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Data Sources

All data sources used in Commit Carbon with licensing information.

Grid Carbon Intensity

IEA Emissions Factors (Default)

  • Source: International Energy Agency, World Energy Outlook
  • URL: https://iea.org
  • Coverage: Global, country level
  • Granularity: Annual averages
  • License: Free with attribution to IEA
  • Update frequency: Annual
  • Used in: Default grid adapter, bundled with CLI

EPA eGRID (US Subnational)

  • Source: US Environmental Protection Agency, eGRID 2022
  • URL: https://epa.gov/egrid
  • Coverage: US subnational (eGRID subregions, mapped to states)
  • Granularity: Annual averages
  • License: Public domain (US government work)
  • Update frequency: Annual
  • Used in: US subnational grid adapter, bundled with CLI

Electricity Maps (Real-time, Optional)

  • Source: Electricity Maps
  • URL: https://electricitymaps.com
  • Coverage: Global, zone level
  • Granularity: Hourly, real-time
  • License: Commercial (free tier available)
  • API key: Required for access
  • Used in: Optional real-time grid adapter

WattTime (Real-time, Optional)

  • Source: WattTime
  • URL: https://watttime.org
  • Coverage: Global
  • Granularity: Real-time marginal emissions
  • License: Commercial
  • API key: Required for access
  • Used in: Optional real-time grid adapter

Energy Factor Sources

Luccioni et al. 2023

  • Paper: "Power Hungry Processing: Watts Driving the Cost of AI Deployment"
  • How used: Primary source for inference energy estimates per token
  • License: Academic publication (cited, not reproduced)

Patterson et al. 2021

  • Paper: "Carbon Emissions and Large Neural Network Training"
  • How used: Methodological reference for carbon accounting approaches
  • License: arXiv preprint (cited, not reproduced)

Equivalents

EPA Greenhouse Gas Equivalencies Calculator

World Average Fallback

  • Value: 475 gCO2e/kWh
  • Source: IEA World Energy Outlook 2024
  • Used when: No regional grid data available