Performance Analysis of a Hybrid District Heating System: A Case Study of a Small Town in Croatia

Robert Mikulandric, Goran Krajačić, Neven Duic, Gennadii Khavin, Henrik Lund, Brian Vad Mathiesen, Poul Alberg Østergaard

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

32 Citationer (Scopus)


Hybridisation of district heating systems can contribute to more efficient heat generation through cogeneration power plants or through the share increase of renewable energy sources in total energy consumption while reducing negative aspects of particular energy source utilisation. In this work, the performance of a hybrid district energy system for a small town in Croatia has been analysed. Mathematical model for process analysis and optimisation algorithm for optimal system configuration has been developed and described. The main goal of the system optimisation is to reduce heat production costs. Several energy sources for heat production have been considered in 8 different simulation cases. Simulation results show that the heat production costs could be reduced with introduction of different energy systems into an existing district heating system. Renewable energy based district heating systems could contribute to heat production costs decrease in district heating systems up to 30% in comparison with highly efficient heat production technologies based on conventional fuels.
TidsskriftJournal of Sustainable Development of Energy, Water and Environment Systems
Udgave nummer3
Sider (fra-til)282-302
Antal sider21
StatusUdgivet - 2015


  • renewable energy systems
  • system optimisation
  • district heating system analysis
  • District heating system hybridisation