New Zealand ministry for the environment factor set
The New Zealand Ministry for the Environment (MfE) publishes a set of GHG emission factors covering Scope 1, 2 and some Scope 3 emission sources.
IBM® ESG Suite has managed this factor set since 2009. This factor set has been published at irregular intervals since it was originally created back in 2006. The factor set contains the 3 individual GHG gases for fossil fuel sources and CO2e for all other sources.
The available emission sources change from year to year so it’s recommended to review the publication to understand the changes from year to year.
- Note for 2024 publication
- In 2024 the MfE published multiple new historical factors for purchased electricity. The most recent factor for 2023 has been used for this publication.
- Note for 2023 publication
- In 2023 the MfE published 2 factors for purchased electricity for 2021 and 2022. The most recent
factor for 2022 has been used for this publication. Both factor values are provided in the following
list reference:
- 2021 Factor: 0.114985977
- 2022 Factor: 0.074177653
The 2021 factor cannot be loaded as it would affect previously reported emissions and break the factor selection methodology, but organizations can choose to create a custom factor if they wish.
- Update to electricity emission factor in August 2022
- There was a small revision to the grid electricity factor published in May 2022. The value was originally 0.107 kgCO2e/kWh and was updated in August 2022 to 0.120 kgCO2e/kWh.
| Element | Description |
|---|---|
| Website | Measuring emissions: A guide for organisations: 2024 detailed guide |
| Upcoming publication date | Publishes every 1-2 years. Upcoming publication date: mid-2025 |
| Geographical coverage | New Zealand only |
| Data type coverage |
Publications exist 2006 to the present, but the ministry has not published every year since inception. See the following publication list for details. Scope 1: fossil fuels, biofuels, refrigerants, passenger and delivery vehicles (distance based) Scope 2: NZ electricity Scope 3: upstream and downstream emissions resulting from Scope 1 and 2 emission sources and the following items:
Note that Envizi ESG Suite calculates well-to-tank (lifecycle) emissions and these are visible in the Emissions Performance Dashboard and categorized as ‘lifecycle emissions’ in the grid. Lifecycle emissions can also be extracted using the Monthly Data Summary Report. |
| Effective and Published dates |
Due to the irregular publication periods there are some publications that are ‘active’ for longer than others. For more information on effective and published dates, see Assigning factors. If the organization would like to apply this factor set always using effective periods, the historical data load date should be set to a blank value. If the organization would like to apply this factor set always using published periods, the historical data load date should be set to a date into the distant future. If the organization requires a custom period for your factors this will need to be managed as custom factors. |
Managed publications and effective periods
| Factor source reference | Effective from | Effective to | Published from | Published to |
|---|---|---|---|---|
| Guidance for Voluntary Corporate Greenhouse Gas Reporting: Data and method for the 2010 calendar year:Microsoft Excel workbook with the emission factors and underlying methods | tab: Scope 2 Electricity (2006) | 31 Dec 2006 | 31 Aug 2008 | ||
| Guidance for Voluntary Corporate Greenhouse Gas Reporting: Data and method for the 2010 calendar year:Microsoft Excel workbook with the emission factors and underlying methods | tab: Scope 2 Electricity (2007) | 01 Jan 2007 | 31 Dec 2007 | 01 Sep 2008 | 31 Aug 2009 |
| Guidance for Voluntary Corporate Greenhouse Gas Reporting: Data and method for the 2010 calendar year:Microsoft Excel workbook with the emission factors and underlying methods | tab: Scope 2 Electricity (2008) | 01 Jan 2008 | 31 Dec 2008 | 01 Sep 2009 | 30 Apr 2011 |
| Guidance for Voluntary Corporate Greenhouse Gas Reporting: Data and method for the 2010 calendar year:Microsoft Excel workbook with the emission factors and underlying methods | tab: Scope 2 Electricity (2009) | 01 Jan 2009 | 31 Dec 2009 | 01 May 2011 | 30 Nov 2011 |
| Guidance for Voluntary Corporate Greenhouse Gas Reporting: Data and method for the 2010 calendar year:Microsoft Excel workbook with the emission factors and underlying methods | tab: Scope 2 Electricity (2009) | 01 Jan 2010 | 31 Dec 2010 | 01 Dec 2011 | 30 Sep 2012 |
| Guidance for Voluntary Corporate Greenhouse Gas Reporting: Data and method for the 2011 calendar year. 3.2.1 Purchased electricity, Table 4: Emission factor for the consumption of purchased electricity - 2011, pp.13 | 01 Jan 2011 | 31 Dec 2011 | 01 Oct 2012 | 31 Mar 2014 |
|
New Zealand Ministry for the Environment - Guidance for Voluntary, Corporate Greenhouse Gas Reporting, Data and methods for the 2012 calendar year Note that emission factors have been calculated using AR4. |
01 Jan 2012 | 31 Dec 2012 | 01 Apr 2014 | 31 Mar 2015 |
| New Zealand Ministry for the Environment - Guidance for Voluntary, Corporate Greenhouse Gas Reporting, Data and methods for the 2013 calendar year | 01 Jan 2013 | 31 Dec 2013 | 01 Apr 2015 | 30 Nov 2016 |
| New Zealand Ministry for the Environment - Guidance for Voluntary, Corporate Greenhouse Gas Reporting, Data and methods for the 2014 calendar year | 01 Jan 2014 | 31 Dec 2015 | 01 Dec 2016 | 30 Apr 2019 |
| New Zealand Ministry for the Environment - Measuring Emissions: A Guide for Organisations – 2019 Detailed Guide | 01 Jan 2016 | 31 Dec 2017 | 01 May 2019 | 31 Dec 2020 |
| MfE Guidance for Voluntary Greenhouse Gas Reporting – 2020, Emission Factor Workbook Using Data and Methods from the 2018 Calendar Year | 01 Jan 2018 | 31 Dec 2019 | 01 Jan 2021 | 30 Apr 2022 |
| MfE Guidance for Voluntary Greenhouse Gas Reporting – 2022, Emission Factor Workbook Using Data and Methods from the 2020 Calendar Year | 01 Jan 2020 | 31 Dec 2020 | 01 May 2022 | 31 Jul 2023 |
| MfE Guidance for Voluntary Greenhouse Gas Reporting – 2023, Emission Factor Workbook Using Data and Methods from the 2021 Calendar Yea | 01 Jan 2021 | 31 Dec 2022 | 01 Aug 2023 | 31 May 2024 |
| MfE Guidance for Voluntary Greenhouse Gas Reporting – 2024, Emission Factor Workbook Using Data and Methods from the 2022 Calendar Year | 01 Jan 2023 | 01 Jun 2024 |
When a new set of factors is published, publication from the previous year will terminate on the previous month. This factor set is published in irregular intervals so published dates are not the same months year to year, but effective periods have been aligned to calendar year reporting.