Greifswald Nuclear Power Plant

Greifswald Nuclear Power Plant
Freie Deutsche Jugend und Energiewerke Nord · Public domain · source
Name	Greifswald Nuclear Power Plant
Native name	Kernkraftwerk Greifswald
Country	East Germany
Location	Lubmin, Mecklenburg-Vorpommern
Status	Decommissioned
Construction started	1967
Commissioned	1973
Decommissioned	1990–1995
Operator	Energiewerke Nord GmbH / Vattenfall
Reactor type	VVER (VVER-440)
Units	5 × 440 MW_e (operational), 2 cancelled
Capacity	2,200 MW_e (installed)

Greifswald Nuclear Power Plant was a major Soviet-designed nuclear power complex built near Lubmin on the Baltic coast in what was then East Germany and later Germany. It became one of the largest nuclear sites in Europe by number of reactors, embodying Cold War technological exchange between Soviet Union institutions and Deutsche Demokratische Republik planners, and later drawing scrutiny from Bundesrepublik Deutschland authorities, International Atomic Energy Agency, and environmental organizations. The plant’s operational life, rapid shutdown, and protracted decommissioning influenced debates in Euronuclear policy, German reunification, and regional economic transition.

History

Initial planning linked engineering offices in Moscow and design bureaus such as OKB in the Soviet Union, responding to agreements between Comecon and Deutsche Reichsbahn-era energy bodies. Construction began amid five-year plans and industrial modernization drives involving SED policymakers, Wismar shipyards, and Baltic infrastructure projects. Following commissioning for Units 1–4 during the 1970s and Unit 5 in the late 1980s, the site operated under state-owned utilities tied to VEB structures and later entities like Energiewerke Nord GmbH. After the Chernobyl disaster and the political shifts culminating in German reunification (1990), federal assessments by agencies including the Bundesamt für Strahlenschutz prompted rapid closure decisions and international inspections by the International Atomic Energy Agency.

Reactor Design and Units

The complex comprised multiple Soviet-designed VVER-440 pressurized water reactors manufactured by enterprises in Leningrad and components from Energomasch. Units 1–4 followed the VVER-440/V-230 series with horizontal steam generators, hexagonal fuel assemblies supplied via contracts with TVEL predecessors, and control systems reflecting OKB Gidropress practices. Unit 5 was of a later VVER-440 model incorporating partial safety upgrades promoted after Three Mile Island and influenced by research from Kurchatov Institute teams. Ancillary installations included turbine halls built by firms in St. Petersburg and Soviet Union subcontractors, electrical interconnects to the Baltic Sea grid and international transmission corridors tied to Poland and West Germany networks.

Construction and Operation

Construction mobilized contractors from Soviet Union, Czechoslovakia, and Poland, coordinated with East German industrial conglomerates linked to VEB Energiekombinat units. The earliest reactors reached criticality and synchronized with grids managed by VE-Transmission systems in the early 1970s, supplying baseload power to heavy industry in Rostock, Neubrandenburg, and chemical complexes in Schwedt. Operation involved collaboration with research institutions such as the Institut für Reaktorsicherheit and exchanges with designers from Atomenergoprom. Workforce training included postings to facilities like Obninsk and academic ties to TU Dresden and University of Greifswald engineering departments.

Accidents and Incidents

The plant experienced incidents typical of early pressurized water reactor fleets, including coolant system anomalies, steam generator maintenance issues, and control rod irregularities noted in logs reviewed by Stasi archives and later by Bundesamt für Strahlenschutz. After Chernobyl, intensified safety reviews uncovered deficiencies relative to Western Nuclear Regulatory Commission-era standards and led to shutdown directives. Specific documented events included nitrogen accumulation episodes in secondary circuits and turbine-generator fires addressed by emergency services from Greifswald and regional firefighting brigades. International scrutiny led to IAEA missions and comparative assessments with facilities such as Kozloduy Nuclear Power Plant and Dukovany Nuclear Power Station.

Decommissioning and Site Legacy

Following reunification, the Bundesregierung mandated closure of all units; Units 1–5 were shut down between 1990 and 1995, with Units 6–7 cancelled. Decommissioning was overseen by Energiewerke Nord GmbH and later involved entities like Vattenfall for site remediation and asset management. Radiological decontamination, spent fuel removal to interim storage facilities, and dismantling of turbine halls required coordination with contractors from France, Sweden, and Russia and transport through ports such as Sassnitz. Decommissioning efforts became case studies in post-Cold War nuclear liability, informing policies at European Commission level and practices adopted at former Soviet sites including Ignalina Nuclear Power Plant.

Environmental and Health Impacts

Environmental monitoring programs by Helmholtz Centre for Environmental Research, state health institutes, and NGOs such as Greenpeace examined radioactive effluent, tritium traces in the Baltic Sea, and long-term soil contamination around Lubmin. Epidemiological studies conducted with collaborators from Charité – Universitätsmedizin Berlin and University of Greifswald explored cancer incidence patterns and occupational dose records, drawing comparisons to findings from Sellafield and Kyshtym-era analyses. Contested assessments fueled legal actions and compensation discussions involving workers’ unions like IG Metall and health agencies under Sozialgesetzbuch regulations.

Cultural and Economic Context of the Region

The plant shaped regional demographics, with migration linked to construction phases, housing estates built by Wismarsche Wohnungsbaugesellschaften, and supplier clusters tied to Norddeutsche Werften and chemical firms. Its closure contributed to economic restructuring of Mecklenburg-Vorpommern and spurred redevelopment initiatives involving European Investment Bank programs, tourism promotion near Usedom and Rügen, and heritage debates involving museums and activists from Bund für Umwelt und Naturschutz Deutschland. The site remains a symbol in cultural works addressing reunification, industrial heritage, and energy transition themes discussed in forums attended by representatives from Bundestag committees and international climate policy conferences.

Category:Defunct nuclear power stations in Germany Category:Nuclear power stations using VVER reactors Category:Buildings and structures in Mecklenburg-Vorpommern