ANNEX I Definitions applicable for Annexes II to V

Definitions related to boiler space heaters, boiler combination heaters and cogeneration space heaters

(14) ‘electrical efficiency’ (η_el ) means the ratio of the electricity output and the total energy input of a cogeneration space heater, expressed in %, whereby the total energy input is expressed in terms of GCV and/or in terms of final energy multiplied by CC;