ExtremeTech: Andrea Rossi's E-Cat — the device that purports to use cold fusion to generate massive amounts of cheap, green energy – has been verified by third-party researchers, according to a new 54-page report. The researchers observed a small E-Cat over 32 days, where it produced net energy of 1.5 megawatt-hours, or "far more than can be obtained from any known chemical sources in the small reactor volume." The researchers were also allowed to analyze the fuel before and after the 32-day run, noting that the isotopes in the spent fuel could only have been obtained by "nuclear reactions" — a conclusion that boggles the researchers: "… It is of course very hard to comprehend how these fusion processes can take place in the fuel compound at low energies."