41Digestate emissions—treated in open lagoon

41 Digestate emissions—treated in open lagoon

The emissions from digestate from project treatment facility t treated in an open lagoon, EDig,t,Lag (in tonnes CO2-e), is worked out using the formula (equation 20):

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q is an open lagoon that receives volatile solids from project treatment facility t.

EDig,t,Lag means the emissions from digestate from project treatment facility t treated in open lagoon q, in tonnes CO2-e.

VSDig,t means the volatile solids discharged from an anaerobic digester at project treatment facility t into open lagoon q, in tonnes, worked out in accordance with the monitoring requirements.

Note: Determination of VSDig,t,q requires the determination of parameter QDig,t,n for the digestate from treatment facility t where n is treatment in an open lagoon: see items 8 and 12 of the table in subsection 45(1).

MMax,Dig,t means the maximum methane producing capacity of the digestate from project treatment facility t, sent to open lagoon q, in tonnes of methane per tonne of volatile solids, worked out in accordance with the monitoring requirements.

MCFLag means the methane correction factor for open lagoon q, set out in Part 5.3 of the NGER (Measurement) Determination.

GWPCH4 means the global warming potential value for methane, set out in regulation 2.02 of the National Greenhouse and Energy Reporting Regulation 2008.

Division 3—Working out displacement abatement

Subdivision 1—Overview of gases

41A Overview of gases accounted for in displacement abatement calculations

The following table provides an overview of the greenhouse gas abatement and emissions that are relevant to working out the carbon dioxide equivalent net abatement amount for a wastewater project that involves biomethane production

<table cellspacing="0" cellpadding="0" style="width:86.36%; margin-left:56.7pt; border-collapse:collapse"><thead><tr><td colspan="4" style="border-top:1.5pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span style="font-weight:bold">Greenhouse gases and emissions sources</span></p></td></tr><tr><td style="width:9.14%; border-top:0.75pt solid #000000; border-bottom:1.5pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span style="font-weight:bold">Item</span></p></td><td style="width:20.5%; border-top:0.75pt solid #000000; border-bottom:1.5pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; margin-left:4pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span style="font-weight:bold">Relevant calculation</span></p></td><td style="width:47.38%; border-top:0.75pt solid #000000; border-bottom:1.5pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span style="font-weight:bold">Emissions source</span></p></td><td style="width:22.98%; border-top:0.75pt solid #000000; border-bottom:1.5pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; margin-left:1.35pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span style="font-weight:bold">Greenhouse gas</span></p></td></tr></thead><tbody><tr><td style="width:9.14%; border-top:1.5pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>1</span></p></td><td style="width:20.5%; border-top:1.5pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; margin-left:4pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>Gross abatement amounts</span></p></td><td style="width:47.38%; border-top:1.5pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>The carbon dioxide emissions avoided by displacement of natural gas combustion by biomethane produced by the project.</span></p></td><td style="width:22.98%; border-top:1.5pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; margin-left:1.35pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>Carbon dioxide (CO</span><span style="font-size:7.33pt; vertical-align:sub">2</span><span>)</span></p></td></tr><tr><td style="width:9.14%; border-top:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; margin-left:1.55pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>2</span></p></td><td style="width:20.5%; border-top:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; margin-left:4pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>Project emissions</span></p></td><td style="width:47.38%; border-top:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>Fuel consumption attributable to biogas upgrading at project biomethane facilities.</span></p></td><td style="width:22.98%; border-top:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-left:1.35pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>Carbon dioxide (CO</span><span style="font-size:7.33pt; vertical-align:sub">2</span><span>)</span><br><span>Methane (CH</span><span style="font-size:7.33pt; vertical-align:sub">4</span><span>)</span></p><p style="margin-left:1.35pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>Nitrous oxide (N</span><span style="font-size:7.33pt; vertical-align:sub">2</span><span>O)</span></p></td></tr><tr><td style="width:9.14%; border-top:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; margin-left:1.55pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>3</span></p></td><td style="width:20.5%; border-top:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; margin-left:4pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>Project emissions</span></p></td><td style="width:47.38%; border-top:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-top:4pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>Consumption of purchased electricity attributable to biogas upgrading at project biomethane facilities.</span></p></td><td style="width:22.98%; border-top:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.4pt; padding-left:5.4pt; vertical-align:top"><p style="margin-left:1.35pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>Carbon dioxide (CO</span><span style="font-size:7.33pt; vertical-align:sub">2</span><span>)</span><br><span>Methane (CH</span><span style="font-size:7.33pt; vertical-align:sub">4</span><span>)</span></p><p style="margin-top:4pt; margin-left:1.35pt; page-break-inside:avoid; page-break-after:avoid; line-height:normal"><span>Nitrous oxide (N</span><span style="font-size:7.33pt; vertical-align:sub">2</span><span>O)</span></p></td></tr></tbody></table> ```