Beijing Institute of Solar Energy was founded in 1979, and with arduous discovery and efforts of research personnel, scientific achievements like “lead sulphide/bituminous selective absorption coating”, “black chromium selective absorption coating”, “heat-rolled plate solar heater” and “zinc-coated flat solar steel heater” have all passed the appraisal of Science and Technology Commission of Beijing Municipality and have won Scientific and Technological Progress Awards. These achievements have attracted lots of attention from related national departments as well as from people of the same trade abroad. 

     In May 1986, the Institute brought from Canada “copper-aluminum compound sun bars” production line, which filled a blank of the solar energy industry in China and hence greatly improved the production efficiency and quality of solar water heater. The “Sangpu” brand copper-aluminum plate solar heaters and double circuits plat solar heaters that are exported to Europe are the knockout products of the Institute.