Whenever the word “energy” is used in scientific circles it is understood that the energy in question is kinetic in its form, potential energy is simply “potential” for the generation of kinetic energy, in other words potential energy is a force that can cause something to move.
Radio frequencies are energy in the same way as light is energy and both energies have a motion or a frequency involved with them. If light can push a sail in space, then why could not a radio frequency do some pushing of its own?

I think that the cold fusion effect was a misinterpretation of energy storage, what probably happened in the process was that hydrogen gas was infused into the metal plates and that consisted of a storage of the energy that was put into the system, in other words the motion of gas ions was converted into potential for the motion of these ions in the reverse process.