Geothermal project in Velky Meder
Two existing district heating systems were originally operated in the town, each with single central boiler plant. Boiler plant supplied both heat and hot tap water to the dwellings Stred I and II. Boiler plants were obsolete and required reconstruction urgently.
Within the geothermal project implementation, existing two district heating systems were united and the heat source was centralized in the facility of original boiler plant Stred I. Also new object in the charge of the municipality were connected to the grid. Centralization of the heat source was required also due to geothermal energy utilization.
geothermal well VM-1 was drilled in order to provide geothermal water for
district heating purposes. Total depth of the well is 2 450 m, flow rate
at the free flow is 10 l/s at temperature of 92°C. Geothermal heat exchanger
station was build in the central heat source with two plate heat exchangers
with thermal output of 2 x 1 549 kW. Thermally utilized geothermal water
is transported to the facilities of thermal spa where the second stage of
utilization takes place.
Geothermal energy, as one of the cleanest and most stable renewable energy resources, can be used for producing of 84 % of total heat energy produced in the central heat source annually. Up to 1 mil. m3 of natural gas is saved each year, which leads to the reduction of CO2 emissions by almost 2 tons. Geothermal district heating project in Velky Meder is the fourth project of it´s kind in Slovakia and fully confirms that geothermal energy represents economically advantageous, sustainable and reliable domestic renewable energy resource.