty pounds and producing 50,000 watts of electricity for several hours. Ironically, although he demonstrated his device repeatedly to scientists and engineers, Moray was unable to obtain funding to develop the device further into a useable power station that would furnish electrical power on a mass scale.

http://en.wikipedia.org/wiki/Radiant_energy
"...Radiant energy is energy that is transported by waves. This includes energy transception in the form of waves through space or various media. Radiant energy is also energy transfered through electromagnetic waves. Solar Energy is a type of radiant energy. Radiant energy may be calculated by integrating radiant power with respect to time. Radiant energy is usually expressed in joules...."

 http://www.whatmatters.nu/ferw.html
Nikola Tesla worked out of the conviction that, in his own words, the “new power for the driving of the world's machinery will be derived from the energy that operates the universe, the cosmic energy, whose central source for the earth is the sun and which is everywhere present in unlimited quantities.”