“The criticality assessment of energy systems critical infrastructure”

Author, institution: Benas Jokšas, Lithuanian Energy Institute

Science area, field: Technological Sciences, Energetics and Power Engineering

The Doctoral Dissertation is available at the libraries of Kaunas University of Technology (K. Donelaičio St. 20, Kaunas) and Lithuanian Energy Institute (Breslaujos St. 3, Kaunas).

Scientific Supervisor – Prof. Dr. Habil. Juozas AUGUTIS (Lithuanian Energy Institute, Technological Sciences, Energetics and Power Engineering – 06T).

Dissertation Defence Board of Energetics and Power Engineering Science Field:

Dr. Sigitas RIMKEVIČIUS (Lithuanian Energy Institute, Technological Sciences, Energetics and Power Engineering – 06T) – chairman;

Assoc. Prof. Dr. Audrius JONAITIS (Kaunas University of Technology, Technological Sciences, Energetics and Power Engineering – 06T);

Prof. Dr. Habil. Vytautas MARTINAITIS (Vilnius Gediminas Technical University, Technological Sciences, Energetics and Power Engineering – 06T);

Dr. Egidijus URBONAVIČIUS (Lithuanian Energy Institute, Technological Sciences, Energetics and Power Engineering – 06T);

Prof. Dr. Artūras ŠTIKONAS (Vilnius University, Physical Sciences, Mathematics – 01P).

Annotation:

This dissertation research helped to develop a new evaluation methodology of energy infrastructure systems criticality, which for the first time takes into account the interrelationships among the elements of the systems, the reliability, the risk, and random operation of the systems. The evaluation of criticality is carried out as regarded by the consumers.
The developed methodology and models helped to identify the Lithuanian energy system infrastructure elements (and their groups) that have the highest criticality for energy systems.
The designed methodology and models for the evaluation of criticality of critical energy infrastructures allow complete identification of the critical elements and their groups of the systems that have the highest criticality for energy systems, taking into account the random operation of the entire system.
The findings of the research complement the critical infrastructure (energy system) evaluation and modeling theory with new methods.
On the basis of the findings, the criticality of aggregated Lithuanian energy system was evaluated, groups of critical elements were identified, and the impact of gas development scenarios on the criticality of energy systems was evaluated.