CASC main tasks cover the design,manufacture,test and new product research of power-source for space and new energy field.Its products include power-sources subsystem of spacevehicles and solar cell,storage battery,power control unit and ground photovoltaic power generation system,energy storage system,power Li-ion batteries of new energy field. CASC is devoting to the research of electrical power-sources,in which personnel processes technical background of design,manufacture,test for products of space electrical power-sources and new energy.CASC is the leader in field of electrical power-sources innovation in China.Li-ion batteries,triple junction GaAs solar cells and low-orbit high voltage 100V bus power conditioner were successfully applied in space vehicles for the first time in China. The successful application of above-mentioned advanced technology of electrical power-sources subsystem in orbit set a mentioned in the history of space vehicles in China. At present,CASC is the leader of domestic market share,which owns annual capacity of parallel manufacturing for dozens of satellite power subsystems.It has provided good quality power-sources products and subsystem solutions of space vehicles and ground applications for several counties. As for the product export, we supplied Nicd battery pack to SSC twice for FREJA ODIN Satellites. The congratulation letter from the customer describe Freja was operated in orbit for 12 years. We supplied BSF silicon cells to Brazil for SCD2A satellite ,the GAAS solar cells to INPE for CBERS, the BSR silicon solar cells to India for GEO satellite.