An energy technology is a technology that describes how to combine energy transformation units, energy transformations, energy carriers and energy in a specific way.
An energy storage technology is an energy technology that describes how to combine energy storage objects and energy carriers in charging and decharging processes for the purpose of temporarily storing energy.
A heat generation technology is an energy technology that describes how to combine heat generating units, heat generation processes, energy carriers and energy in a specific way.
A power generation technology is an energy technology that describes how to combine power generating units and energy carriers in a power generation process to generate electrical energy.