Document ID: chunk:federal_register_of_legislation:F2018L01206:reg:11:p1
Version: federal_register_of_legislation:F2018L01206
Segment Type: reg
Provision Reference: reg 11 (pt 1/3)
Character Range: 22193–24830

11  IE unit must include all equipment within an energy boundary

Note 1: Effect of this section

 The effect of this section is that the IE unit must be specified as a system of equipment whose energy boundary contains all energy-consuming equipment that contributes to producing the measured output. This is so that the unit can validly be used in the abatement calculations that treat the unit as using the direct fuel and energy inputs to the unit, and those inputs only, to produce the outputs.

 The project proponent will often have a choice about how to define the IE units in its project.

 There will be a minimum set of energy boundaries for the project that includes each item of equipment that will be affected by the proposed IE upgrades, and the proponent may define the IE units of the project to conform to those boundaries. However, this section does not require the smallest possible energy boundaries to be chosen, and the proponent may use a wider energy boundary to define an IE unit if this is more convenient. This might be done, for example, in order to include other energy-consuming equipment that is not separately metered, or to allow the use of a better output indicator. However, such a wider boundary may be chosen only if it does not significantly affect the accuracy of the abatement calculations.

 The choice of whether certain equipment should be included within the IE unit, or specified as a partly independent sub-system under section 12, may depend on how the output is to be defined and the choice of output indicators for section 14.

Note 2: Effect of upgrade on energy boundary

 This section does not require the original unit and the upgraded unit to have the same energy boundary. However, the requirements that the outputs and output indicators be unchanged will mean that the energy boundary can change only to the extent necessary to accommodate the changes due to the upgrade, such as excluding removed equipment and including any installed equipment or components.

Note 3: Effect of section 38

 Section 38 requires that energy inputs and certain other energy flows in the IE unit be measured, either directly or by using a reliable proxy method.  Measurement and estimation must be done in accordance with specified standards.

 In some cases, section 38 will allow the proponent to rely on metering that includes a wider range of equipment than the sub-unit, and use a proxy method to measure the amount of energy that is not used by sub-unit.
 (1) This section applies to both the original unit and the upgraded unit of each IE unit of the project.
What the unit must include
 (2)