65Determining the quantity of eligible biogas from a biogas source

65  Determining the quantity of eligible biogas from a biogas source

 (1) The volume of eligible biogas sent to project biomethane facility f from biogas source facility g during a reporting period (QBG, El, g) in cubic metres, is worked out:

 (a) if it is possible to measure QBG, El, g in accordance with the monitoring requirements—in accordance with the monitoring requirements; or

 (b) otherwise—in accordance with subsection (2).

Note: Measurement of QBG, El, g is possible if all biogas from a biogas source facility is eligible, or if eligible biogas is physically apportioned in a way that permits direct measurement in accordance with the monitoring requirements.

 (2) For the purposes of paragraph (1)(b), the volume of eligible biogas sent to project biomethane facility f from biogas source facility g during the reporting period, in cubic metres, is worked out using the following formula:

 

| start formula Q subscript BG comma El comma g equals EB subscript g times Q subscript BG comma g | Equation 28 |

 

 

| EB subscript g | means the proportion of biogas sent to project biomethane facility f from biogas source facility g during the reporting period that is eligible biogas, expressed as a fraction, worked out in accordance with subsection (3). | | Q subscript BG comma g | means the volume of biogas sent to project biomethane facility f from biogas source facility g during the reporting period, in cubic metres, worked out in accordance with the monitoring requirements. |

 (3) For the purposes of subsection (2), an accurate and conservative value for EBg must be determined, based on data and calculations that are auditable and verifiable, as follows:

 (a) by working out the proportion of eligible biogas waste to biogas waste treated to produce biogas from biogas source facility g for a reporting period, by methane-producing capacity or by mass; 

 (b) by using another approach that can reasonably be expected to provide a fraction that accurately reflects the proportion of eligible biogas for biogas source facility g for a reporting period.

 (4) If it is not possible to work out the volume of eligible biogas sent to project biomethane facility f from biogas source facility g during the reporting period, in cubic metres, in accordance with subsection (1), QBG, El, g is taken to be zero for the reporting period.