Trenta, Helion`s 6th fusion prototype. Helion Helion Energy has an agreement with Microsoft to supply 50 MW of fusion power by 2028. US-based fusion energy company Helion has received the regulatory clearances to build the world’s first fusion energy power plant. The company has received a Radioactive Materials License (RML) and a Radioactive Air Emissions License (RAEL) from the Washington Department of Health (DOH), clearing the way to begin construction of the generator building at the power