Solar water heaters school Wenzhou hotel project Energy is the material basis of human social existence and development. Over the past 200 years, based on coal, oil, natural gas and other fossil fuels, based on the energy system to vigorously promote the development of human society. However, people living in the material life and margin continues to improve, but also increasingly came to realize the serious consequences of large-scale use of fossil fuels brings; resources are depleted; environmental degradation, but also induce a lot of conflicts and disputes. Thus, human beings must find a new, clean, safe, reliable and sustainable energy systems. Since people turn natural resources, such as solar, wind, hydro and other natural resources have emerged. Solar water heaters school Wenzhou hotel project from the energy consumption structure, China is the world's largest consumer of coal, coal consumption accounts for about 67% of energy consumption, which is particularly serious environmental pollution in China, an important factor in ecological deterioration increased year by year, especially in recent years, the media has reported, "sandstorms, haze" related to China's energy consumption habits has a close relationship. Therefore, the development of new energy and renewable energy has become a major strategic goal of any development in the 21st century China and construction.