This study was conducted to energy saving in buildings, with TES system. The manufacturing method of Shape-Stabilized Phase Change Materials (SSPCMs) was developed as the advanced vacuum impregnation. The validation was conducted using Activated Carbon (AC), Expanded Graphite (EG) and Exfoliated graphite (xGnP) as supporting materials and n-octadecnae was used as Phase Change Materials (PCMs). Through various experiments, the feasibility when it applied to in building, and thermal performance of this novel manufacturing method have been confirmed. Also, through the energy simulation, only 1 mm thickness of SSPCMs was applied as wall, reduced building energy up to 255.44 kWh. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.