Greenfield planning of modern metropolises

This paper describes the challenges and opportunities of greenfield planning of economic power systems. Planning criteria and methodology of network planning have to be adapted and optimised for greenfield development of a new metropolises. The approach to designing a high voltage network for an entire city from scratch is explained. Necessary network studies and investigations are described. Efficient network concepts, including voltage level selection, transmission and distribution network topologies are discussed. Dynamic aspects are explained, such as frequency and voltage stability. As the new cities sometimes start their development at island operation, the power system has to be capable to operate islanded as well as connected to a national grid.