In a comment to a share holder, Woodford Equity wrote: "With regard to
Industrial Heat, we were, and have been, very aware of the scepticism
about this technology. We have undertaken a rigorous due diligence
process that has taken two and half years."
Due diligence has a well defined legal meaning, so if they did that they
must have seen E-Cats working. One would suppose also the crown jewel
of the 1 MW plant. They were satisfied enough to invest more than $10
million according to Darden in his interview with Fortune. This mean
Industrial heat has more than $20 million now.
This is strong evidence that the 1 MW plant works.