Rheinsberg Nuclear Power Plant (KKR) Remote Dismantling. The Rheinsberg Nuclear Power Plant (Rheinsberg NPP, KKR) was designed and built in close cooperation between German and Soviet experts, under an agreement between the GDR and the USSR (Union of Soviet Socialist Republics) in 1956. It was equipped with the first Russian pressurized water reactor of the WWER-2 type to be built abroad. The main components of the plant were the reactor with the primary circuit, the turbine with the secondary circuit, the active water treatment system, the final store close to the surface as well as the associated infrastructure (energy, heat and water supply, connection to the traffic system).