Stock Photo - 14 July 2022, Saxony-Anhalt, Halle: View of the two digestion towers at the Halle-Nord wastewater treatment plant operated by Hallesche Wasser und Stadtwirtschaft (HWS). The sewage treatment plant is to be able to supply itself entirely with self-generated electricity by 2026. To achieve this, firstly the power consumption of the plants is to be reduced, secondly more electricity is to be generated from sewage gas in a combined heat and power plant, and thirdly a folding solar roof is to be erected over the basins. The sewage treatment plant is the largest energy consumer within HWS. Photo: Jan Woitas/dpa. - Halle/Saxony-Anhalt/Germany

Stock Photo: 14 July 2022, Saxony-Anhalt, Halle: View of the two digestion towers at the Halle-Nord wastewater treatment plant operated by Hallesche Wasser und.

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