Managed Emission Factors - Supply Chain Greenhouse Gas Emission Factors for US Industries and Commodities

The US EPA has published a set of spend-based emission factors covering 394 commodities and 66 summary data types.

Envizi has managed this factor set since 2021 and factor are available back to 2018. The factor set is managed using both raw figures with 2018 USD, and an inflation adjusted version.

Envizi will discontinue updates this factor publication at the end of 2024. Envizi will release a new set of account styles that are linked to the v1.2 publication in Q4 2024.

Website	Supply Chain Greenhouse Gas Emission Factors for US Industries and Commodities
Citation	Ingwersen, W. AND M. Li. Supply Chain Greenhouse Gas Emission Factors for US Industries and Commodities. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-20/001, 2020.
Upcoming publication date	Factor set v1.0 originally published in July 2020 and an update v1.1.1 was last revised March 2023. Factors for 2024 have been updated using an inflation value of 24.43% from 2018.
Geographical coverage	USA only
Data type coverage	This Scope 3 spend-based factor set covers 394 commodity types, and 66 summary data types. For a full list download the factors sets here: v1.0 v1.1 v1.1.1
Inflation	Inflation values taken from US Bureau of Labor Statistics. Values for inflation were calculated by comparing January 2018 to January of factor effective year.
Example factor calculation using inflation	Refer to the file below to explore how Envizi calculates factors using inflation. USEEIO inflation applied example v3.xlsx Values in blue are taken from US EPA GWP from AR4 is applied to raw values Inflation from column F is applied to factors in yellow, columns M to Q Values from 'other ghgs' (column K) are included in the total CO2e (column G, M), but as the specific GHG is not specified, 'other ghgs' are not stored in Envizi explicitly and are only included in the 'Total CO2e' value. Envizi treats 'factors without margins' as the main 'direct' factor (Total CO2e), and the margin component is loaded as the 'indirect' factor. Emissions related to the 'margin' or 'indirect' component of the factor are found in the 'Emissions Performance' dashboard, the Monthly Data Summary extract report and in the PowerBI monthly dataset.
Effective and Published dates	Since this publication was recently released emission factor effective dates are the same as the published dates. This is likely to change with the upcoming publication as this factor set will use historical USD rates and emissions data to compile factors. For more information on effective and published dates see this article.

Managed publications and effective periods

Factor Source reference	Effective From	Effective To	Published From	Published To
Supply Chain Factors Dataset v1.0, Tab: 2016_Detail_Commodity, Citation: Ingwersen, W. AND M. Li. Supply Chain Greenhouse Gas Emission Factors for US Industries and Commodities. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-20/001, 2020.		31 Dec 2021		31 Dec 2021
Supply Chain Factors Dataset v1.1, Tab: 2016_Detail_Commodity, Citation: Ingwersen, W. AND M. Li. Supply Chain Greenhouse Gas Emission Factors for US Industries and Commodities. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-20/001, 2020.	01 Jan 2022	31 Dec 2022	01 Jan 2022	31 Dec 2022
Supply Chain Factors Dataset v1.1.1, Tab: 2016_Detail_Commodity, Citation: Ingwersen, W. AND M. Li. Supply Chain Greenhouse Gas Emission Factors for US Industries and Commodities. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-20/001, 2020.	01 Jan 2023		01 Jan 2023
Supply Chain Factors Dataset v1.0, Tab: 2016_Detail_Commodity, Citation: Ingwersen, W. AND M. Li. Supply Chain Greenhouse Gas Emission Factors for US Industries and Commodities. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-20/001, 2020. Inflation adjustment = 0.0%		31 Dec 2018		31 Dec 2018
Supply Chain Factors Dataset v1.0, Tab: 2016_Detail_Commodity, Citation: Ingwersen, W. AND M. Li. Supply Chain Greenhouse Gas Emission Factors for US Industries and Commodities. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-20/001, 2020. Inflation adjustment = 1.55%	01 Jan 2019	31 Dec 2019	01 Jan 2019	31 Dec 2019
Supply Chain Factors Dataset v1.0, Tab: 2016_Detail_Commodity, Citation: Ingwersen, W. AND M. Li. Supply Chain Greenhouse Gas Emission Factors for US Industries and Commodities. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-20/001, 2020. Inflation adjustment = 4.08%	01 Jan 2020	31 Dec 2020	01 Jan 2020	31 Dec 2020
Supply Chain Factors Dataset v1.0, Tab: 2016_Detail_Commodity, Citation: Ingwersen, W. AND M. Li. Supply Chain Greenhouse Gas Emission Factors for US Industries and Commodities. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-20/001, 2020. Inflation adjustment = 5.53%	01 Jan 2021	31 Dec 2021	01 Jan 2021	31 Dec 2021
Supply Chain Factors Dataset v1.1, Tab: 2016_Detail_Commodity, Citation: Ingwersen, W. AND M. Li. Supply Chain Greenhouse Gas Emission Factors for US Industries and Commodities. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-20/001, 2020. Inflation adjustment = 13.43%	01 Jan 2022	31 Dec 2022	01 Jan 2022	31 Dec 2022
Supply Chain Factors Dataset v1.1.1, Tab: 2016_Detail_Commodity, Citation: Ingwersen, W. AND M. Li. Supply Chain Greenhouse Gas Emission Factors for US Industries and Commodities. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-20/001, 2020. Inflation adjustment = 20.70%	01 Jan 2023	31 Dec 2023	01 Jan 2023	31 Dec 2023
Supply Chain Factors Dataset v1.1.1, Tab: 2016_Detail_Commodity, Citation: Ingwersen, W. AND M. Li. Supply Chain Greenhouse Gas Emission Factors for US Industries and Commodities. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-20/001, 2020. Inflation adjustment = 24.43%	01 Jan 2024		01 Jan 2024