Admission to PhD studies

Lithuanian Energy Institute offers promising studies in European Green Deal topics with great prospect of employment!

Lithuanian Energy Institute invites active students who have obtained a master’s degree in mathematics, physics, chemistry, energy, thermal engineering, materials engineering, electrical engineering, mechanics, environmental engineering, natural sciences, economics to contribute to the goals of the European Green Deal and apply to doctoral studies in the fields of Energetics and Power Engineering, Environmental Engineering and Economics.


Doctoral research topics for candidates to doctoral studies Admission 2026:

Energetics and Power Engineering (T 006)
Joint doctoral studies provided by Kaunas University of Technology (KTU) and Lithuanian Energy Institute (LEI)
Topic title Possible scientific managers Source of funding
Numerical investigation of granulated biofuel dynamics and chemical conversion processes by Discrete Elements Method Dr. Džiugys Algis State-funded
Application of the plasma methods to industry decarbonization by transitioning to sustainable and next-generation technologies Dr. Gimžauskaitė Dovilė State-funded
Investigation of plasma involved processes for converting various types of waste into valuable secondary raw materials and gases Dr. Grigaitienė Viktorija State-funded
Numerical study of the processes taking place in nuclear facilities Dr. Kaliatka Tadas State-funded
Synthesis and performance of transformed waste-based geopolymer material for energy application Dr. Kalpokaitė-Dičkuvienė Regina State-funded
Application of neural networks for monitoring and optimization of plasma processes Dr. Kavaliauskas Žydrūnas State-funded
The influence of plasma jet parameters on the formation and properties of ceramic composite coatings Dr. Marcinauskas Liutauras State-funded
Research on energy systems integration, reliability, security and resilience to disruptions Dr. Martišauskas Linas State-funded
Numerical study of the interaction of fluid flows with elastic and moving bodies Dr. Misiulis Edgaras State-funded
Sustainable and Intelligent Buildings: Interaction Between Humans, Artificial Intelligence, and Thermal Energy Storage Systems Dr. Motuzienė Violeta State-funded
Development and research of algorithms based on artificial intelligence methods applied in electric power systems Dr. Naujokaitis Darius State-funded
Enhancing jet propulsion efficiency using non-thermal plasma technology Dr. Paulauskas Rolandas State-funded
Investigation of waste heat recovery in industrial streams Dr. Poškas Robertas State-funded
Study of turbulent flow phenomena and interactions Dr. Povilaitis Mantas State-funded
Research of stationary household heating devices and development of technologies for pollution reduction and efficiency improvement Dr. Praspaliauskas Marius State-funded
Investigation of heat and mass transfer processes by Molecular Dynamics methods Dr. Skarbalius Gediminas State-funded
Application of energy-efficient and friction-reducing technologies in maritime transport: numerical and experimental studies Dr. Skvorčinskienė Raminta State-funded
Safety and reliability assessment and investigation of the processes in the nuclear fusion facilities and particle accelerators Dr. Stankūnas Gediminas State-funded
Synthesis of Sustainable Synthetic Fuels and Energy Products through Thermochemical Processes Dr. Striūgas Nerijus State-funded
Numerical Investigation of the Sustainable Transformation of a District Heating System Dr. Šereika Justas State-funded
Numerical studies of nuclear safety of the geological repository for spent nuclear fuel Dr. Šmaižys Artūras State-funded
Synthesis of Advanced Photocatalytic Structures for Light-Driven Clean Hydrogen Production Dr. Urbonavičius Marius State-funded
Analysis and control of hydrodynamic flow structures for microfluidic device applications Dr. Vilkinis Paulius State-funded
Environmental Engineering (T 004)
Joint doctoral studies provided by Kaunas University of Technology (KTU), Vytautas Magnus University (VMU) and Lithuanian Energy Institute (LEI)
Topic title Possible scientific managers Source of funding
Assessment of pluvial floods and their risk in urban areas under climate change Dr. Nazarenko Serhii State-funded
Integrated urban mining strategy for Lithuania: a techno-economic model for the recovery of valuable components from bottom ash, with material assessment and potential secondary applications Dr. Pitak Inna State-funded
Economics (S 004)
Joint doctoral studies provided by Kaunas University of Technology (KTU), Klaipėda University (KU) and Lithuanian Energy Institute (LEI)
Topic title Possible scientific managers Source of funding
Research on economic development in the context of climate change Dr. Galinis Arvydas state-funded
Political and economic measures to ensure electricity market stability while maintaining competitive prices while addressing uncertainties arising from climate change Dr. Tarvydas Dalius state-funded

Regulations for admission to doctoral studies


The applicants to doctoral studies are required to submit the following documents:
1. An application indicating the science field (with a maximum of two), the topic (with a maximum of two in the science field), and the form of funding;

