Why don’t the parent asset emissions equal the sum of child asset emissions?

If there is no direct data linked to a parent asset, and the sum of its emissions don’t equal the sum of its child asset emissions, it may be the child and parent assets exist in different states.

Child asset quantities and costs aggregate up to the parent asset. Emissions are recalculated for each asset; they are not aggregated.

If child assets are located in different states to the parent asset, the emissions may not directly correlate because different states have different emission factors in some calculations e.g. electricity.

How can I verify the calculated emissions?

Emission Factors report

The Emission Factors report contains a list of all available emission factor sets and factors.

Activity Register

The Activity Register report contains a list of all activities for the logged-in user’s tenant, including a “CalcConfigs” tab which details the different configurations in effect for each activity over time (including emission factor sets).

“Factors” tab

A number of reports feature a “Factors” tab with all the emission factor values that are linked to the activities in the logged-in user’s tenant and that are configured to be in effect during the report month range. (The activities and factors are listed regardless of whether or not the activity had any data in the report month range.)

The “Factors” tab can be filtered to show the factors of a particular emission factor type (and sub-type).

For tenants with assets across multiple states, any activities with factors that are location-dependent (e.g. Potable Water) will show factor values for every state with a configured asset.

An activity will typically be configured to use values from a single emission factor for a financial year, in line with NGA Factor releases. However, calculations like those for market-based electricity activities require a different set of factors to be applied every six months. This is to accommodate the location-based NGA values in effect for a financial year, but also the market-based RPP values that are effective for a calendar year.

Market-based electricity calculations and RPP

The RPP values used in electricity market-based calculations may not be released for up to five months into the calendar year they are to be in effect for. As these release dates are usually too late for a financial-year based reporting cycle, RPP values in Eden Suite have previously been averaged across two calendar years to have a value available for emissions calculations in a timely manner. Those RPP values are calculated two-year averages through to 2023/24.

From 2025 onwards, activities are configured with NGA electricity emission factors sets with six-month intervals to handle (financial year) location-based factors and (calendar year) market-based factors. Those RPP values are direct from Clean Energy Regulator .