an Entity references as follows:
European Commission definitions of energy efficiency, are given below: * Energy efficiency: a ratio between an output of performance, service, goods or energy, and an input of energy; * Energy efficiency improvement: an increase in energy end-use efficiency as a result of technological, behavioral and/or economic changes; * Energy savings : an amount of saved energy determined by measuring and/or estimating consumption before and after implementation of one or more energy efficiency improvement measures, whilst ensuring normalization for external conditions that affect energy consumption;