 The company was to oversee the electricity interests of the Prussian state.The Prussian state also owned the "Nordwestdeutsche Kraftwerke AG" (NWK), which merged with PreussenElektra in 1985, Ostpreussenwerke AG and the Überlandwerke and Strassenbahnen Hannover AG.Since 1929, PreussenElektra was owned by VEBA holding company.