With the help of EU funds, a district heating system in the town of Dunajská Streda, in southern Slovakia, was made more energy efficient. The work improved the system’s reliability, decreased operating costs and reduced its environmental impact.
- 18 June 2020
The project replaced the existing hot-water system with a new two-pipe system and constructed compact heat exchange stations. These measures increased the efficiency of operation and stabilised heat and domestic hot water supply for households in district of Mlyny, in the town of Dunajská Streda.
The operator of the district heating system, Southerm, carried out the modifications to reduce the heat losses of the old system and in turn, answer the demand for heat for one of the town’s districts, Mlyny.
A new two-pipe hot-water system
The upgraded system supplies heat through an insulated two-pipe hot-water system. It has several new compact heat exchanger stations connected to the existing gas boiler room of the district’s main heating facility, K18. K18 provides heat for all residents of Mlyny.
The new exchange stations have been constructed at specific off-take points, to maximise the system’s availability and reach. The two-pipe hot-water system has been insulated to avoid energy losses during distribution from the boiler to homes.
Lower environmental footprint
The new system has contributed substantially to reducing the facility’s environmental footprint. An energy audit showed that greenhouse gas emissions decreased by 226.56 tonnes in the first year of the new system’s operation. Energy savings were estimated at 1 105.18 MWh for the same period.
The modifications increased the reliability of the system and reduced operating costs.
The project has contributed to the country’s energy savings goals, set out in the EU’s national energy efficiency action plans for 2020.
Total investment and EU funding
Total investment for the project “Reconstruction of central heat supply of circuit K18 - Mlyny” is EUR 1 456 824, with the EU’s European Regional Development Fund contribution of EUR 1 238 300 through the Operational Programme “Quality of Environment” for the 2014-2020 programming period. The investment falls under the priority “Energy efficient low-carbon economy in all sectors”.