Paper which introduces an method developed by the research group Duurzame Projectontwikkeling of the SIA-RAAK project Energieke Restauratie. Besides an discription of the method, it also describes the application of the method for three (fictional) case study projects: Dairy Factory Dongeradelen (Lioessens), Strawboard Factory Free (Oude Pekela) and Der Aa church (Groningen).