Equity Footprint.

The Equity Footprint sets out AGL’s share (by percentage investment level) of the emissions from our fully or partially owned entities.  The Equity Footprint indicates to AGL shareholders the greenhouse gas impacts associated with their investment.

The Equity Footprint broadly meets the requirements of the WBSCD/WRI Greenhouse Gas Protocol’s ‘Equity Share Approach’ to greenhouse accounting.

The Equity Footprint is split between Australian and Overseas facilities as described below:

Australian Equity Footprint


The Australian Equity Footprint includes the following interests:

  • AGL own a 50% equity interest in the ActewAGL Retail partnership which includes the operation of the retail electricity, gas and water businesses of ActewAGL.  Minimal greenhouse emissions result from office based activities for the ActewAGL partnership.  Emissions during 2006/07 were presented in the AGL Sustainability Report 2007 for all ActewAGL operations.  The 2006/07 emissions presented in this report have been recalculated to account for only the ActewAGL Retail Partnership.
  • Elgas is an LPG retailer of which AGL owns a 50% equity interest.  Greenhouse gas emissions occur as a result of the vehicle fuel and electricity consumption, but do not include fugitive emissions from LPG handling. Greenhouse gas emissions for fuel and electricity consumption have remained relatively unchanged from 2006/2007. Since the financial year close AGL has divested it’s stake in Elgas.
  • Loy Yang Power produced a total of 18,200,837 tCO2e11 emissions in 2007.  The greenhouse gas intensity of the electricity produced by Loy Yang Power in the 2007 calendar year was 1.206 kg CO2e/kWh, which is lower that the Victoria electricity market average.
  • AlintaAGL was a joint venture between Alinta and AGL in Western Australia.  AGL sold its interest in AlintaAGL in December 2007. Data was not available to AGL on AlintaAGL’s 2007/08 greenhouse gas emissions at the time of preparing the report.
  • Moranbah Gas Project (MGP) – The MGP, a joint venture between AGL and Arrow Energy, produces coal seam gas from the Bowen Basin in Queensland to supply gas to the Queensland market including AGL-owned 12 MW Moranbah Power Station. Greenhouse gas emissions are generated mainly from the coal seam gas combusted in the processing and compression of gas prior to sale and from gas-fired electricity generation used by the project.  Emissions have been estimated using data from 2006/07. 
  • Data includes emissions for the North Queensland Gas Pipeline 392 km pipeline between Moranbah and Townsville and the Moranbah gas processing facility.  AGL entered the North Queensland Energy JV in December 2007 and the pipeline asset was subsequently sold in July 2008.  The emissions represent an estimate for emissions from the NQGP for the full financial year.
  • Queensland Gas Company – Queensland Gas Company (QGC) is a major coal seam gas producer in the Surat Basin, Queensland. Emissions result mainly from the coal seam gas fuel combusted in the processing and compression of gas prior to sale.  AGL’s average equity interest in QGC over the period was 27%12.
  • AGL also has equity interests in the Hunter Gas Project, CSM Energy and the Macarthur Wind Farm.  During the period AGL estimates that these projects did not have significant enough emissions to be considered as material within the AGL Equity Footprint.

Overseas Equity Footprint

Name

Equity Interest

2007/08 (kt CO2e)

2006/07 (kt CO2e)

PNG Upstream Project

7.9 to 37.9%

373

498

 

The Overseas Equity Footprint has includes the following interests:

  • Upstream PNG - AGL has joint venture interests in two oil field production development licences (11.9 per cent and 66.7 per cent) located in the Southern Highlands of PNG. The oil fields are also associated with substantial gas reserves which are currently not developed for commercial sales. Most of the gas produced with the oil is reinjected back into the petroleum reservoir, while some is consumed as fuel and flare. The greenhouse gas emissions arising from AGL's share of oil production has been estimated from the operator’s (Oil Search) records over the 2007 calendar year. The records show a reduction in the emission of CO2e over the period due to reduced unplanned process interruptions which resulted in decrease in the amount of gas flared.
  • GasValpo - AGL sold its interest in GasValpo in May 2008.  Gas Valpo owns and operates a total of 497 km of gas networks in Chile.  Data was not available to AGL on GasValpo’s greenhouse gas emissions at the time of preparing the report.


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11 Loy Yang Power Sustainability Report 2007, page 38.
12 AGL estimated emissions associated with QGC operations based upon published sales figures and standard emission factors from the NGA Factors, January 2008.