Section 43 - Carbon Credits (Carbon Farming Initiative—Reducing Methane Emissions from Landfill Gas) Methodology Determination 2025 - Methane sent to combustion device or biogas upgrading system

43Methane sent to combustion device or biogas upgrading system

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43 Methane sent to combustion device or biogas upgrading system

(1) The amount of methane sent to a combustion device h or biogas upgrading system h during a reporting period may be worked out using:

(a) for a biogas upgrading system or combustion device that is not an internal combustion engine—equation 12; or

(b) for a combustion device that is not an internal combustion engine—equation 13; or

Method 1—using landfill gas sent to combustion device or biogas upgrading system

(2) Using the volume of the landfill gas sent to the combustion device or biogas upgrading system (QLFG,h), the methane sent to the combustion device or biogas upgrading system during the reporting period is worked out using the following formula:

| start formula M subscript Sent comma h equals Q subscript LFG comma h times W subscript LFG comma CH4 comma h end formula | Equation 12 |

| M subscript sent comma h | means the methane sent to the combustion device or biogas upgrading system h during the period, in cubic metres. | | Q subscript LFG comma h | means the landfill gas sent to the combustion device or biogas upgrading system h during the period, in cubic metres, worked out in accordance with the monitoring requirements. | | W subscript LFG comma CH4 comma h end formula | means the proportion of the landfill gas sent to combustion device or biogas upgrading system h that is methane, worked out in accordance with the monitoring requirements, unless subsection (3) applies. |

(3) In the case of a flaring only project for which the project landfill is closed landfill, the project proponent for the project may elect to assign the value of 0.30 to WLFG, CH4,h.

Method 2—using energy content of landfill gas sent to combustion device

(4) Using the energy content of the landfill gas sent to the combustion device (QEn,h), the amount of methane sent to the combustion device during the period is worked out using the following formula:

| start formula M subscript Sent comma h equals start fraction Q subscript En comma h over EC subscript LFG end fraction end formula | Equation 13 |