The solar hot water project has carried out long-term active research and practice, including solar thermal equipment manufacturers, local governments, research institutes, design institutes and development companies have done a lot of detailed research on different levels, different regions and different buildings. , development, design, construction work. With the implementation of emission reduction targets, many countries have continuously introduced the policy of applying solar energy, which has greatly promoted the application of urban solar energy, so the solar water heater project has gradually become the mainstream of the industry development.