Structure of the power gridTransmission grids
The transmission grids for the European interconnected power system are intended solely for transferring bulk power to areas of demand. The voltage in the European interconnected power system is usually 220 kV or 380 kV. The transmission grids are superimposed on the distribution grids and feed them with energy via substations. Conventional power plants as well as offshore wind farms mainly feed electricity into the extra-high-voltage grid.