SE SAN 4A hydropower plant located on SE SAN river, northwest of Pleiku, Gialai province, Central Vietnam, is the first bulb turbine unit in hydropower history of Vietnam. With total capacity of 63MW(3X21MW), it connects Vietnam national grid after stepping up to 220KV by a 70MAV main transformer. As general contractor of the project, CQNEC undertakes engineering design, equipment select procurement, manufacturing, installation, test& adjusting, operation and staff training, All units have been put into commercial operation and connected to energy grid in November 2011.