Development of a concept for energy optimization of existing Greek hotel buildings

Hotel buildings are unique compared to other public, commercial buildings due to their varying size as well as their facilities and operating schedules. Recent studies indicate that hotels are the second highest energy consuming category after hospitals. Even though they represent only 0.82% of the building stock, they reflect 28% of the total final energy use in the tertiary building sector of Greece. The reported average energy consumption for Greek hotels is 273kWh/m(2) annually. Purpose of this Master Thesis was to evaluate different energy optimization scenarios for an existing hotel building as a case study and calculate the potential energy savings using the Greek software TEE-KENAK. Three main subjects were investigated: the building envelope, the electromechanical systems and the application of renewable energy technologies. Based on the results from several simulations, it is concluded that it is possible to reach an average reduction of 60% in the annual primary energy consumption. (C) 2017 The Authors. Published by Elsevier B.V