Energy and Power System Planning


The Energy and Power System Planning Department executes long-term energy system planning.

Areas of Work

Research at the Energy and Power System Planning Department can be divided into four basic areas:

  • general power engineering and forecasting the consumption of energy,
  • electricity generation development planning,
  • transmission networks development planning,
  • distribution networks development planning,

and these areas comprehensively cover long-term planning of the electric power system: from complex predictions of electricity consumption, through covering the predicted consumption with power plants and transmission and distribution networks planning, enabling a reliable supply of electricity to consumers.

Our department is active in the following areas:

  • distribution networks development planning and optimisation,
  • transmission networks development planning and optimisation,
  • the development of distribution networks planning criteria,
  • the development of software for analysing distribution and transmission networks within the scope of the GREDOS software package,
  • the analysis of international connections with commercial lines,
  • the inclusion of new production sources to EPS and the optimisation of production companies development,
  • the development of programme tools for analysing the hydrological situation and potential generation of hydro power plants,
  • the costs of electric power production, transmission and distribution,
  • issues related to reactive power and distributed sources,
  • energy consumption development,
  • deregulation in the electric power industry,
  • opening the electric power market and resolving the problems that occur,
  • determining the prices of electricity of production facilities,
  • the impact of traffic electrification and heating on the electric power system development.


PHONE: +386 1 474 36 30

Head of Department

M. Sc., Leon Valencic
Phone: +386 1 474 36 30

Important publications of the department



years present in international markets


years active in research and development




accredited laboratories


expert departments


library literature units


implemented expert studies


active collaborations in domestic and foreign organisations