The Berlin Transport Authoriity, the Berliner Verkehrsbetriebe  (BVG)  is preparing the acquisition of 50 more hydrogen buses this year to be delivered next year. With 14 hydrogen buses already in daily service the BVG saved  130 t CO2 since 2007. The BVG is operating also 5 CNG buses, but as the costs of natural gas has gone up no acquisition of CNG buses have been communicated.