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Destruction of methane generated from manure in piggeries

15 February 2017
Is the method for the destruction of methane generated from manure in piggeries suitable for your business?
  • Do you want to conduct an Emissions Reduction Fund project at a piggery?
  • Are you willing to install equipment to cover a new or existing piggery waste treatment lagoon?
  • Are you willing to install equipment to collect and combust gas from the covered lagoon?

If you have answered yes to these questions, the Carbon Credits (Carbon Farming Initiative) (Destruction of Methane Generated from Manure in Piggeries – 1.1) Methodology Determination 2013 (the method) may be suitable for your business. Read on for further information including eligibility and compliance details.

The method sets out the rules for projects that reduce the release of methane generated from manure in piggeries.

A project using this method requires the installation of new covered lagoons or the covering of existing uncovered treatment lagoons, and installing and operating gas capture and combustion equipment. Biogas is collected from the covered lagoons and the methane component of the biogas is combusted using flares, an electricity generation system, and/or a gas boiler. A project can have a significant abatement effect as the methane is combusted and converted into carbon dioxide which has a much lower global warming potential than methane.

The method was varied in June 2015. The previous version of the method is closed for new projects.

Method variations

Section 114 of the Carbon Credits (Carbon Farming Ini​tiative) Act 2011 (the Act)​ ​allows for methods to be revised and varied. This is to ensure methods continue to operate as originally intended. Variations to methods are developed and drafted by the Department of the Environment and Energy. Information on draft methods and method variations is available on the Department of the Environment and Energy’s website.

The Clean Energy Regulator recommends making yourself familiar with proposed method variations relevant to your project should they arise, and how any changes between the original method and the varied method may affect your project plan.

Legislative requirements

You must read and understand the method and other legislative requirements to conduct an Emissions Reduction Fund project using the method and earn Australian carbon credit units (ACCUs). This includes:

Tools and Resources​

Regulatory guidance

Quick reference guide to method for the destruction of methane generated from manure in piggeries.

This quick reference guide provides basic information about eligibility criteria and obligations that must be met to earn ACCUs from a project using the Carbon Credits (Carbon Farming Initiative) (Destruction of Methane Generated from Manure in Piggeries – 1.1) Methodology Determination 2013 (the method). It includes specific links to the relevant legislation but should not be viewed as an alternative to reading the full legislative requirements.

Contents

Crediting period

Seven years – The crediting period is the period of time a project can apply to claim Australian carbon credit units (ACCUs).

Eligibility requirements

There are general eligibility requirements in the Act which include:

  • newness
  • additionality and funding from other government programs, and
  • legal right.

There are other eligibility requirements in the method.

Project Activities

A project using this method must be carried out at a piggery and involve the installation of equipment to do the following 3 things:

  • Cover lagoons to prevent the release of biogas containing methane;
  • Collect the gas from the covered lagoon; and
  • Combust the methane component of the biogas to convert it to carbon dioxide.

Lagoons must have a minimum depth of two metres and comply with the best practice principles for the design of effluent treatment ponds, as set out in the National Environmental Guidelines for Piggeries 2010. Effluent/waste from the operation of the piggery (to which the project relates) is the only permitted input to the lagoon.

The method allows for the use of flaring, an electricity generation system, and a gas boiler.

Use of flaring

Any flaring system used in the project must:

  • Use a type of flare designed to maintain continuous destruction of methane; and
  • Include a system that detects and records when the operation of the flare fails for more than 20 minutes.

How is abatement calculated?

The net abatement amount is calculated as the amount of methane emissions avoided as a result of the project, minus emissions from electricity and fuel used to operate the gas capture and combustion equipment.

The amount of emissions avoided is the difference between baseline emissions and project emissions. This must be calculated using the equation in section 4.6 of the method.

Monitoring requirements

In addition to the general monitoring requirements of the Act, projects must meet specific monitoring requirements in the method. These include:

  • monitoring and recording the following information:
    • herd data,
    • herd performance data,
    • piggery feed usage data, and
    • diet analysis.

You must also measure gas pressure.

The method outlines quality assurance and quality control requirements for all monitoring instruments and combustion devices.

Record-keeping requirements

In addition to the record-keeping requirements of the Act and the Rule, projects must meet the specific record-keeping requirements in the method.

The following information must be recorded and kept for general purposes:

  • all maintenance records for monitoring instruments and combustion devices;
  • logs of operating the combustion device;
  • evidence of particular corrective measures taken if monitoring instruments do not meet the required accuracy threshold; and
  • (in some circumstances) certificates form the stack testing laboratory.

Specific information must also be recorded and kept about the following matters:

  • project information
  • combustion devices
  • monitoring equipment
  • gas composition, and
  • direct and indirect measurement.

Reporting requirements

In addition to the reporting requirements of the Act and the Rule, the method also sets out the following method-specific requirements that must be included in each report. These include:

  • net greenhouse gas abatement number
  • pig numbers by class
  • quantity of methane generated under baseline conditions
  • total volume of methane sent to combustion devices
  • destruction efficiencies of combustion devices (if default values not used)
  • the number of combustion device failures that exceed 20 minutes duration and any periods where there were no records of operation
  • total amount of fuel and/or electricity used by the project, and
  • electrical efficiency from the internal combustion engine generator.

Applications for ACCUs can be made at the same time as you submit your project reports through the Client Portal using the electronic ERF Project Reporting and Crediting Application form.

Audits

All projects receive an audit schedule when the project is declared and must provide audit reports according to this schedule. A minimum of three audits will be scheduled and additional audits may be triggered. For more information on the audit requirements, see the Act, the Rule and the audit information on our website.

All non-compliance whether accidental or not or through circumstances outside your control must be reported to your auditor and rectified as soon as reasonably possible. For more information see Participant obligations.

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