no longer be detected.
The competent authority shall approve and allow the use of other methods for the quantification of emissions or release of CO2 into the water column from leakages where the operator can show to the satisfaction of the competent authority that such methods lead to a higher accuracy than the methodology set out in this subsection.
The operator shall quantify the amount of emissions leaked from the storage complex for each of the leakage events with a maximum overall uncertainty over the reporting period of 7,5 %. Where the overall uncertainty of the applied quantification methodology exceeds 7,5 %, each operator shall apply an adjustment, as follows:
CO2,Reported [t CO2] = CO2,Quantified [t CO2] * (1 + (UncertaintySystem [%]/100) - 0,075)
Where:
CO2,Reported= the amount of CO2 to be included in the annual emission report with regards to the leakage event in question;
CO2,Quantified= the amount of CO2 determined through the used quantification methodology for the leakage event in question;
UncertaintySystem= the level of uncertainty associated with the quantification methodology used for the leakage event in question.
(1) International Aluminium Institute; The Aluminium Sector Greenhouse Gas Protocol; October 2006; US Environmental Protection Agency and International Aluminium Institute; Protocol for Measurement of Tetrafluoromethane (CF4) and Hexafluoroethane (C2F6) Emissions from Primary Aluminum Production; April 2008.
ANNEX V
Minimum tier requirements for calculation-based methodologies involving Category A installations and calculation factors for commercial standard fuels used by Category B and C installations (Article 26(1))
Table 1
Minimum tiers to be applied for calculation-based methodologies in the case of category A installations and in the case of calculation factors for commercial standard fuels for all installations in accordance with point (a) of Article 26(1); ('n.a.' means 'not applicable')
Activity/Source stream type
Activity data
Emission factor
Composition data (Carbon content)
Oxidation factor
Conversion factor
Amount of fuel or material
Net calorific value
Combustion of fuels
Commercial standard fuels
2a/2b
2a/2b
n.a.
n.a.
Other gaseous and liquid fuels
2a/2b
2a/2b
n.a.
n.a.
Solid fuels
2a/2b
2a/2b
n.a.
n.a.
Mass balance methodology for Gas Processing Terminals
n.a.
n.a.
n.a.
n.a.
Flares
n.a.
n.a.
n.a.
Scrubbing (carbonate)
n.a.
n.a.
n.a.
n.a.
Scrubbing (gypsum)
n.a.
n.a.
n.a.
n.a.
Refining of mineral oil
Catalytic cracker regeneration
n.a.
n.a.
n.a.
n.a.
n.a.
Hydrogen production
n.a.
n.a.
n.a.
n.a.
Production of coke
Mass balance
n.a.
n.a.
n.a.
n.a.
Fuel as process input
n.a.
n.a.
n.a.
Metal ore roasting and sintering
Mass balance
n.a.
n.a.
n.a.
n.a.
Carbonate input
n.a.
n.a.
n.a.
Production of iron and steel
Mass balance
n.a.
n.a.
n.a.
n.a.
Fuel as process input
2a/2b
n.a.
n.a.
n.a.
Production or processing of ferrous and non-ferrous metals, including secondary aluminium
Mass balance
n.a.
n.a.
n.a.
n.a.
Process emissions
n.a.
n.a.
n.a.
Primary aluminium production
Mass balance for CO2 emissions
n.a.
n.a.
n.a.
n.a.
PFC emissions (slope method)
n.a.
n.a.
n.a.
n.a.
PFC emissions (overvoltage method)
n.a.
n.a.
n.a.
n.a.
Production of cement clinker
Kiln input based
n.a.
n.a.
n.a.
Clinker output
n.a.
n.a.
n.a.
CKD
n.a.
n.a.
n.a.