Germany's switch to renewable energy is well under way. Our work at REMONDIS is also making a considerable contribution towards ensuring this goal is reached. In 2015, around 19 TWh of the total amount of energy produced in Germany came from the waste management sector – 19 TWh, therefore, generated without having to use valuable primary raw materials. This may only be 3% of the gross energy produced but it is still an important factor. Unlike energy generated by wind and solar systems, the electricity from waste incineration plants is available 24/7, 365 days a year.
336,900 MWh of energy (electricity and heat) are produced at the Lippe Plant in Lünen alone by its fluidised bed power plant (178,300 MWh) and its biomass-fired power plant (158,600 MWh). This is more than twice the amount needed by the site itself which means that around 222,300 MWh can be fed into the grid and used by others outside the plant.
REMONDIS also has shares in a variety of waste incineration plants across Germany which also play an important role in supplying their regions with energy. Furthermore, electricity is also generated by the hazardous waste incineration plant operated by our subsidiary REMONDIS SAVA.
> Amount of energy produced by REMONDIS' Lippe Plant every year | |
---|---|
Fluidised bed power plant | 178,300 MWh |
Biomass-fired power plant | 158,600 MWh |
Own energy requirements | 114,600 MWh |
Energy output for external customers | 222,300 MWh |
Our biomass-fired plant in Lünen
Incinerating waste is not the only way to produce environmentally and climate friendly energy. As we carry out our work every day, we are always looking for new technologies that might help us to drive forward sustainability. There are not just one but two great reasons for thermally treating the sewage sludge produced from wastewater treatment. On the one hand, it is a smart way to produce carbon-neutral energy. On the other, it eliminates all the pollutants found in the sewage sludge.
A plant producing energy from sewage sludge
Industrial wastewater, especially water from the food processing industry, often contains large amounts of organic substances. We use fully automated anaerobic pre-treatment systems to eliminate these organic substances from the wastewater and generate biogas, a particularly efficient form of energy, at the same time. This biogas can, for example, be transformed into electricity by a combined heat and power plant or can be used to substitute natural gas to produce process heat.
One of our customers using this so-called RE2ENERGY® process is the Oettinger Brewery in Mönchengladbach. This highly efficient system is cost effective, helps prevent climate change and produces energy – and was the reason why the Oettinger Brewery was awarded the IHK Energy Efficiency Prize in 2014. RE2ENERGY®, however, is not only used in companies but at a variety of municipal sewage treatment plants as well. The biogas produced is transformed on site into energy, supplying the plants with both electricity to power their operations as well as heat to heat their digested sludge tanks. With all of it being totally carbon-neutral.
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