For the past 4 years, Andrea Rossi has been claiming to make large amounts of heat in his various "E-Cat" reactors, apparently inexplicable in terms of chemical reactions, and was even granted a patent for the device.
Prior claims of cold fusion have been strongly discredited, and many researchers are very skeptical of Rossi's claims. (Whether or not it is cold fusion, such claims fall under the umbrella of LENR: "Low Energy Nuclear Reactions").
However, with an $11M investment, "Industrial Heat LLC" (managed by investor Thomas Darden) is now running a 1-year test of this supposed technology, a claimed 1 Megawatt plant. They have not released any formal details of how it is proceeding.
By June 1st 2016, will a credible source report that Industrial Heat LLC has received at least $10M in additional investment, suggesting that at least some are convinced that the technology is real?