Topusko, Croatia

The Municipality of Topusko

Topusko is a municipality in Sisak-Moslavina County, located in central Croatia 70 km south of the capital city Zagreb with a population of approximately 3,000.

The Demonstrator

Health Spa Topusko (Lječilište Topusko) is the REWARDHEAT partner in charge for the Topusko (HR) demonstrator. The focus of this demonstrator is the retrofit of an existing DHN.

Health Spa Topusko is a health institution that uses geothermal water and peloid for rehabilitation and health tourism. TOP-TERME Ltd. is 100% owned by Health Spa Topusko, which provides accommodation, food, and recreation services. The  companies share ownership of the local heating system as well as the rights to exploit geothermal springs for the purpose of supplying heat energy to private, commercial, and public sector facilities.

Thermal springs abound in the Topusko area. Four wells provide geothermal energy for the heating system. Thermal well 4 is the most productive, with a year-round water temperature of 64°C, a source capacity of 100 l/s, and an average annual exploitation of 650.000 m3;/year, supplying the Central district heating station (CHS), where energy is exchanged for space heating, hot water for household use, and geothermal water for balneotherapy and recreational pools.

Part of existing DHN that supply internal consumers will be retrofitted by pipeline restoration, smart control, and monitoring system by implementing smart monitoring and control hardware and software into the CHS overall reducing the exploitation of geothermal water and waste heat generated during exploitation. The preparation of DHW will be decentralized, and great part of CHS will be reconstructed to increase energy efficiency and better utilization of the geothermal water. Geothermal water after using it for energy purpose will be used for balneotherapy and pools water.The installation of this customised system will improve the quality of Health Spa Topusko's and TOP-TERME Ltd's services. As a result, the greatest benefit will be felt by patients, guests, and service users. Realization of the REWARDHeat project will complete the 1st phase in the further planned development and improvement of the existing system of utilization and distribution of geothermal water and the expansion of the existing DHN.

The REWARDHeat partners involved within Topusko demonstrator are:

• ENISYST: for the implementation of smart monitoring and control hardware and software

• Thermaflex: for part of pre-insulated pipelines