ANNEX VIIIMeasurement-based methodologies (Article 41)

1.Tier definitions for measurement-based methodologies

Measurement-based methodologies shall be approved in accordance with tiers with the following maximum permissible uncertainties for the annual average hourly emissions calculated in accordance with Equation 2 set out in section 3 of this Annex.

Table 1Tiers for CEMS (maximum permissible uncertainty for each tier)

Tier 1

Tier 2

Tier 3

Tier 4

CO2 emission sources

± 10 %

± 7,5 %

± 5 %

± 2,5 %

N2O emission sources

± 10 %

± 7,5 %

± 5 %

N.A.

CO2 transfer

± 10 %

± 7,5 %

± 5 %

± 2,5 %