Report Transmission (1,740 FTE2) Distribution (9,190 FTE2) Operation and maintenance of an ultrahigh-voltage grid (220/380 kv) with a length of 11,028 km, transmission controlled at the Brauweiler Control Centre, operation and maintenance of a natural gas transmission grid (8 – 100 bar) with a length of 26,060 km as well as substations Operation and maintenance of a 391,300km-long electricity grid (10 – 110 kV) with 134,240 substations and transformers as well as a 90,345-km-long natural gas distribution grid (0.02 – 70 bar).