Framk, the hydrino transition radiation is in the low nanometer range, to which everything is opaque and be seen only with vacuum ultraviolet spectroscopy. That region is also called 'soft X-rays'. That fact causes difficulty in extracting the energy; you can just let the reactor get hot - but that is inefficient. The elegance of CIHT technology is charge separation, so the device looks to the outside world like a battery. The efficiency of MHD conversion is theoretically very high.
Pay careful attention to Mills' language. The *peak* power output of the SF-CIHT reaction is very, very high. The proposed device fires pulses at high speed, but the average power output will depend on design factors. Mike Carrell