To assist the State Nuclear Regulatory Inspectorate of Ukraine (SNRIU) in preparation of means for Severe Accident Management Guidelines (SAMG) validation the project financed by the European Commission through the Instrument for Nuclear Safety Cooperation (INSC) Action Programme 2015 has been performed in 2017 – 2021 by an international project team led by LEI. The main goal was the development and validation of VVER-1000 models for Ukrainian NPP using MELCOR code by Ukrainian technical support organisation.

Two research topics for PhD related to spent nuclear fuel management were announced in 2021. Collaborative doctoral partnership is developed among Kaunas University of Technology, Lithuanian Energy Institute and the Joint Research Centre of the European Commission. Within the frame of such collaboration, the researchers of LEI, JRC center in Karlsruhe (Germany) and Institute for Transuranium Elements are performing in cooperation an integral analysis of the process inside the fuel rods during accidents.

According to the European Research Roadmap to the Realisation of Fusion Energy the next step after ITER facility is DEMO, the demonstration power plant.

The Ignalina Nuclear Power Plant (INPP) was operated with two RBMK-1500 reactors for 21 and 22 years respectively. Since 2010, decommissioning has become the major activity at Ignalina NPP.

Lithuanian Energy Institute (LEI) is participating actively in IAEA activities by performing six Coordinated Research Projects (CRPs) in different nuclear fields, three of these were initiated in 2020.