Rossi claims to have one-MW thermal unit available. However it requires 200kw input to keep it running.
At 30% efficiency that means he can get 300 kw out max with 200 kw in. That gives him an output of 100kw which is a revenue of about $2 dollars an hour. If he runs 24/7 he will net less than $100,000 per year (I am being generous). Invest in Treasuries and you get over $400,000 per year. Anyone with any sense would put their money in treasuries.
No doubt Industrial Heat, NASA, and others working on LENR technology and devices are intently focused on improving energy yields. Of course, NASA's perspective is likely informed by its institutional understanding of the scale and pace of technological progress achieved after the first flights of the Wright brothers Flyer and Robert Goddard's rockets.