In accordance with the idea of “realizing enterprise scale, product standardization, technology localization, and market standardization, and pushing the new energy and renewable energy industry to a new level”, the State Economic and Trade Commission recently launched the new energy and renewable energy industry development “ten In the Five-Year Plan, it is proposed that “solar water heaters will strive to increase at an average annual rate of about 15% in the next 15 years, reaching 64 million square meters and 232 million square meters by 2005 and 2015, respectively, and the annual production capacity will reach 11 million square meters and 21 million square meters".