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On 10 June 2021, the German Bundestag passed stricter exhaust gas limits for power plants that burn fossil fuels, waste incineration plants and plants for the production of basic organic chemicals. This new ordinance combines the new version of the 13th BImSchV (06/2020) - Ordinance on Large Combustion, Gas Turbine and Internal Combustion Engine Plants and the 17th BImSchV (05/2013) - Ordinance on the Incineration and Co-incineration of Waste and adapts it to the state of the art.
The stipulations concern the limit values for emissions of mercury, nitrogen and sulphur oxides, formaldehyde and methane as well as for dust. The emission limits for mercury in particular will be significantly reduced from 30 µg/m³ to 20 µg/m³ for daily average values. New annual average values for mercury will be introduced for around 580 large combustion plants in Germany in line with the state of the art. The requirements for existing large coal-fired power plants are to be reduced in a phased plan from the current 10 µg/m³ to an annual average of 4 or 5 µg/m³ and by a further 1 µg/m³ in around 4 years. The limit values depend on the size and age of the plants and the type of coal.
With the new ordinance, the German government is implementing requirements that have emerged as conclusions from the EU-wide "Best Available Techniques for Large Combustion Plants" (BAT) adopted in 2017. Based on this, pollutant limit values are to be updated for industrial plants in the EU in order to ensure reductions based on improved technical possibilities.
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