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Including its facility to produce phosphorous from sewage sludge and the waste wood-fired biomass CHP plant, the waste-fired combined heat and power plant in Mannheim (MCHP) has a treatment capacity of 935.000 tonnes a year.
In 2020, the MCHP plant was connected to the district heat grid (DHG) also operated by MVV. This way, both the plant and its previously unused waste heat were integrated into the district heat (DH) supply for a region with 2.4 million habitants. Before this, the 600-kilometre DHG, with around 165,000 customers, was supplied with up to 2.1 TWh of DH a year from a conventional power plant.
The connection marked the beginning of decarbonising the DH supply in the region by 2030. This will save 420.000 tonnes of CO2/a (80 % of MVV’s total CO2 emissions). The MCHP produces round about 110 GWh of electricity, 780 GW of district steam and up to 800 GW of DH (38 %). By 2035 50 % of the district heat is due to come from the MCHP. Beside the predicted geothermal heating plants, MVV is building several river heat pumps on the Rhine. This way, the electricity generated at the MCHP plant can theoretically be used to produce up to 300 GWh DH.
With its predicted measures to capture CO2 at the site of the MCHP plant, the use of heat for the DH supply, and its energy from waste plants in the UK, MVV intends to become climate positive by 2035, ensuring that it captures more CO2 than is released into the atmosphere.
More information about the project
Other nominees for the 3rd CEWEP Integration Award:
A2A, Italy – Flue Gas Condensation Project
Sysav, Sweden – The Port of Trelleborg Expands with 87,000 tons of Sustainable “Slaggrus”
The Award winners will be decided by popular vote during CEWEP Congress 2025 on 5th June in Gdańsk.
About CEWEP Awards
