(1) The emissions from electricity used for the production pathway for the batch (b), Eelec,b, in kilograms of CO2-e are worked out using the following formula:
Start formula E start subscript elec,b end subscript equals E start subscript elec,market,b end subscript plus E start subscript elec,hol,b end subscript end formula
where:
Eelec,market,b is the emissions from purchased or acquired electricity used for the production pathway for the batch (b) in kilograms of CO2-e, worked out in accordance with subsection (2).
Eelec,hol,b is the emissions from electricity generated in a CHP plant by the holder of the production profile used for the production pathway for the batch (b), in kilograms of CO2-e, worked out in accordance with subsection (7).
Supplied electricity
(2) For subsection (1), Eelec,market,b is worked out using the following formula:
Start formula E start subscript elec,market,b end subscript equals open bracket Q start subscript eligible,b end subscript minus Q start subscript rec,b end subscript close bracket times EF start subscript elec end subscript end formula
where:
Qeligible,b is the eligible quantity of electricity used for the production pathway for the batch (b) in kilowatt hours, worked out in accordance with subsection (3).
Qrec,b is the quantity of electricity used for the production pathway for the batch (b) in kilowatt hours in respect of which a Renewable Energy Certificate has been surrendered, either:
(a) if the amount worked out in accordance with subsection (4) is less than or equal to Qeligible,b—that amount; or
(b) if the amount worked out in accordance with subsection (4) is greater than Qeligible,b—Qeligible,b.
Note: If the value of Qrec,b is a negative value, the formula in subsection (2) will result in an increase in the emissions attributed to electricity supplied for the batch.
EFelec is the emission factor for the electricity used for the production pathway for the batch (b) in kilograms of CO2-e per kilowatt hour worked out in accordance with subsection (5).
(3) For subsection (2), Qeligible,b is worked out using the following formula:
Start formula Q start subscript eligible,b end subscript equals open bracket Q start subscript elec,market,b end subscript minus Q start subscript elec,ex,b end subscript close bracket times open bracket 100 % minus open bracket RPP plus JRPP close bracket close bracket plus open bracket Q start subscript elec,ex,b end subscript times open bracket 100 % minus JRPP close bracket close bracket end formula
where:
Qelec,market,b is the quantity of purchased or acquired electricity used for the production pathway for the batch (b) in kilowatt hours, monitored or measured in accordance with section 9.
Qelec,ex,b is the quantity of exempt electricity used for the production pathway for the batch (b) in kilowatt hours worked out in accordance with subsection (6).
RPP is the renewable power percentage for the calendar year in which the batch period started.
JRPP is the Jurisdictional Renewable Power Percentage as a percentage for:
(a) the State or Territory where the production profile is located; and
(b) the financial year in which the batch period started.
(4) For subsection (2), Qrec,b is worked out using the following formula:
Start formula Q start subscript rec,b end subscript equals open bracket REC start subscript surr,b end subscript minus REC start subscript hol,b end subscript close bracket times 1000 end formula
where:
RECsurr,b is the quantity of electricity used for the production pathway for the batch (b) in respect of which a Renewable Energy Certificate has been surrendered in megawatt hours.
REChol,b is the quantity of electricity generated by the holder of the production profile and used for the production pathway for the batch (b) in respect of which a Renewable Energy Certificate has been, or is expected to be, created in megawatt hours.
(5) For subsection (2), EFelec is worked out using the following formula:
Note: The emission factor for the supplied market that is worked out in accordance with subsection (5) is commonly referred to as the ‘residual mix factor’.
Start formula EF start subscript elec end subscript equals EF start subscript elec,scope 2 end subscript plus EF start subscript elec,scope 3 end subscript end formula
where:
EFelec,scope 2 is the scope 2 residual mix factor in kilograms of CO2-e per kilowatt hour in column 3 of the table in Part 6 of Schedule 1 to the NGER Measurement Determination for the State or Territory where the electricity used for the production pathway for the batch (b) was generated.
EFelec,scope 3, the scope 3 emission factor for purchased or acquired electricity in kilograms of CO2-e per kilowatt hour, is 0.11.
(6) For subsection (3), Qelec,ex,b is worked out using the following formula:
Start formula Q start subscript elec,ex,b end subscript equals start fraction Q start subscript elec,ex,y end subscript over Q start subscript elec,market,y end subscript end fraction times Q start subscript elec,market,b end subscript end formula
where:
Qelec,ex,y is the quantity of purchased or acquired electricity supplied to the holder of the production profile for the year (y) in megawatt hours monitored or measured in accordance with section 9 that:
(a) has been, or is expected to be, claimed against an exemption under the REE Act; or
(b) has been acquired under an acquisition that is not a relevant acquisition within the meaning of section 31 of the REE Act.
