Amprion GmbH operates a transmission system with the voltage levels of 380 and 220 kV. The key task of its approximately 850 employees is to transmit electricity at competitive prices safely and reliably at all times. With a length of around 11,000 km and around 160 substations between north-western Germany and the borders with Switzerland and Austria, the extra-high voltage transmission system is the largest in Germany. The system connects power plants with the load centres. Due to its central position in Europe, the transmission system is an important hub for electricity trading between northern and southern as well as eastern and western Europe. Therefore it is also an important pillar of the German and the European transmission grid. Amprion is responsible for one of the largest grid areas in Europe and assumes an important task in the European interconnector system.