Document ID: chunk:federal_register_of_legislation:F2018L01206:reg:14:p2
Version: federal_register_of_legislation:F2018L01206
Segment Type: reg
Provision Reference: reg 14 (pt 2/3)
Character Range: 36238–39051

output specified for a sub-unit of an IE unit must satisfy the following:
 (a) it is a service of value that the IE unit physically and directly contributes to creating;
 (b) omitting the IE unit would prevent the generation of the output, or significantly reduce the available range or rate of output.
 (3) An output indicator or reference output indicator specified for a sub-unit of an IE unit must be:
 (a) a primary parameter; or
 (b) a derived indicator, expressed as a mathematical formula, that includes one or more primary parameters and may also include verifiable standard constants or measures that do not diminish the precision of the calculation.
 (4) An output indicator or reference output indicator must be appropriate for the sub-unit both before and after the upgrade.
 (5) An output indicator or reference output indicator is appropriate if:
 (a) it is measurable in units that comply with the National Measurement Act 1960; and
 (b) it is demonstrably related to the outputs, so that:
 (i) if the outputs increase and decrease together, the indicator increases and decreases with them; and
 (ii) the indicator is a reasonable measure of, or proxy for, the outputs; and
 (c) if the output indicator or reference output indicator combines measurements from two or more distinct outputs—either:
 (i) the measurements for each distinct output would separately satisfy the output representativeness criterion in section 23 for each measurement period and reference period; or
 (ii) the production of all distinct outputs that make up the output indicator or reference output indicator is conducted using the same equipment such that:
 (A) the equipment is used for similar times and loads to produce each output; and
 (B) if thermal processes are involved—each output is produced at similar temperatures.
 (6) In this determination:
primary parameter, in relation to an IE unit, means a measurable quantity that relates to an input, internal transfer or intermediate or final product of the facility served by the IE unit.
verifiable standard constant or measure, means a physical constant, measure of material properties or like figure that is documented by an engineering handbook, an Australian or ISO standard, or a similarly authoritative source.

Examples:
An IE unit provides water pumping services for a facility that produces a single final product. If the water is at ambient temperature the volume of water pumped may be an appropriate indicator of the pumping system output.

 If the proponent wishes to upgrade machinery that is fed by the pumping service, that machinery may be included in the IE unit. If the proponent can demonstrate a sufficiently close relationship between the output of the IE unit so defined and the quantity of the final product of the facility, that quantity