Nanjing Chengguo Power Technology Co., Ltd. was founded in 2003 and is a professional general contracting service provider for power projects. Since its establishment, it has been based on power grid construction and served major industrial and mining enterprises. The company has funded the construction of a 110kV analog substation by itself to serve the simulation training of customer units 'electrical operation and maintenance personnel and its own employees. At the same time, it has also cooperated with Chengxian College of Southeast University to jointly build an off-campus training base for Chengxian College of Dongda University. Nanjing Aggression is committed to providing customers with full-site power services from pre-project design, power project construction to power facility operation and maintenance after commissioning. The company has about 200 employees, and professional and technical personnel account for about 80%. The company has teams such as power transmission and transformation equipment installation, relay protection debugging, power automation, high-voltage electrical testing, power information communication, dispatching data network and power safety protection, power storage power station reverse power transmission test load leasing, drone inspection and surveying, power transmission and transformation equipment operation and maintenance, safety appliance testing and transformer oil testing. The company's main business: general contracting of power projects of 220kV and below, substation expansion and renovation, power transformers and GIS disassembly and maintenance, flexible DC engineering, microgrids and energy storage, power distribution engineering, power transmission and transformation equipment operation and maintenance and drone inspection, safety tool testing, power transformer oil testing, power storage power station inverter test load leasing, etc.