The Stargard geothermal reservoir possesses some of the best energy parameters in the country. The main asset here is the very good temperature, reaching up to 90°C, which allows for highly efficient powering of the municipal heating network. Thanks to such hot sources, Stargard can realistically reduce fossil fuel combustion, betting on an ecological alternative.
Characteristics of Stargard's Geothermal Wells
Injection Wells (Reinjection):
- GT-1: Vertical well with a depth of 2 660 m. Originally used as a production well, currently serves for reinjection of cooled brine.
- GT-2: "J" type directional well with a length of 3 080 m. Surface temperature is 83.5°C. Currently serves a dual function (production/injection).
- GT-3: Vertical well with a depth of 2 700 m. This is the second vertical injection well, commissioned in 2017.
- GT-4 (2 900 m) and GT-5 (2 890 m): Modern "J" type directional wells, commissioned in 2020 to increase system efficiency.
Production Wells:
- GT-6: "S" type directional well. Depth 2 870 m. Temperature of extracted water: 89°C.
- GT-7: "S" type directional well. Depth 2 958 m. Temperature of extracted water: 90°C.
Thanks to the application of a unique system of seven geothermal wells connected in a collector arrangement (relying on the cooperation of production wells on the production manifold and injection wells on injection manifolds), the extracted brine goes directly to the advanced heat recovery installation, and after releasing energy, it is safely reinjected back into the reservoir. Such a process guarantees Stargard stable access to energy and full renewability of resources while maintaining the highest environmental protection standards.