About LEI


Presentation video of the Lithuanian Energy Institute

Lithuanian Energy Institute (LEI) is internationally recognized energy-related research, development and innovation (R&D&I) competence center. LEI is state budgetary 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 230 employees (as of January 2021). Among them, there are 110 Ph.D., 30 researchers with B.Sc. and M.Sc., and 30 Ph.D. Candidates. The Institute has extensive experience in international projects: H2020 (26 projects, 3 of them – coordinator), FP7 (24 projects), FP6 (14 projects), FP5 (11 projects), Intelligent Energy Europe (31 projects), COST (27 projects), Eureka (4 projects), IAEA (19 projects), INTERREG-type (13 projects), Nordic Energy Research programme (4 projects), EuropeAid (4 projects), etc. LEI is actively involved in studies related to comprehensive analysis of the energy sector development.

Mission of the Institute

to perform energy, thermal, measurement, material engineering and social sciences (energy economy) research;
to create innovative technologies; to perform scientific and applied research, to participate in study processes; to transfer applied research results to industry and business;
to consult governmental, public and private institutions and enterprises on the issues related with Lithuanian sustainable energy development;
to actively participate (together with Higher Education institutions) in preparing specialists for Lithuanian Science and Economy.

Strategic objectives

To perform long-term international level fundamental and applied R&D&I activities, which are necessary for sustainable development of Lithuanian Energy Sector and other Lithuanian economy branches as well as integration into the European energy system and European Research Area;
To cooperate with business, governmental and public entities, to transfer knowledge to technically and commercially beneficial processes and facilities, ensuring development of innovative energy technologies, economy and security of energy sites and systems, efficient usage and energy sources, environmental pollution reduction and climate warming moderation;
To spread scientific knowledge in society, to promote innovation and knowledge based Lithuanian economy development;
To actively participate in EU R&D&I programmes and international projects, expand cooperation with internationally recognised research centers.

R&D&I Directions

In order to increase the number of contracts with companies, project “Promotion of the activities of the LEI Research, Experimental Development and Innovation Transfer Division (MTEPIPS)” was initiated in 2018. LEI actively invests in effort to further strengthen the competencies of R&D&I transfer, and to sooner recognize the ideas of LEI researchers, that will have the potential for R&D&I commercialization and will contribute to the growth of LEI joint activities with business entities.

I. Thermal physics, gas and liquid dynamics and metrology research;
II. Research of materials, processes and technologies, devoted to use renewable energy sources, to develop hydrogen energy, to efficiently use energy sources and reduce environmental pollution;
III. Safety and reliability research of nuclear and thermal nuclear power engineering and other industrial objects;
IV. Methods of nuclear waste management, also terminating the operation of Ignalina nuclear power plant;
V. Simulation and management of power systems, energy economy.