The following emission factor sources are displayed on the platform.
Generic government/public authority sources
Base Empreinte, the French Environment Agency (ADEME)
Source: https://base-empreinte.ademe.fr/
This includes the following databases that are displayed on the platform:
ADEME MEF BASE EMPREINTE: monetary ratios that are used in the financial transaction module and that are included in the Base Carbone.
BASE CARBONE ADEME: the original database published by the French Environment Agency that is being slowly merged into the Base Empreinte.
BASE IMPACTS ADEME: the multi-criteria database that complements the Base Carbone (only GHG focused) that is being slowly merged into the Base Empreinte.
BASE EMPREINTE ADEME: the new merged version of the French Environment Agency database.
UK Government GHG conversion factors for company reporting, the Department for Energy Security and Net Zero (DESNZ/DEFRA)
Source: https://www.gov.uk/government/collections/government-conversion-factors-for-company-reporting
Name displayed on the platform: UK GHG CONVERSION FACTOR
GHG Emission Factor Hub, United States Environmental Protection Agency (EPA)
Source: https://www.epa.gov/climateleadership/ghg-emission-factors-hub
Name displayed on the platform: EPA GHG EMISSION FACTOR HUB
Miteco, the Spanish Ministry for Ecological Transition (MITECO)
Source: https://www.miteco.gob.es/content/dam/miteco/es/cambio-climatico/temas/mitigacion-politicas-y-medidas/factoresemision_tcm30-542746.xlsx
Name displayed on the platform: MITECO
Exiobase
Source: https://exiobase.eu/
Name displayed on the platform: EXIOBASE
US Supply Chain Greenhouse Emission Factors, USEEIO, United States Environmental Protection Agency (EPA)
Source: https://cfpub.epa.gov/si/si_public_record_report.cfm?Lab=CESER& dirEntryId=349324
Name displayed on the platform: USEEIO
Sector-specific sources
Energy sector
HEAT NETWORK FRENCH GOVERNMENT: French heat and cold networks, the French government, https://www.legifrance.gouv.fr/jorf/id/JORFTEXT000051520810
IEA and IEA BUILDING MODULE: IEA electricity emission factors, the International Energy Agency, https://www.iea.org/data-and-statistics/data-product/emissions-factors-2025
EGRID: eGRID US electricity emission factors, United States Environmental Protection Agency, EPA, https://www.epa.gov/egrid
AIB: European residual mix, Association of Issuing Bodies, AIB, https://www.aib-net.org/facts/european-residual-mix
EGREEN: US residual mix, Center for Resource Solutions, CRS, https://resource-solutions.org/residual-mix/
ELECTRICITY MAPS: Electricity Maps, https://app.electricitymaps.com/map/live/fifteen_minutes
Food sector
AGRIBALYSE: Agribalyse, the French Environment Agency, ADEME https://agribalyse.ademe.fr/
CARBON CLOUD CLIMATE HUB: Carbon Cloud Climate Hub, https://apps.carboncloud.com/climatehub/
Building & construction sector
INIES: Inies, https://base-inies.fr/consultation/tableau-de-bord
ICE: Inventory of Carbon and Energy, Circular Ecology https://circularecology.com/embodied-carbon-footprint-database.html
Transport sector
GLOBAL LOGISTICS EMISSIONS COUNCIL: Global Logistics Emissions Council, GLEC Framework, https://www.smartfreightcentre.org/en/our-programs/emissions-accounting/global-logistics-emissions-council/calculate-report-glec-framework/
HBEFA: the handbook of emission factors for road transport, https://www.hbefa.net/
Healthcare & chemical sector
HEALTHCARE LCA: Healthcare LCA, Centre for Planetary Health & Sustainable Care, https://healthcarelca.com/
APHP: AP-HP Assistance publique - Hôpitaux de Paris, https://dispose.aphp.fr/userportal/#/shared/public/92jN23VozfrlaM3i/bc0c99fa-be02-4f4d-96b5-cb67d2a8b823
CARBON MINDS: Carbon Minds, https://www.carbon-minds.com/
Hospitality sector
CORNELL HOTEL SUSTAINABILITY BENCHMARKING INDEX: Cornell Hotel Sustainability Benchmarking Index, Greenview, https://greenview.sg/resources/chsb-index/
Cross-sector products & processes
ECOINVENT: Ecoinvent, https://ecoinvent.org/
INTERNATIONAL EPD SYSTEM: International EPD System, https://www.environdec.com/home
PEP: PEP Ecopassport, https://register.pep-ecopassport.org/pep/consult
IPE CHINA PRODUCTS CARBON FOOTPRINT FACTORS: IPE China Products Carbon Footprint Factors, https://wwwen.ipe.org.cn/LifeCycleAssessments/List.aspx
CBAM: EU carbon border adjustment mechanism, CBAM, https://taxation-customs.ec.europa.eu/carbon-border-adjustment-mechanism_en
Greenly emission factors
COMPANY REPORT: a monetary ratio that is computed by dividing a company’s Scope 1, 2, and 3 upstream emissions by its revenue; this also includes benchmarks of companies within the same sector. These are used in the financial transaction module to increase the accuracy of spend-based calculations by replacing average country-specific emission factors with supplier-specific data.
GREENLY MEF: a monetary ratio that is computed by dividing the average carbon footprint of a product by its average price. These are used in the financial transaction module to increase the accuracy of spend-based calculations by replacing emission factors computed using high-level Multi-Regional Input-Output (MRIO) tables with product-specific monetary emissions factors. The average carbon footprint of the product is sourced from renowned databases (e.g., ADEME Base Empreinte, the UK government conversion factors, EPA emission factors, Ecoinvent, etc.), and the average price is generally sourced from publicly available statistics.
COMPANY PRODUCT LCA: an emission factor based on a LCA of a specific product provided by a company.
GREENLY PRODUCT LCA: an emission factor based on a LCA of a specific product calculated by Greenly.
GREENLY IT: IT equipment emission factor based on LCAs provided by IT suppliers. These emission factors are sourced from reports published by the suppliers on their website.
GREENLY EXPERTS & WELOW EXPERTS: emission factors that are computed by Greenly experts.
RESEARCH PAPER: emission factors computed and published in a research paper. These are peer-reviewed articles that are published in renowned scientific journals. The exact citation of the research paper can be found in the methodology column of the emission factor.
PUBLIC AUTHORITY: other emission factors that are provided by public authorities that don’t yet have a specific category. The exact source and name of the public authority can be found in the methodology column of the emission factor.
DUMB EF: 1 kgCO2e/kgCO2e ratios that are used to import external calculations to the platform.
OTHER: other emission factors that don’t fit within any other sources;