Ruhr Energy Technology Co., Ltd. (RuhrTech), located in Zhejiang Overseas High-Level Talents Innovation Park, is an energy company founded by a team of Chinese scholars and German experts, with their more than 15 years experience in the R&D of solar cooling technology. Armed with key technologies that originated from Germany, RuhrTech focuses on the designing of solar-powered cooling systems for energy-saving buildings and the Engineering Procurement Construction contract (EPC contract). RuhrTech also conducts research and development of high-efficiency phase change materials, and provides service in the fields of green buildings, including the consultation and certification of green buildings, through working closely with some Chinese and German companies, research institutes an universities. RuhrTech aims to contribute its efforts to reduce energy consumption and achieve economic sustainability, with its devotion to the innovations of new green technologies related to the application of renewable energy, creation of energy-saving materials and designing of low-carbon buildings.