The electricity journey
Power grids bring electricity from the power plant to the consumer by means of the transmission and distribution grids. On the way to the electrical outlet the electricity has to be transformed into the required voltage. This takes place on several levels, so-called grid levels:
- Extra-high-voltage grid with 380/220 kilovolts
- High-voltage or supra-regional grid with 50 to 150 kilovolts
- Medium-voltage regional grid with 1 to 30 kilovolts
- Low-voltage local grid up to 1 kilovolt
Swissgrid, the national grid company, operates Switzerland’s distribution grid, and ensures energy transport over great distances. In this process, Axpo has an important intermediary role: the Axpo distribution grids (110, 50 and 16 kilovolts) connect Swissgrid’s transmission grid (220 and 380 kilovolts) with the distribution grids of Axpo partners – the cantonal, city and municipal utilities.