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Guide · Energy efficiency

Climate reporting for retailers: what store energy data does AASB S2 need?

5 min read · By Nextage Group · Published · Reviewed

LED strip lighting fitted along retail shelving

A retailer in Group 2 of Australia's mandatory climate reporting is caught from its first financial year beginning on or after 1 July 2026. For a June year end, the first report covers 1 July 2026 to 30 June 2027. Scope 1 and Scope 2 emissions are in that first report. For a store fleet, Scope 2 is mostly the electricity each store buys, worked out from kilowatt hours and a state emission factor, so the job now is a clean electricity record for every store.

Who has to report, and from when?

A company that prepares an annual financial report under the Corporations Act must also prepare a sustainability report once it meets two of three size tests for its group, counting the entities it controls:

GroupRevenueGross assetsEmployeesFinancial years beginning on or after
Group 1$500m or more$1bn or more500 or more1 January 2025
Group 2$200m or more$500m or more250 or more1 July 2026
Group 3$50m or more$25m or more100 or more1 July 2027

Registered reporters under the National Greenhouse and Energy Reporting Act are caught too, as are some large superannuation funds and managed investment schemes. A Group 3 company whose directors find no material climate risks or opportunities can lodge a statement saying so, but it still has to do the assessment and keep the records behind it.

A 2026 to 2027 Budget proposal would lift the Group 3 revenue and asset tests. It had not been legislated when this page was checked, so the figures above still apply.

What goes in the first report?

Climate related financial disclosures under AASB S2, lodged with the annual financial report. The emissions part is split three ways. In store terms:

ScopeWhat it coversAt a store
Scope 1Direct emissions from sources the company owns or controlsGas for heating or cooking, diesel in a generator, and refrigerant that leaks from cases, cool rooms and air conditioning
Scope 2Purchased electricity, heating and coolingThe power bill: lighting, refrigeration, air conditioning, screens
Scope 3Everything else in the value chainGoods bought for sale, freight, contractors, waste

Scope 1 and Scope 2 are reported from the first year. AASB S2 gives relief from Scope 3 in the first annual reporting period. Statements about Scope 3, scenario analysis and transition plans also carry modified liability for financial years beginning 1 January 2025 to 31 December 2027: in that window only ASIC, or a criminal prosecution, can act on them.

How is a store's Scope 2 worked out?

The location based method multiplies the electricity used by the emission factor for that state's grid. The factors are published each year by the Department of Climate Change, Energy, the Environment and Water in the National Greenhouse Accounts Factors.

Scope 2 in tonnes of CO2e = kilowatt hours used x state factor in kg CO2e per kWh / 1,000.

ASIC's own worked example, from its educational module and using the 2025 factors:

SiteElectricity used2025 factorScope 2
Two sites in NSW2,000,000 kWh0.64 kg CO2e/kWh1,280 t CO2e
One site in Queensland500,000 kWh0.67 kg CO2e/kWh335 t CO2e

A company that buys renewable power under contract can also report on the market based method. GreenPower carries a factor of zero. Electricity not covered by a contract uses the national residual mix factor, 0.81 kg CO2e per kWh in the 2025 factors, which is higher than the grid average.

Where store energy data usually breaks

  • Stores in a shopping centre on an embedded network or a recharge, where the retailer sees a share of a bill and never a meter read
  • Estimated bills, which carry through to the report unless they are replaced by actual reads
  • Stores opened, closed or refitted part way through the year
  • Refrigeration and air conditioning with no register of gas type and charge, so leaks cannot be counted in Scope 1

Each of those is fixable before the first reporting year closes, and much harder to fix afterwards.

What cuts Scope 2 at a store?

The large electrical loads in a store are refrigeration, lighting and air conditioning, so that is where reductions come from:

  • LED lighting in place of fluorescent tubes, which are also being phased out of supply
  • Aerofoils on open refrigerated cases, which keep more of the cold air in the case
  • Air curtains on cool room doors that stand open for deliveries
  • Air conditioning serviced to a schedule, with filters and coils kept clean

Every reduction should be evidenced per store, with readings before and after, because the report has to stand up to assurance. Nextage runs this as a program: an audit that finds the load, the works that cut it, and before and after readings per store where the retailer wants the saving shown.

FAQ

Questions people ask

When does Group 2 climate reporting start?

For financial years beginning on or after 1 July 2026. A company with a June year end reports first on 1 July 2026 to 30 June 2027.

Do retailers have to report Scope 3 emissions in the first year?

No. AASB S2 gives relief from Scope 3 in the first annual reporting period. Scope 1 and Scope 2 are required from the start.

How do you calculate Scope 2 emissions for a store?

Multiply the store's electricity use in kilowatt hours by its state's emission factor from the National Greenhouse Accounts Factors, then divide by 1,000 to get tonnes of CO2e.

Are refrigerant leaks Scope 1 or Scope 2?

Scope 1. Refrigerant that escapes from cases, cool rooms and air conditioning is a direct emission from equipment the company controls.

Talk it through with someone who does this.

Call 1300 075 075, or tell us about the stores involved.

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