Ok I remember watching a video when I was twelve of this guy who used basically a refrigerator in reverse to create electrical energy from heat energy in outside air to power a house. Freon was run through black heat collecting panels, then through a compressor to make it hot. The heat energy was extracted efficiently because of the temperature difference and then the freon was decompressed therefore cooling it and then it was run through the panels and the cycle was repeated. The initial energy used to run the compressor was less then the electrical energy being produced from the heat. Would anyone be able to discredit this idea? What technology is missing to make this work? Can you point me to the equations that are involed in making this system whether or not the net electrical output is negative? Anyone out there addicted to the thermodynamics enough to answer this one? :) Quick note: I've seen threads about this before and the discussion quickly went to "perpetual motion," and "free energy." This is nothing of the sort in theory. Obviously the energy is simply the conversion of heat energy from the air being converted to electrical energy. The energy is by no means "free". Hope to hear from you soon.