Future Made in Australia (Guarantee of Origin) Methodology Determination 2025
17Water supply
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17 Water supply
(1) The emissions from water used for the production pathway for the batch (b), Ewater,is,b, in kilograms of CO2-e are calculated using the following formula:
Start formula E start subscript water,is,b end subscript equals sigma with subscript x below it Q start subscript water,x,b end subscript times EF start subscript water,x end subscript end formula
where:
Qwater,x,b is the quantity of water used for the production pathway for the batch (b) which has been provided by an input supplier from water source (x) in kilograms, monitored or measured in accordance with section 9.
EFwater,x is the emission factor for the water source (x) in kilograms of CO2-e per kilogram, worked out in accordance with subsection (2).
(2) For subsection (1), the emission factor for the water source (x), EFwater,x in kilograms of CO2-e per kilogram is: (a) if the water has not been subject to an advanced treatment process—the emission factor specified in column 3 of an item in the table in Part 1 of Schedule 1 for the water source in column 2 of the of that item; (b) if the water has been subject to an advanced treatment process—the sum of the factors specified in: (i) column 3 of an item in the table in Part 1 of Schedule 1 for the water source in column 2 of that item; and (ii) column 4 of an item in the table in Part 2 of Schedule 1 for the advanced treatment process mentioned in column 2 of that item; (c) in any case—calculated in accordance with subsection (3). (3) For paragraph (2)(c), the emission factor for the water source (x), EFwater,x, is worked out using the following formula:
Start formula EF start subscript water,x end subscript equals start fraction E start subscript water,is,x,y end subscript over Q start subscript water,x,y end subscript end fraction end formula
where:
Ewater,is,x,y is the total scope 1 and 2 emissions for the water source (x) for the year (y) in kilograms of CO2-e, provided by the input supplier.
Qwater,x,y is the quantity of water from the water source (x), other than treated or untreated wastewater that has been collected and redistributed, for the year (y) in kilograms, provided by the input supplier.
y is the financial year immediately prior to the financial year in which the batch period started.
(4) In this section:
advanced treatment process means a process described in an item in column 2 of the table in Part 2 of Schedule 1 that produces water of the quality described in column 3 of that item.