The total heat generation is mainly determined by the D supply.
Because FPE use the Pd Rod with very large volume, it takes a long time to introduce in Pd bulk, and it takes very long time to trigger Cold Fusion.
Oppositely CP method is by far better regarding D supply because they use metal-D stacks with very high D concentration.
However it need to replace often and the efficiency is very low because Cold Fusion need to control the reaction surface potential control.
Lately they and I proposed to use the very thin metal film, membrane to supply D from the backside, but this method is very difficult to design the tool and metal plate
due to the fragility of very thin metal film.
So I proposed the very thick Ni-D layer on the ceramics(D diffusion barrier) partially open contact to metal plate to control the Ni potential.
The most important design is to use the counter metal plate and Ni plate with flat parallel plates for the easy control of surface potential.
This is based on Cold Fusion mechanism.
and it is also necessary to change the metal plate quickly and easily.
I need the experimental data on the surface potential of metal and heat generation for the patent,
so I will license the patent if you offer the data.