COP=6 is quite conservative, and based on problem of instability of the "self-sustain" mode of e-cat, feared by Rossi in November...
Defkalion says that COP is not a good way to analyze performance. there is a cost to start the reactor, to regulate a little, but COP can be great if power is stable. huge COP seems logic if you understand that Ni+H reactor simply are critical reactors that produce heat when a good temperature, not to hot, not to cool. with good regulator, it can use it's own heat to maintain the reaction. not so different from a nuclear fission critic reactor. like a car engine or a nuclear reactor it need energy to start or restart if stalled. COP=6 looks more like the minimum guaranteed. just better than heat pump, without the complexity. it looks logic if the reactor is subcritical (like some nuke research have proposed with thorium and *spallation* ) 2012/1/4 Energy Liberator <[email protected]> > Where did you get a COP of 50 from? I thought it was 6. Rossi said in his > interview that the running cost would be about 1/6th of a current > conventional boiler running cost.

