Division 10.1.5 Attribution of emission for the production and use of waste gases

The emissions from waste gases are split into two parts, except where they are used in the same product benchmark sub-installation where they are produced, as follows:

1. (a)

   An amount of emissions assigned to the production of the waste gas is attributed under the product benchmark sub-installation where the waste gas is produced.

   This amount is calculated as follows:

   EmWG = VWG · NCVWG · (EFWG – EFNG · Corrn )

   (Equation 17)

   Where Em_WG is the amount of emissions assigned to the production of the waste gas, V_WG is the volume of waste gas produced expressed as Nm³ or t, NCV_WG is the net calorific value of the waste gas expressed as TJ/Nm³ or TJ/t, EF_WG is the emission factor of the waste gas expressed as t CO₂/TJ, EF_NG is the emission factor of natural gas (56,1 t CO₂/TJ), and Corr_η is a factor that accounts for the difference in efficiencies between the use of waste gas and the use of the reference fuel natural gas. The default value of this factor is equal to 0,667.

2. (b)

   An amount of emissions assigned to the consumption of the waste gas is attributed to the product benchmark sub-installation, heat benchmark sub-installation, district heating sub-installation or fuel benchmark sub-installation, where it is consumed. This amount is determined by multiplying the amount and calorific value of the waste gas with the value of the heat or fuel benchmark, as applicable.