PFC Emissions

if you produce aluminium , you must include pfc emissions, which will add to your direct (scope 1) emissions the gases to be monitored are carbon tetrafluoride (cf₄) and hexafluoroethane (c₂f₆) emissions from anode effects as well as fugitive emissions are to be included the method followed by the eu cbam regulation is based on the guidance "aluminium sector greenhouse gas protocol" published by the international aluminium institute (iai) click equations to view the equations used to calculate pfc emissions right click on the screen and select cbam > production process select any good under the aggregated goods category of unwrought aluminium select primary (electrolytic) smelting as the production method select the pfc emissions method two different methods are allowed the slope method and the overvoltage method which method you want to apply depends on your installation's process control equipment select the technology when you select a technology, the emission factors for that technology will be pre filled these emission factors are provided in annex iii, b 7 of the cbam implementing regulation a recommended improvement is to use installation specific emission factors for cf4 and c2f6, but you can rely on the standard ones in the meantime input the anode effect minutes / cell day ( aem ) aem (anode effect minutes) is a measure of the duration and frequency of anode effects in an aluminum smelting process it is calculated using the following formula aem = frequency of anode effects x average duration frequency of anode effects = number of anode effects per cell per day average duration = average duration of anode effects in minutes per occurrence click next view your pfc emissions after clicking next , the pfc emissions will be automatically added to the production process emissions the calculation takes into account the global warming potentials d in the eu cbam q\&a docid\ d2zsuoqnhqioqfue5yqpu section