42Emissions from composting processes

42  Emissions from composting processes

 (1) The emissions from composting processes used by a waste treatment facility or unit during a reporting period, in tonnes CO2‑e, are worked out using:

 (a) if open windrow composting, or enclosed composting technology that includes open windrow composting, is used during the reporting period—sub‑method 1 in subsection (6); or

 (b) if enclosed composting technology that does not include open windrow composting is used during the reporting period—subject to subsections (2) to (5) and section 62, either:

 (i) sub‑method 1 in subsection (6); or

 (ii) sub‑method 2 in subsection (7).

Note 1: Sub‑method 1 uses default emissions factors to calculate emissions and sub‑method 2 uses direct measurement to calculate emissions.

Note 2: If, under subsection (5), sub‑method 2 must be used to calculate the emissions but the project proponent fails to monitor the parameter DMCompost,j,f as required by the monitoring requirements, the emissions are to be worked out in accordance with section 62.

 (2) If sub‑method 1 is used to work out the emissions of methane for a reporting period, that sub‑method must also be used to calculate the emissions of nitrous oxide for the reporting period.

 (3) Sub‑method 2 may only be used to work out the emissions for a reporting period if the parameter DMCompost,j,f is monitored as required by section 60 during the reporting period.

 (4) If sub‑method 2 is used to work out the emissions of nitrous oxide for a reporting period, that sub‑method must also be used to work out the emissions of methane for the reporting period.

 (5) If sub‑method 2 is used to work out the emissions of a greenhouse gas type (whether methane or nitrous oxide) for a reporting period, that sub‑method must be used to calculate the emissions of that greenhouse gas type for all subsequent reporting periods.

 (6) The emissions from composting processes used by a waste treatment facility or unit during the reporting period, in tonnes CO2‑e, are worked out using the formula (equation 15):

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ECompost,f means the emissions from composting processes used by waste treatment facility or unit f during the reporting period, in tonnes CO2‑e, being methane or nitrous oxide.

QCompost,f means the quantity of eligible organic material composted by waste treatment facility or unit f during the reporting period, in tonnes, worked out in accordance with the monitoring requirements.

EFCompost,j means the emission factor, in tonnes CO2‑e, mentioned in subsection 5.22(2) of the NGER (Measurement) Determination for greenhouse gas j and the composting process.