5.2. Scope 2 Emissions 5.2.1. Purchased Electricity
Scope 2 emissions were calculated following the location-based method outlined in Chapter 7 of NGER Measurement Determination (NGER, 2008). This method estimates emissions based on an emission factor associated with the electricity grid from which electricity is being purchased. The associated equation is: 𝑌𝑌 = 𝑄𝑄 × 𝐸𝐸𝐸𝐸 1000 where: 𝒀𝒀 is the Scope 2 emissions measured in CO2-e tonnes. 𝑸𝑸 froismththeeqoupaenrtaittyioonf oefletchterifcaictiyliptyurmcheaassuedreodrianckqiuloirweadtftrhoomurths.e electricity grid during the year and consumed 𝑬𝑬𝑬𝑬 S t a ties ot hr eTeS rcroipt oer2y lioncwa thi oi cnh- bt ha seecdo enms uims spi ot ni ofna cotcocru, ri ns aksi l omgerna mt i osnoefdCiOn2P-aeret m6 ios fs iSocnhsepdeurl ek1i l.o w a t t h o u r, f o r t h e Projected emission factors from 2025 to 2040 for Queensland’s electricity grid were sourced from Australia’s emission projections 2024 (DCCEEW, 2024) and are shown in Table 5. These emission factors are based on the following assumptions: • Emission factors are for the baseline scenario, in which emissions in 2035 are projected to more than halve (decline by 51%) from 2005 levels; • Electricity emissions are estimated to be 153 Mt CO 2 -e in 2024 and are projected to decrease by 62% to 59 Mt CO 2 -e in 2030; and • The projections account for public closure announcements and state commitments including: Eraring power station closing in 2027; agreements between the Victorian Government and the owners of Yallourn and Loy Yang A Power station regarding their closures; Western Australia’s commitment to close publicly owned power stations, Collie and Muja D, by 2030; and conversion of all publicly owned coal-fired power stations in Queensland to clean energy hubs by 2035.
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