16.08.2023: After Neuwied, Langen, Erkelenz, Lehre, Darmsheim, Frankfurt and Oberndorf, another German WWTP relies on the solar folding roof technology. At the main sewage treatment plant in Stuttgart-Mühlhausen, around 17,000 square metres will be covered with 5,280 modules by spring 2026. The electricity produced by the solar folding roof can cover up to eleven percent of the annual electricity consumption directly in the WWTP.
In the medium term, almost 18 per cent of the electricity required is to come from the sun. The Eigenbetrieb Stadtentwässerung Stuttgart not only wants to roof the aeration basin in the north of the 25-hectare plant, but also the similarly large one in the south.
With an installed capacity of 2,745 kWp and an area of almost two football fields, the solar folding roof in the north will be the largest that dhp has built to date. For comparison: The annually generated energy yield of around 2.6 gigawatt hours corresponds to the electricity needs of 970 four-person households per year.