Managed Emission Factors - IEA

The International Energy Agency publishes a comprehensive set of Electricity and Heating emission factors annually, covering most countries and regions in the world. This factor set applies to Electricity Scope 2 and Scope 3 (for reporting of electricity consumption not directly under operational control) consumption data, and including adjustment factors for transmission and distribution losses.

In Envizi, this factor set is being applied as the default Electricity emission factor set for most, and majority of countries that do not have country specific managed factor sets stored in Envizi, such as NGERS, DEFRA or eGRID. Due to the nature of this factor set, factors from IEA have been loaded into Envizi as part of the ‘Default’ factor set, rather than a separated IEA factor set.

Envizi has managed this factor set since 2013. This factor set has been published consistently by International Energy Agency in September or October every year. Before 2016, this factor set was provided by IEA free of charge to the public. After 2017, IEA productionized this factor set and Envizi has entered a purchase licensing agreement with IEA to commercially obtain the factors.

As a result of this, IEA factors reported in Envizi is for Envizi’s clients' and partners' in-house reporting only, and must NOT be distributed or used outside of Envizi. IEA factor values will also be masked in the ‘Emission and Energy Factors’ report, due to the licensing agreement that IEA factor values are not allowed to be accessible in a spreadsheet. If you require to reveiw original IEA factor values for in-house auditting purposes, please use the ‘Emission and Energy Factors - PDF Version’ report - the report is delivered in PDF format as an email attachment and contains the original IEA factor values.


Website	International Energy Agency - Data Products - Emissions
Upcoming publication date	Publishes annually every September. Upcoming publication date (tentative): 15-Sep-2024
Geographical coverage	By default factors are applied to Electricity Scope 2 and Scope 3 (location based factors) for about 150+ countries and regions, except the following: Australia (NGERS) US (EPA eGRID) UK (DEFRA) New Zealand Canada Full list of countries and regions covered by IEA factors: Countries and Regions Albania Algeria Angola Argentina Armenia Australia (see note above) Austria Azerbaijan Bahrain Bangladesh Belarus Belgium Benin Bermuda Bolivia Bosnia and Herzegovina Botswana Brazil Brunei Bulgaria Burkina Faso Cambodia Cameroon Canada (see note above) Chile China Colombia Congo Democratic Republic of the Congo Republic of the Cook Islands Costa Rica Croatia Curaçao Cyprus Czech Republic Denmark Dominican Republic East and Southeast Asia Ecuador Egypt El Salvador Eritrea Estonia Ethiopia Fiji Finland France French Polynesia Gabon Georgia Germany Ghana Gibraltar Greece Greenland Guatemala Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia Iraq Ireland Israel Italy Ivory Coast Jamaica Japan Jordan Kazakhstan Kenya Kuwait Kyrgyzstan Laos Latvia Lebanon Libya Lithuania Luxembourg Macedonia Madagascar Malaysia Mali Malta Mauritius Mexico Moldova Mongolia Montenegro Morocco Mozambique Myanmar (Burma) Namibia Nepal Netherlands Netherlands Antilles New Caledonia New Zealand (see note above) Nicaragua Nigeria Norway Oceania Oman Pakistan Panama Papua New Guinea Paraguay Peru Philippines Poland Portugal Qatar Romania Russia Rwanda Samoa Saudi Arabia Senegal Serbia Singapore Slovakia Slovenia Solomon Islands South Africa South Korea Spain Sri Lanka Sudan Suriname Sweden Switzerland Syria Taiwan Tajikistan Tanzania Thailand Togo Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Uganda Ukraine United Arab Emirates United Kingdom (see note above) United States (see note above) Uruguay Uzbekistan Vanuatu Venezuela Vietnam Yemen Zambia Zimbabwe
Data type coverage	Scope 2: electricity and electricity green offset Scope 3: electricity Scope 3 Indirect Only: electricity
Effective and Published dates	Due to the timing of the factor publication every year (September), Envizi has adopted a best practice approach to align the published dates to its next calendar year, starting from January of next year. For example, factors published in Sep-2021 will have their published on date adjusted to Jan-2022 and to be applied for electricity data from Jan-2022 onwards only. For more information on effective and published dates see this article. If you require a custom period for your factors this will need to be managed as custom factors.
Indirect CO2e	Starting from the IEA 2023 dataset, there has been a change in how indirect emissions are calculated. The newly available ‘IEA LifeCycle Upstream Emission Factors 2023-PilotEdition’ dataset now provides life cycle emission factors corresponding to electricity generation. 'Indirect CO2e' now consists of both 'Total upstream factors' and 'Life cycle T&D factors' components as provided in the IEA life cycle dataset. For certain countries, it defaults to the original non-lifecycle 'T&D losses adjustment' if neither of the aforementioned is available in the life cycle dataset. With this change, you will likely see a significant increase in indirect CO2e emissions associated with electricity consumption, starting from data period of 2024 onwards, in comparison to previous years. The increased indirect or life cycle emissions shall give us a complete picture of the environmental impact of electricity generation and consumption. For more details, go to IEA.org to find out the individual values for total upstream and life cycle T&D from its free 'IEA Life Cycle Upstream Emission Factors (2023) - pilot Edition' dataset.

