These calculators are for the 2025–26 reporting period. They can help you:
- assess your emissions and energy against reporting thresholds
- report greenhouse gas emissions and energy.
Calculators for 2025–26
We have 5 calculators for the 2025–26 reporting year.
The NGER emissions and energy threshold calculator [XLSX 21.3 MB] can help you assess if you have NGER obligations.
You can use it to estimate your:
- scope 1 emissions
- scope 2 emissions
- energy production
- energy consumption.
This calculator was updated to version 1.7.1 in September 2026. Please use the latest version of this calculator to estimate emissions and energy.
For help using the calculator download our NGER emissions and energy threshold calculator user guide.
The NGER uncertainty calculator [XLSX 1.17 MB] helps you estimate and report uncertainty associated with scope 1 emissions. It can help if you're:
- using methods higher than method 1 to report fuels or energy sources
- required to calculate uncertainty using non-default values.
The Emissions and Energy Reporting System (EERS) automatically calculates uncertainty associated with scope 1 emissions where you have used method 1.
For help using the calculator download the NGER uncertainty calculator user guide.
The NGER solid waste calculator [XLSX 7.69 MB] can help you estimate and report the greenhouse gas emissions from landfill operations. This calculator was updated to version 1.8.1 in July 2026. Please use the latest version of this calculator for your NGER reporting.
The NGER domestic and commercial wastewater calculator [XLSX 863.82 MB] can help you estimate and report the greenhouse gas emissions from domestic and commercial wastewater.
The NGER wastewater industrial calculator [XLSX 168.54 MB] can help you estimate and report the greenhouse gas emissions from industrial wastewater.
Calculators from previous reporting periods
We retain calculators from the last 3 reporting periods on our website. For older calculators, contact us.
Creating these calculators
We created these calculators in line with: