TransnetBW GmbH operates the transmission network in Baden-Württemberg. Its legal task is to guarantee system security at all times. TransnetBW monitors and continually operates the electricity flows within Baden-Württemberg as well as the electricity exchange with neighbouring distribution and transmission network operators. The company is the owner of the transmission network infrastructure and is responsible for maintenance and the development of the network in line with requirements. The 380/220-kV power circuit owned by TransnetBW is about 3,200 kilometres long and provides an area of 34,600 km². The transmission network is available to all players in the electricity market without discrimination and at fair and transparent conditions. With around 600 employees in the future, TransnetBW will achieve an annual turnover in excess of six billion Euros.