Document ID: chunk:federal_register_of_legislation:F2022C00226:reg:23
Version: federal_register_of_legislation:F2022C00226
Segment Type: reg
Provision Reference: reg 23
Character Range: 74677–76354

23  Gross abatement amount for a project treatment facility

       (1)  The gross abatement amount for project treatment facility h for a reporting period, GAconversion, h (in tonnes CO2‑e), is worked out using the formula:
  Equation 3

       where:

       γ is the factor, used in Part 5.3 of the NGER (Measurement) Determination, that converts cubic metres of methane to tonnes CO2‑e at standard conditions.

            Note: In 2022, γ was 6.784 x 10-4 x 28.

       MA (methane avoided) is the volume of methane avoided in the project treatment facility by diversion of material that includes volatile solids during the reporting period, calculated using equation 7 (section 25).

       i is:
           (a) a combustion device of project treatment facility h; or
           (b) subject to subsection (2), a biogas upgrading system of a project biomethane facility.

       MCh, i (methane combusted) is the volume of methane from project treatment facility h destroyed by combustion device i, or taken to have been destroyed by biogas upgrading system i, during the reporting period, calculated using equation 4 or equation 5 (section 24).
       (2)  For subsection (1), if the project works out its net conversion abatement for a reporting period under section 21 using Method 2, i is a combustion device of the project treatment facility h.

            Note: This prevents biogas sent from project treatment facilities to biogas upgrading systems from being included when working out gross abatement under equation 3. This, in turn, prevents double-counting of conversion abatement from biomethane, which under Method 2 is already accounted for in equation 1B.