A system analysis of technological changes in the Romanian high voltage power network

Increasing demand for energy requires large-scale construction of power plants and adequate growth of the transmission network. Currently, several high-voltage transmission subsystems (110, 220, 400, 500, and 750 kV) coexist in the same network. We investigate the mechanism of substitution of voltage for the medium-size energy system in Romania by using the Marchetti-Nakicenovic model and Romanian data of the period 1965–1981. The horizon of our prediction is up to the year 2030.