Heating modernisation for the public institutions of Létavértes: heat energy from thermal water
About this good practice
Green energy use and awareness-raising: heat energy from thermal water is used in the heating modernisation system in Létavértes
Resources needed
The investment was financed by EU sources and the Hungarian government using 615 million HUF.
Evidence of success
After the investment, the smaller school building had no gas consumption at all. The kindergarten, which has a total area of 2,000 square metres, 12 classrooms, a gym and a kitchen, used around 20,000 cubic metres of gas per year, compared to around 1,000 cubic metres from January to June 2021. The main school building, with a swimming pool and gymnasium of 4,800 square metres, consumed less than 4,000 cubic metres of gas, whereas its annual consumption was previously almost 60,000 cubic metres.
Potential for learning or transfer
For areas having adequate thermal water asset, the system could completely replace gas consumption.
About 30 percent of the thermal water brought to the surface by the pumps is dissolved gas, much of which can be burned. That's why a degassing tank was built at the production well. If the dissolved gas is burned in a boiler, it is possible to increase the forward temperature by a further 6-10 degrees and to use the thermal water directly for heating the pool. The latter will result in even lower gas consumption.