Explanation of what observations? Show me the observations he has made or measured.
The original observation was from Martin Fleischmann and Stanley Pons.
The story goes they had a simple elector-chemical experiment, 1 liter of deuterium,
with a palladium anode, the current source was supposedly a 9 volt battery.
The experiment had been on most of the day, and they were not seeing what they expected.
Closing up the lab, they switched off the battery, within a few seconds the anode started glowing white hot,
and a column vaporized deuterium hit the ceiling, almost completely boiling away the liter of deuterium.
Both knew a 9 volt battery did not contain the energy to boil almost a liter deuterium into steam.
The problem was the experiment could not be repeated under more controlled conditions.
Strange heating was observed, but when placed in a closed system for a calorimetry experiment,
no additional heat was observed.
Ponds and Fleischmann ether did not describe the complete experiment, or more was going on.
Mills tried to describe it as a non fusion event, but a quantum physics event, where hydrogen dropped another
326 eV below what we call ground state.
This newly described state of hydrogen, he called the Hydrino,
and was able to make new molecules with them.
The first company name Blacklight Power, was from the UV photon observed when the Hydrino was created.
His company keeps getting funding, and seems (always) to be close to a breakthrough.