Clean heat from the Earth's interior
Geotermia Toruń is a modern system utilizing natural geothermal energy, which has recently begun supporting Toruń's municipal heating. Thanks to utilizing underground thermal resources, the city increases energy security, limits pollution emissions, and develops renewable energy sources.
Geothermal resources and their parameters
Beneath Toruń lie geothermal water deposits in Mesozoic formations of the Polish Lowlands, drawn from depths exceeding 2 000 meters. Extracted water has a temperature of about 60–65 °C, allowing its effective use in heating systems.
These resources are characterized by good hydraulic efficiency - within approved resources, even up to 320 m³/h of thermal water can be exploited, making them a stable and sure source of thermal energy for the city.
How many geothermal wells are there?
The geothermal system in Toruń relies on two main boreholes:
- TG-1 - production well drilled at the turn of 2008–2009, reaching a depth of approx. 2 336 m, having good efficiency and temperature parameters.
- TG-2A - injection well, drilled in 2021 at a distance of about 1 000 m from the first one, which together form a so-called geothermal "doublet" (production + reinjection system).
Special fiberglass pipes resistant to corrosion and high temperatures were used to build the network and heating plant, ensuring installation durability and operational safety.
Role of Toruń Geothermal in municipal heating system
The new geothermal heating plant was launched in October 2022 and began supplying energy to the municipal heating network managed by PGE Toruń.
Thanks to this, geothermal already accounts for approx. 8% of thermal energy in Toruń's system, reducing dependence on fossil fuels. The rest of the heat comes mainly from the gas heat and power plant and to a small extent from biogas.
Heat from Geotermia Toruń powers, among others, facilities in the timber port, such as the Academy of Social and Media Culture and part of the city buildings.
Why is this important for Toruń?
- Renewable energy – geothermal uses natural resources, does not depend on imported fuels or weather.
- Emission reduction – smaller share of fossil fuels means less CO₂ and other pollutants in city air.
- Energy security – stable heat source supports reliability of the heating system.
Most important information in a nutshell