I have been reading through many forums over the past few years an find that there is allways this quest for the "holy grail" of over unity. There is very little information of practical application of the inventions in alternative energy. Solar seams to have the most info, followed by wind power. I would like to know if anyone is using an alternative source to heat or to power their home.(something other than wind or solar) Also there is alot of talk around power/energy outputs but never a comparision to an application that they could replace. ie. if you were to replace a traditional furnace with a friction heater as a heat source, what would the complete cost comparisons. Something that the average joe can understand and maybe want to apply. It seams to me that if alternatives are to become the mainstream then practical application should be the focus. I'm all for finding the "grail" but in the mean time wouldn't it be nice to put some of these ideas to use?