Proton Motor Power Systems plc announced that following the recent extension of the co-operation agreement with DB Bahnbau Gruppe GmbH ("DB Bahnbau"), which was first announced on 20 July 2015, it has: received an order from DB Bahnbau for a PM Frame fuel cell system (Proton Motor's modular fuel cell system for customised integration); and entered into a maintenance services contract for 22 systems, which were delivered in 2016, with DB Bahnbau acting as general contractor. The Board estimate the market potential for Emergency Power Systems (EPS) to be delivered in co-operation with DB Bahnbau to be up to 1,800 sites with power requirement levels of between 10kW and 500kW.