Geothermal in Poland
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Mszczonów Geothermal

Geotermia Mszczonów
Published:
April 29, 2026
Polish Geothermal
Innovative use of Earth's energy

The Geothermal Plant in Mszczonów is an example of a modern approach to local energy, in which the Earth's natural resources have been effectively incorporated into the city's daily functioning. For over two decades, the installation has been supplying heat to residents, supporting the region's recreational offer, and – in a unique way – participating in the drinking water supply system.

Natural energy source

Beneath the surface of Mszczonów lie aquifers with favorable thermal parameters, typical of the Polish Lowlands. Geothermal waters captured from a depth of approximately 1700 meters reach a temperature of 42°C and are characterized by very low mineralization. Thanks to this, they can be used not only in heating but also in other, more demanding applications.

Heat accumulated deep in the Earth is a renewable and stable resource, independent of weather conditions. It is this feature that makes geothermal a solid foundation for the local energy system.

Ecological city heating

Launching the geothermal plant allowed Mszczonów to move away from outdated coal-based heat sources. The new heating system significantly limited pollutant emissions into the atmosphere, eliminating dusts and sulfur compounds and distinctly reducing carbon dioxide and nitrogen oxide emissions.

The installation operates in a geothermal-gas arrangement. Energy coming from underground waters covers the city's thermal demand at moderate external temperatures, while during periods of stronger frosts, the system is supported by gas fuel. Such a solution ensures heat supply continuity and high reliability.

Cascaded use of geothermal waters

One of the biggest assets of Mszczonów geothermal is the multi-stage use of the same resource. After transferring thermal energy to the heating network, geothermal water goes to the Mszczonów Thermal Baths recreational complex. Pools are filled with natural thermal water at 30–34°C, retaining its original physicochemical properties.

At the final stage, after the iron removal process, cooled water feeds the municipal water supply network. Such a solution is rarely encountered in Europe and highlights the unique character of the investment.

Technical facilities and system development

The Geothermal Plant in Mszczonów began operations in 2000 as the third installation of this type in Poland. The total system capacity is 8.5 MW. The facility is equipped with water boilers and absorption heat pumps cooperating with gas infrastructure.

In subsequent years, the system was successively modernized. A special stage of development was the implementation of a 2nd stage heat recovery installation, which increased the share of renewable energy in the heat production balance.

Significance for residents and region

Geothermal Plant Mszczonów is an investment that realistically impacts the local community's quality of life. Stable heat supplies, cleaner air, and development of recreational functions make geothermal one of the pillars of the city's sustainable development. Combining energy, environmental protection, and rational management of natural resources makes this project a model example for other local governments.

Basic parameters of Mszczonów Geothermal
Parameter Value
Commissioning year 2000
Exploitation depth approx. 1700 m
Geothermal water temperature approx. 42 °C
Water type fresh, low-mineralized
Salinity below 1 g/dm³
Heating plant installed capacity 8.5 MW
Peak sources gas installation
Geothermal operating range down to external temp. approx. –5 °C
Additional use recreation (Mszczonów Thermal Baths), drinking water