The project's transmission links pass through six provinces, autonomous regions and municipalities, across Ningxia, Gansu, Shaanxi, Chongqing, Hubei and Hunan, with a total length of nearly 1,500 kilometers. It will deliver 40 billion kWh to 44 billion kWh of electricity annually – translating into an increase of about one-sixth of Hunan's electricity needs when put into operation by the end of the 14th Five-Year Plan (2021-25).