Managed publications and effective periods

Factor Source Reference	Effective From	Effective To	Published From	Published To
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/1990	31/12/1990	1/01/1990	31/12/1990
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/1991	31/12/1991	1/01/1991	31/12/1991
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/1992	31/12/1992	1/01/1992	31/12/1992
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/1993	31/12/1993	1/01/1993	31/12/1993
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/1994	31/12/1994	1/01/1994	31/12/1994
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/1995	31/12/1995	1/01/1995	31/12/1995
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/1996	31/12/1996	1/01/1996	31/12/1996
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/1997	31/12/1997	1/01/1997	31/12/1997
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/1998	31/12/1998	1/01/1998	31/12/1998
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/1999	31/12/1999	1/01/1999	31/12/1999
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/2000	31/12/2000	1/01/2000	31/12/2000
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/2001	31/12/2001	1/01/2001	31/12/2001
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/2002	31/12/2002	1/01/2002	31/12/2002
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/2003	31/12/2003	1/01/2003	31/12/2003
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/2004	31/12/2004	1/01/2004	31/12/2004
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/2005	31/12/2005	1/01/2005	31/12/2005
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/2006	31/12/2006	1/01/2006	31/12/2006
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/2007	31/12/2007	1/01/2007	31/12/2007
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/2008	31/12/2008	1/01/2008	31/12/2008
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/2009	31/12/2009	1/01/2009	31/12/2009
International Energy Agency - excel file:CO2 Highlights 2012, CO2 Emissions from Fuel Combustion, tab:CO2 emissions per kWh from electricity generation (updated March 2013)	1/01/2010	31/12/2010	1/01/2010	31/05/2014
GHG Protocol excel file: World Resources Institute (2015). GHG emissions from purchased electricity. Version 4.5, tab:co2kwh (updated May 1, 2014)	1/01/2011	31/12/2011	1/06/2014	30/04/2015
GHG Protocol excel file:World Resources Institute (2015). GHG emissions from purchased electricity. Version 4.7, tab:co2kwh (updated May 18, 2015)	1/01/2012	31/12/2012	1/05/2015	31/12/2015
International Energy Agency - World CO2 Emissions from Fuel Combustion database (2015)	1/01/2013	31/12/2013	1/01/2016	31/12/2016
International Energy Agency - World CO2 Emissions from Fuel Combustion database (2016)	1/01/2014	31/12/2014	1/01/2017	31/12/2017
International Energy Agency - World CO2 Emissions from Fuel Combustion database (2017)	1/01/2015	31/12/2015	1/01/2018	31/12/2018
International Energy Agency - Emission Factors 2018	1/01/2016	31/12/2016	1/01/2019	31/12/2019
International Energy Agency - Emission Factors 2019	1/01/2017	31/12/2017	1/01/2020	31/12/2020
International Energy Agency - Emission Factors 2020	1/01/2018	31/12/2018	1/01/2021	31/12/2021
International Energy Agency - Emission Factors 2021	1/01/2019	31/12/2019	1/01/2022	31/12/2022
International Energy Agency - Emission Factors 2022	1/01/2020	31/12/2020	1/01/2023	31/12/2023
International Energy Agency - Emission Factors 2023	1/01/2021		1/01/2024

Understanding IEA Factor Name and Dates

In Envizi, each emission factor has a ‘Factor Name’ to differentiate if from other emission factors. For IEA Factors, the factor name contains three pieces of information:

Original factor name, that includes: country the factor is for and its effective year
Factor Source - the document name that the IEA factor is sourced from
Publish Dates - the date period the factor is meant to be used for, if using ‘Published Dates’ method

For example, “Albania Electricity - 2019;IEA Emission Factors 2021;Published for 2022” can be interpreted as that the factor is for the country of Albania with effective year of 2019, and it is obtained from the document ‘IEA Emission Factors 2021’ which was most likely released in Sep or Oct of 2021, and the factor will only be used for electricity data that fall into the next calendar year which is 2022, if using ‘Published Dates’ method.

Full factor details can be reviewed in either the preview panel of the ‘Monthly Data’ page, or via the ‘Emission and Energy Factors’ report.

When a new set of factors are published in September or October every year, the new factors will not be applied to the current calendar year if you are using the published dates method. Instead they will only be applied from next January onwards. IEA factor sources are kept consistent throughout a calendar year.