2. copies of the master’s or equivalent qualification diploma(s) with the diploma supplement(s) (only the final diplomas and diploma supplements are submitted; however, provisional degree certificates are not accepted). The following additional requirements apply:
2.1. when submitting their admission documents, those applicants who have defended their master’s final thesis in Lithuania, Latvia or Estonia in 2026 (automatic recognition of higher education qualifications issued in Latvia and Estonia has been applied in Lithuania since 2019) but have not yet received their master’s diploma and diploma supplement before the deadline for the document submission specified in Subparagraph 24.3 of the Regulations can instead submit an academic transcript of the results of their master’s studies from the institution where they have defended their master’s thesis (however, upon receipt of the master’s diploma and diploma supplement, the applicants must submit copies of these documents as soon as possible, within 1–2 working days at the latest);
2.2. those applicants who have obtained their education abroad must submit a certificate of the recognition of academic qualification in the Republic of Lithuania. If this document is not submitted, the applicant’s application shall not be considered. The procedure of recognition of educational documents is set in Appendix 1 to the Regulations.

3. a curriculum vitae;

4. recommendations by two researchers of the relevant science field; one of these recommendations must be by a supervisor of the topic to which the applicant is applying. The recommendations must be prepared in the calendar year when the applicant’s application is submitted. A recommendation is required to explicitly specify the institution and the science field to which the applicant is recommended. If a research proposal must be submitted in the relevant science field, the supervisor of the topic must include an assessment of the applicant’s research proposal in the recommendation. The recommendation must include the recommender’s contact details, specifically the official email address assigned to them by the institution they represent;

5. a list of the scientific works (articles in scientific journals and conference proceedings) with a full bibliographic description and copies thereof; if no research works by the applicant are presented, the applicant is required to submit a research on a topic consistent with the dissertation topic indicated in the applicant’s application (if the applicant applies to two thematic areas, two individual (i.e., different) research papers are required to be submitted). The procedure for preparation of the research paper is specified in Appendix 2*** to the Regulations);

6. a copy of a valid personal document (page with personal data): a passport (for the citizens of all countries) or an ID card (applicable only for citizens of the European Union countries);

7. a certificate issued by CEFR, IELTS, TOEFL or any other competent institution within the last 2 (two) years, which certifies the level of the English language skills, which cannot be lower than B2 (according to CEFR), 5.5 (IELTS), 75 (TOEFL), or an equivalent score issued for other international English language proficiency examinations. Certificates indicating the level of English language that have been obtained after completing English language training via various mobile apps (for example, Duolingo, Babbel, LinguaLift, etc.) are not accepted. This certificate is not required if, instead of the certificate, the applicant submits a diploma supplement of the first or second cycle studies indicating the level of English language studies (not lower than that specified in the Regulations);

8. An additional requirement to pass the standardised mathematics examination OMPT-D test applies to the holders of foreign qualifications from certain third countries (information is available on the Kaunas University of Technology website) for these candidates to be considered for admission to a specific science field. The minimum required score on the mathematics examination is 75% (no more than two attempts to pass the examination are allowed; the results of the third attempt will not be accepted). The examination results must be no more than two years old. Additional information is provided in Appendix 6 to the Regulations;

9. consent for the processing of the applicant’s personal data (submitted together with the Application);

10. a research proposal on the selected topic (obligatory in the Economic science field); if the applicant applies to two topics, two individual research proposals have to be submitted. The procedure for preparation of the research proposal is specified in Appendix 3**** to the Regulations.

All specific requirements for each programme are indicated in the 2026 Regulations of Admission to the Third Cycle Studies at Lithuanian Energy Institute (see above).

Failure to provide all required documents on time will result in the exclusion from the competition.


Dates and Deadlines:

The dates of the Main admission to doctoral studies at the Institute

No. Procedures of admission to doctoral studies Dates
(times are in EEST TZ)
1. Submission of documents for the recognition of qualification(s) obtained abroad in Lithuania (for applicants who have obtained their education in a foreign higher education institution and do not have a document confirming the recognition of their diploma in Lithuania, and meet the statements provided in Chapter 4, Appendix 1 of the Regulations). Application form. 1–15 April 2026 (until 4:00 p.m.)
2. A standardised mathematics examination , the OMPT-D test, for holders of certain third-country foreign qualifications. till 31 May 2026
3. Submission, registration and administrative verification of admission documents 8–19 June 2026 (until 1:00 p.m)
4. Interviews with the doctoral committees of science fields 26–30 June 2026
5. Information to the applicants regarding the final results of the competition 30 June 2026, from 5:00 p.m.
6. Submission of appeals regarding the admission results and announcement of verdicts 1 July 2026:
8:00 a.m.–10:00 a.m. submission of appeals
/ 4:00 p.m. announcement of verdicts
7. Information to the applicants regarding the final results of the competition 2 July 2026, 9:00 a.m.
8. Signing of agreements with the applicants invited to doctoral studies 2 July 2026, from 1:00–4:30 p.m.
3 July 2026, 9:00 a.m.–3:00 p.m.

 


Address to deliver documents to:
Lietuvos energetikos institutas
Breslaujos st. 3, room AK-233.
44403 Kaunas, Lithuania.

Contact person:
Jolanta Kazakevičienė
Studies Administrator
tel. +370 37 401 809
email study@lei.lt