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general:projections:wam-scenario [2025/04/04 12:43] – eisoldgeneral:projections:wam-scenario [2025/04/04 12:51] (current) – eisold
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 === Additional measures that have not yet been implemented are assigned to the WAM scenario===    === Additional measures that have not yet been implemented are assigned to the WAM scenario===   
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 **Optional amendment of the 13<sup>th</sup> BImSchV** **Optional amendment of the 13<sup>th</sup> BImSchV**
  
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 Through amendment of the Commission regulation (EU) 2015/1185 with regard to ecodesign requirements for solid fuel local space heaters, it was assumed that requirements for placing on the market and putting into service solid biomass local space heaters regarding emissions of particulate matter will be set at 20 mg/m<sup>3</sup> TSP from 2029 (measured according to VDI 2066 Sheet 1, May 2021 edition and based on 13 % reference oxygen content). Through amendment of the Commission regulation (EU) 2015/1185 with regard to ecodesign requirements for solid fuel local space heaters, it was assumed that requirements for placing on the market and putting into service solid biomass local space heaters regarding emissions of particulate matter will be set at 20 mg/m<sup>3</sup> TSP from 2029 (measured according to VDI 2066 Sheet 1, May 2021 edition and based on 13 % reference oxygen content).
  
-Considering these assumptions as well as the potentially increased biomass use described above, a potential emission reduction of 1.4 kt PM<sub>2.5</sub> in 2030 compared to the WM scenario in combination with a potentially increased biomass use in the building sector due to the proposed amendment of the building energy act (described above) was quantified. The absolute emission mitigation potential in 2030 depends on the projected biomass use as well as the year, when the proposed amendment applies for new installations. Less stricter requirements regarding particle emissions in the national law will basically increase the mitigation potential of the proposed amendment of the EU ecodesign regulations.+Considering these assumptions and the projected use of solid biomass in small combustion installations in the current WM scenario, a potential emission reduction of 0.8 kt PM<sub>2.5</sub> in 2030, of 1.3 kt in 2035 and of 1.8 kt in 2040 was quantified in the current WAM scenario. The absolute emission mitigation potential in 2030 and onwards very much depends on the projected biomass use as well as the year, when the proposed amendment will apply for new installations. The higher the use of solid biomass in the building sector is projected, the higher the mitigation potential of the proposed amendment of the Ecodesign requirements will be. Less stricter requirements regarding particle emissions in national policies (e. g. funding programmes) will increase the projected emissions in the WM scenario and thus, will also basically increase the mitigation potential of the proposed amendment of the EU ecodesign regulations.
  
 Apart from that, an ambitious EU-wide regulation of PM emissions of small combustion installations will help a lot to comply with the PM<sub>2.5</sub> limit values of the new Ambient Air Quality Directive (EU) 2024/2881((http://data.europa.eu/eli/dir/2024/2881/oj)) as well as the average exposure reduction obligation for PM<sub>2.5</sub>. Otherwise, the use of solid biomass might have to be banned in certain areas or at least temporarily restricted. Apart from that, an ambitious EU-wide regulation of PM emissions of small combustion installations will help a lot to comply with the PM<sub>2.5</sub> limit values of the new Ambient Air Quality Directive (EU) 2024/2881((http://data.europa.eu/eli/dir/2024/2881/oj)) as well as the average exposure reduction obligation for PM<sub>2.5</sub>. Otherwise, the use of solid biomass might have to be banned in certain areas or at least temporarily restricted.