Qelec,market,y is the quantity of purchased or acquired electricity supplied to the holder of the production profile for the year (y) in megawatt hours, monitored or measured in accordance with section 9.
Qelec,market,b is the quantity of purchased or acquired electricity used for the production pathway for the batch (b) in kilowatt hours, monitored or measured in accordance with section 9.
y is either:
(a) the financial year immediately prior to the financial year in which the batch period started; or
(b) the calendar year immediately prior to the calendar year in which the batch period started.
Electricity generated by the holder of the production profile in a CHP plant
(7) For subsection (1), Eelec,hol,b is worked out using the following formula:
Start formula E start subscript elec,hol,b end subscript equals CHP start subscript e,b end subscript times E start subscript fuel,CHP,b end subscript end formula
where:
CHPe,b is the proportion of the total emissions attributable to the electricity generated in the CHP plant by the holder of the production profile and used for the production pathway for the batch (b), worked out in accordance with subsection (8).
Efuel,CHP,b is the emissions from the fuel used to operate the CHP plant for the production pathway for the batch (b), worked out in accordance with subsection (9).
(8) For subsection (7), the proportion of the total emissions attributable to the electricity generated in a CHP Plant by the holder of the production profile and used for the production pathway for the batch (b), CHPe, is determined in accordance with the CHP Tool as follows:
(a) if using the efficiency method—the emissions share attributable to electricity production divided by the total direct emissions from CHP plant;
(b) if using the work potential method or the energy content method—the fraction of total emissions to allocate to the electricity energy stream.
(9) For subsection (7), the emissions from fuel used to operate the CHP plant for the production pathway for the batch (b) in kilograms of CO2‑e, Efuel,CHP,b, are calculated using the following formula:
Start formula E start subscript fuel,CHP,b end subscript equals sigma with subscript i below it open curly brace Q start subscript i,CHP,b end subscript times EC start subscript i end subscript times open round bracket EF start subscript scope1,i end subscript plus EF start subscript scope3,i end subscript close round bracket close curly brace end sum end formula
where:
Qi,CHP,b is the quantity of the fuel type (i) used to operate the CHP plant for the production pathway for the batch (b), monitored or measured in accordance with section 9.
ECi is the energy content factor for the fuel type (i) determined in accordance with section 13.
EF scope1,i is the scope 1 emission factor for the fuel type (i) in kilograms of CO2-e per gigajoule calculated in accordance with subsection (10).
EF scope 3,i is the scope 3 emission factor for the fuel type (i) in kilograms of CO2-e per gigajoule as determined in accordance with:
(a) if there is a registered PGO certificate in respect of the batch of the fuel type (i)—the PGO certificate; or
(b) in any other case—in accordance with section 12.
(10) For subsection (9), EF scope1,i, is worked out using the following formula:
Start formula EF start subscript scope1,i end subscript equals sigma with subscript j below it EF start subscript ij end subscript end formula
where:
EFij is the scope 1 emission factor for each greenhouse gas type (j) released from the use of the fuel type (i), in kilograms of CO2-e per gigajoule of fuel type (i), determined in accordance with section 11.
Definitions
(11) In this section:
created means:
(a) for a REGO certificate—registered under section 104 of the Act;
(b) for a large-scale generation certificate—created and registered under the REE Act.
exemption has the same meaning as in the REE Act.
Jurisdictional Renewable Power Percentage, for a State or Territory for a financial year, means the percentage known as the jurisdictional renewable power percentage for the State or Territory for the financial year published in the NGAF.
NGAF means the document titled National Greenhouse Accounts Factors published by the Department as existing from time to time.
REE Act means the Renewable Energy (Electricity) Act 2000.
Renewable Energy Certificate means a certificate that:
(a) is one of the following:
(i) a large-scale generation certificate surrendered under section 28A of the REE Act, other than a certificate:
(A) created in contravention of section 24 or 25 of that Act; or
(B) surrendered to meet a liable entity’s obligations under Subdivision A of Division 1 of Part 5 or section 95 of that Act; or
(ii) a REGO certificate, other than a certificate created in contravention of section 103 of the Act; and
(b) is not in respect of electricity that was generated more than 1 year before the start of the batch period.
renewable power percentage has the same meaning as in the REE Act.
surrendered means:
(a) for a REGO certificate—retired under section 107 of the Act;
(b) for a large-scale generation certificate—surrendered under the REE Act.