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Last week, the Élysée Palace confirmed that the French reprocessing plant at La Hague is to be expanded. Extensive investments are planned in this context. There have already been plans since 2020 to build another storage pool on the plant site. At La Hague, there is still radioactive waste from Germany, which may be returned this year.
K. Wieczorek (GRS), K. Emmerich (KIT-CMM), T. Nagel (TUBAF), E. Bakker (KIT-CMM), R. Diedel (SSKG), M. Furche (BGR), J. L. García-Siñeriz (Amberg), U. Glaubach (IBeWa), J. Hesser (BGR), M. Hinze (GRS), M. Hofmann (TUBAF), D. Jaeggi (swisstopo), F. Königer (ISU), J. C. Mayor Zurdo (Enresa), L. Räbiger (IBeWa), M. Rey Mazón (Amberg), C. Rölke (IfG), P. Schädle (ENSI), R. Schuhmann (ISU), H. Shao (BGR), S. Tuñón (Amberg), M. V. Villar Galicia (Ciemat), T. Wilsnack (IBeWa), R. Yeatman (BDS)
On 26 April 1986, the most serious nuclear accident since the beginning of the use of nuclear energy occurred at the Chernobyl nuclear power plant in Ukraine. Due to a series of operating errors and the special features of the reactor type, the power output rose sharply (causing the coolant to suddenly vaporise), the reactor core was completely destroyed and the graphite it contained caught fire. Around eight tonnes of radioactive fuel were released into the environment. To this day, there is an exclusion zone within a radius of 30 kilometres. The following article explains what happened on site during last year and how GRS supported the work there.
S. Hagemann
So-called Small Modular Reactors (SMR) or Micro Modular Reactors (MMR) are currently being considered for low-CO2 energy generation by many countries - including our direct neighbours in France, Poland and the Czech Republic. Due to its geographical proximity, Germany needs expertise in this area, on the one hand to clarify open safety issues and, on the other, to be able to analyse and evaluate these concepts independently - for example, if an event should occur in a plant close to the German border.
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Fusion - a seemingly inexhaustible source of energy modelled on the sun that could satisfy mankind's growing hunger for energy in the future?
High active waste releases energy in the form of heat. Heat therefore plays a decisive role in the planning of a safe repository. The Bundesgesellschaft für Endlagerung (BGE) has now determined the maximum temperatures that the stored casks may reach on their surface. The temperatures have also been determined on the basis of GRS' research findings. GRS researchers have developed a new methodology for this purpose, which can be used to make statements about temperature compatibility.
L. Lovasz, L. Tiborcz, P. Pandazis, C. D’Alessandro, Y. Périn, T. Hollands, K. W. Wong, A. Wielenberg