Lithuanian Energy Institute

Lithuanian Energy Institute (LEI) is internationally recognized energy-related research, development and innovation (R&D&I) competence center. LEI is a Public institution.

Lithuanian Energy Institute was established in 1956 and became known among local and international scientific society interested in fundamental research in hydrodynamics, thermal physics, material science, simulation and control of power supply systems, hydrology, energy economy. The current name of the Institute was given in 1992 by the Government of the Republic of Lithuania.

LEI is a state technical research center dealing with energy related research in mathematical modelling of power systems and networks, investigation of their control issues; modelling and optimization research of ICT-based control systems of power systems; renewable energy; analysis of security of energy supply; development of energy planning methods; fuel cells and hydrogen; thermal physics and fluid mechanics; nuclear safety; structural integrity assessment of components and structures; simulation of complex energy systems. LEI has 235 employees (as of January 2024). Among them, there are 110 Ph.D., 30 researchers with B.Sc. and M.Sc., and 40 Ph.D. Candidates. The Institute has extensive experience in international projects: Horizon Europe & EURATOM (8 projects, 2 – coordinators), Digital Europe (1 project), LIFE (3 projects, +1 in negotiation), H2020 (26 projects, 3 of them – coordinator), FP7 (24 projects), FP6 (14 projects), FP5 (11 projects), Intelligent Energy Europe (31 projects), COST (34 projects), Eureka (4 projects), IAEA (19 projects), INTERREG-type (17 projects), Nordic Energy Research programme (7 projects), EuropeAid (4 projects), ERASMUS+ (1 project), etc. LEI is actively involved in studies on the comprehensive analysis of the energy sector development.

Vision of LEI

The Institute is an internationally recognised centre of excellence for science, innovation and technology in energy and related fields.

Mission of LEI

To conduct research and develop innovative technologies in the fields of energy, thermal engineering, environmental engineering, measurement engineering, materials science and economics, to carry out fundamental and applied research, to participate in study processes, to transfer the results of applied research and innovations to industry, to advise the state, the government, public, private institutions, and companies on issues related to the development of sustainable energy in Lithuania, to cooperate actively with higher education institutions in the preparation of specialists for the Lithuanian society.

Strategic objectives of LEI

• To perform long-term international level fundamental and applied scientific research, to ensure international excellence in the fields of technology and social sciences, and carry out long-term fundamental and applied research and development of an international standard, which is necessary for the sustainable development of the Lithuanian energy sector and the rest of the Lithuanian economy sectors, and for its integration into the European energy systems and the European Research Area;
• in cooperation with industry, government and society, to transfer scientific knowledge and innovations into technically and commercially useful processes and equipments, ensuring the development of energy technologies and the rational evolution of energy systems, the security and reliability of energy supply, the efficient use of energy resources, the protection of the environment and the reduction of climate change;
• to disseminate scientific knowledge to the public and contribute to the creation of an innovation- and knowledge-based Lithuanian economy;
• initiate and actively participate in Lithuanian and international programme’s projects, expand cooperation with Lithuanian and foreign research and educational institutions and scientists;
• to carry out the functions of the designated Institute in accordance with the provisions of the Law on Metrology of the Republic of Lithuania;
• in cooperation with universities, to train scientists of the highest competence for the conducting of research in the fields of economics, energy and the environment, and to ensure the attraction and development of doctoral students.

Scientific activities of LEI

• Research on renewable energy and enabling technologies;
• Environmental impacts of climate change and anthropogenic activities;
• Research on economic development towards a climate-neutral society;
• Energy systems modelling and control research;
• Safety and reliability studies on industrial and energy facilities;
• Thermal physics, gas and fluid dynamics and metrology;
• Research on decommissioning of nuclear installations and radioactive waste management.