Turn the raw legal text into a practical explanation grounded in Carbon Credits (Carbon Farming Initiative—Reducing Methane Emissions from Landfill Gas) Methodology Determination 2025.
The project proponent for an eligible offsets project must monitor and determine a parameter mentioned in an item of the following table in accordance with the instructions set out in that item.
Monitored parameters
Parameter Description Unit Measurement procedure (including frequency as required) Determination of parameter from measurements
1 QEn, h Energy content of the landfill gas sent to combustion device h Gigajoules Estimated under section 6.5 or Division 2.3.6 of the NGER (Measurement) Determination using measurement criterion AAA. Cumulative value for reporting period.
2 Oh, a Operation of combustion device h during hour a 1 or 0 Operation for each minute is to be determined in accordance with manufacturer’s specifications.If the device operates according to manufacturer’s specifications for the entire hour, Oh, a = 1. Otherwise, Oh, a = 0.All measuring equipment must be used in accordance with appropriate measuring requirements. For the purposes of calculating Mcom, h in equation 11, the value of Oh, a, determined for an hour based on the operation of the combustion device, must be paired to the cumulative value of Msent, h for the same hour.
3 QLFG, h Landfill gas sent to combustion device or biogas upgrading system h Cubic metres Estimated under Division 2.3.6 of the NGER (Measurement) Determination using measurement criterion AAA.Frequency—continuous. For the purposes of equation 11, cumulative values for a time interval not greater than one hour must be paired to measurements of WLFG, CH4 for that time interval.Otherwise, the measurements must be paired to measurements of WLFG, CH4 for the same measurement interval.
4 QEG, h Electricity (supplied to the grid or used for the project) generated by internal combustion engine h Megawatt hour Estimated under Part 6.1 of the NGER (Measurement) Determination.Measure only the electricity produced from the combustion of landfill gas (not from the combustion of other fuel types). Cumulative value for the reporting period.
5 QF, LFG-BM, i Amount of fuel type i used for landfill gas capture for biomethane activities Tonnes, kilolitres, cubic metres or gigajoules Project proponent may choose from the following:(a) estimated in accordance with Division 2.2.5, 2.3.6 or 2.4.6 of the NGER (Measurement) Determination (as appropriate to the fuel type);(b) evidenced by invoices, contractual arrangements or industry metering records.Measure only the fuel used to operate the project in relation to landfill gas capture for biomethane activities.Frequency—continuous. Cumulative value for the reporting period.
6 QEP, LFG-BM Amount of purchased electricity used for landfill gas capture for biomethane activities Kilowatt hours Evidenced by invoices, contractual arrangements or industry metering records.If QEP, LFG-BM is measured in gigajoules, the number of kilowatt hours must be calculated by dividing the amount of gigajoules by the conversion factor of 0.0036.Measure only the electricity used to operate the project in relation to landfill gas capture for biomethane activities.Frequency—continuous. Cumulative value for the reporting period.
Section 78 - Carbon Credits (Carbon Farming Initiative—Reducing Methane Emissions from Landfill Gas) Methodology Determination 2025 - Requirements to monitor certain parameters | Zoe
7 WLFG, CH4 Fraction of the volume of landfill gas that is methane Fraction Estimated under Division 2.3.6 of the NGER (Measurement) Determination.In the case of a flaring only project for which the project landfill is open landfill, the continuous measurement device used to measure the parameter must be cross-referenced once a month with a field-calibrated handheld gas analyser, paired every calendar month with the volume of landfill gas sent to combustion device or biogas upgrading system h, measured at the same conditions as QLFG, h.If the methane measurements recorded by the continuous measurement device and the field-calibrated handheld gas analyser differ by >4%, the continuous measurement device must be reset in-situ with reference gas (in accordance with manufacturer’s specifications), and the cross-reference process repeated.In the case of a flaring only project for which the project landfill is closed landfill, the continuous measurement device used to measure the parameter must be paired every calendar month with the volume of landfill gas sent to combustion device or biogas upgrading system h measured at the same conditions as QLFG, h.In any other case, the frequency of the measurement of the parameter is continuous. The parameter must be measured at the same conditions as QLFG, h. For the purposes of equation 11, average values for a time interval not greater than 1 hour must be paired to measurements of QLFG, h for the time interval.Otherwise, the measurements must be paired to measurements of QLFG, h for the same measurement interval.
8 QBM, k Volume of biomethane sent out by biogas upgrading system k m3 Estimated under Division 2.3.6 of the NGER (Measurement) Determination using measurement criterion AAA.Frequency—continuous. Cumulative value for the reporting period.QBM, k is to be measured at a point that is after the biomethane leaves the biogas upgrading system and at which the biomethane is suitable for combustion as a natural gas substitute.
9 WBM, CH4, k Proportion of the volume of biomethane from biogas upgrading system k, QBM, k, that is methane Fraction Measured:(a) using an inline gas analyser that analyses gas composition at a point after biogas upgrading is complete; and(b) to an accuracy of +/ 3% absolute; and(c) in accordance with the instrument manufacturer’s specifications and the relevant Australian and New Zealand standards. The measurements must be paired to measurements of QBM, k for the same measurement interval.
10 QBG, g Volume of biogas sent to a project biomethane facility from biogas source facility g m3 Estimated under Division 2.3.6 of the NGER (Measurement) Determination using measurement criterion AAA.Frequency—continuous. Cumulative value for the reporting period.
11 QBG, El, g Volume of eligible biogas sent to a project biomethane facility from biogas source facility g m3 Estimated under Division 2.3.6 of the NGER (Measurement) Determination using measurement criterion AAA.Frequency—continuous. QBG, El,g must only be measured in accordance with this item if it is possible to directly measure the volume of eligible biogas sent to a project biomethane facility from biogas source facility g.Cumulative value for the reporting period.
12 QF, displacement, f, i Quantity of each fuel type i used by project biomethane facility f Either:
t (for solid fuel); or
m3(for gas fuel); or
kL (for liquid fuel); or
GJ (a) monitored in accordance with section 2.25, 2.36 or Division 2.4.6 of the NGER (Measurement) Determination (as applicable to the fuel type); or(b) evidenced by invoices, contractual arrangements or industry metering records.Frequency—continuous. Cumulative value for the reporting period.
13 QPE, displacement, f Quantity of electricity purchased by project biomethane facility f kWh or GJ Evidenced by invoices, contractual arrangements or industry metering records.If EPE, displacement, f is measured in gigajoules, the quantity of kilowatt hours must be calculated by dividing the amount of gigajoules by the conversion factor of 0.0036.Frequency—continuous. Cumulative value for the reporting period.
Unless otherwise specified in the table in subsection (1), any equipment or device used to monitor a parameter must be calibrated by an accredited third-party technician at intervals, and using methods, that are in accordance with the manufacturer’s specifications.
In this section:
appropriate measuring requirements, in relation to a measurement or estimate, means requirements that are consistent with:
requirements that apply in relation to similar measurements or estimates under the NGER (Measurement) Determination; or
relevant standards and other requirements under the National Measurement Act 1960.