Gently press the switch, the river will flow into the "interior", the room becomes warm in winter and cool in summer. Learned from the 2006 May 30 meeting of the "city's construction of a new energy source heat pump technology Symposium", the use of water source heat pump technology "plumbing air-conditioned rooms" will start building this year in Chongqing, next year is expected to stay public, air-conditioning costs Will save 25%. By 2020, about 15 percent of the city's buildings would use the word "water air-conditioning." The preferred surface water as new energy Xu Yongguang, director of the city's building technology development center revealed that the preferred new energy development in Chongqing is not groundwater, solar energy, wind energy, but surface water, mainly the use of water development Liangjiang water source heat pump technology for the city's construction safety On the "water air conditioning." Water source heat pump technology is the use of the river water temperature is relatively constant (22 ℃) features, through heat pump treatment, the introduction of indoor winter heat summer cooling. The two rivers plus more than 10 secondary rivers, water energy is also the most abundant Chongqing is also the most development of new energy sources. Cool air-conditioning costs savings 1/4 Currently, Chongqing City, 50% energy efficiency standards for a district only Beibei, 95% of the buildings are high-energy buildings. Chongqing Municipality has been listed as two projects of Phase II Project of New Energy Development Demonstration City, Nan'an District Hotel and Science and Technology Entrepreneurship Development Center. This year, it will open 150,000 square meters of "water-air-conditioned" buildings . Chongqing will be divided into demonstration, industrialization, large-scale promotion of three stages of development of "water air conditioning." Construction using heat pump technology will add some cost to normal buildings . Switch to "water air conditioning", the first is to improve the room comfort, making the room warm in winter and cool in summer. In addition, compared with the use of ordinary air-conditioning, air-conditioning costs savings of 1/4, citizens save more money.