An interesting read.
very interesting ! engine = heat... heat = better electrolysis... but heat = water steam... hmmmmm...maybe finding a true balance between this is the keyHigh-temperature electrolysis (also HTE or steam electrolysis) is a method currently being investigated for water electrolysis with a heat engine. High temperature electrolysis is more efficient than traditional room-temperature electrolysis because some of the energy is supplied as heat, which is cheaper than electricity, and because the electrolysis reaction is more efficient at higher temperatures.