At the Dolna Odra Power Plant and Pomorzany CHP Plant, surface and underground water is abstracted, whereas at the Szczecin CHP Plant, internal sea water is abstracted. All active groundwater intakes are surrounded by direct water protection zones. The power plants of the branch are equipped with facilities to reduce pollutants contained in wastewater. Depending on the type of wastewater, it is treated in a chemical or biological treatment plant, in a mechanical treatment plant, or it is neutralised. Depending on the composition of wastewater, it is treated in one or two facilities. Rainwater and snowmelt from the branch premises are treated by means of settling tanks and separators.
The Turów Power Plant closes water circulation in production processes by diverting used water for treatment and subsequently returning it to production processes. The construction of a wet flue gas desulphurisation plant for the new power unit no. 7 in Turów is currently underway. Wastewater treated in the plant will be reused in technological processes. In order to reduce water consumption and the volume of wastewater discharge, water from the desalination of the main cooling system or, in emergencies, water discharged from the compressor cooling system is used instead of raw water for most of the year to supply water to the flue gas desulphurisation plant for units 4-6.