There are insightful comments by Jack Cole and Alan Goldberg on the LENR forum -- which once again presents us with the emerging picture of a nickel-hydrogen technology which is limited to COP of around 1.2.
In effect, Parkhomov is tacitly admitting that he can do no better than this low level; nor has anyone else, including Rossi, been able to convince real scientists of higher levels. Lugano probably shows this level of gain. https://www.lenr-forum.com/forum/index.php/Thread/4705-Parkhomov-New-Long-Term-Test-Paper-Published/ In summary, there is no scientifically valid repeatable evidence at the 100 watt level or above, of COP which is greater than 1.2; and even then, that low level could be in the noise given the circumstances... but... at the same time, let's not forget that COP=1.2 would be great, fabulous, fantastic, paradigm-shifting and world-changing ... if it were actually rock solid at that level and fully understood and repeatable. Certainly there is tons of evidence for high COP at the subwatt level going back 26 years, but does anyone really care now that megawatts are being talked about? Thus our challenge, moving forward into a post-Rossigate era is relatively simple: How can we fully explain and validate slight thermal gain... and moreover, once we understand the mechanics, can real low gain be made useful in an industrial sense? As a practical matter, achieving self-power is only the acceptable proof. We have opined many times here that slight but real thermal gain, when combined with well-engineered (ultra-efficient) feedback, could/should allow any arbitrary level of net gain to be derived (if the gain is thermally triggered). That is one way to self-power. Correspondingly, if the high COP at the subwatt level is real and indicates what can best be described as QM "reverse economy of scale" (which is likely) then we must show that many small cells can be arranged in an array to push thermal output to say the 100 watt level (which is a useful level that allows self-power via direct conversion of heat to electricity). Actually, the reality of these generalizations is worth re-investigating. Can anyone either take a high COP subwatt design and build 1000 units to show 100 watts gain at COP=5 (as an example) or alternatively can anyone actually demonstrate a feedback series of 100 larger cells, each with output of COP=1.2 which give a much higher net COP (as Rossi failed to do)? In summary - this is where Rossigate has left us: the realization that there could be real thermal gain outside of known physics in nickel hydrogen systems, contrasted with the evidence that every past attempt to do anything with that small level of gain has failed to convince any true scientist that the purported gain is more than noise.
