Relevance for the project:
- Representative of Eastern European cities
- Humid continental climate with four separate seasons, warm summers and cold winters without a discernible dry season
- Need for a smart strategy for collection of relevant data for H&C demand and supply potential mapping
- Need to retrofit the existing DH network (i.e. distribution and generation) based on natural gas and oil
Velika Gorica it is Croatia’s 6th largest city with approximately 60,000 inhabitants and it belongs to the Turopolje region. Velika Gorica and the University of Zagreb can look back on a long and continous cooperation.
An old DH network is present. It consists of several smaller and one big network that are not all interconnected and are supplied by several heat stations run on either gas or fuel oil.
The city is extremely interested in refurbishing the existing network, both on the side of supply and distribution, and in decarbonising the system leveraging on the use of locally available resources, such as biomass, biogas, solar, geothermal.
As a first step, a workshop on sustainable management of local SEAP with special focus on district heating measures was held in Velika Gorica in June 2015. The workshop was organized in the Public Open University of Velika Gorica. Cooling is also an issue, since the city can experience both very cold winters and very hot summers. It is also worth noting that there is a lake on the outskirts of the city that could be used as a cooling source for the city. Furthermore, the city is surrounded by forest it has access to biomass. There is a plan to build a water treatment facility and a facility for the management of organic waste that could be further valorised for the biogas production to be cogenerated for heating and electricity production. Other needs are better sources of data, plans for the utilization of solar energy and all of the local potentials. As far as the data is concerned, Velika Gorica owns a good amount of data available for a typical European city even if it does not yet reach the level of Northern Europe.
Photo credits: Mario Žilec