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Emission Factors

io.github.rozetyp/emission-factors · v1.8.0

Measured by MCP Station

Description written by the publisher, not verified

Keyless US grid carbon + power cost by ZIP: eGRID Scope 2, Scope 1 fuels, site ranking, clean hours

Connect

claude mcp add --transport http emission-factors https://emission-factors.com/mcp

{
  "mcpServers": {
    "emission-factors": {
      "url": "https://emission-factors.com/mcp"
    }
  }
}

Tools as reported by the server

• lookup_emission_factor
  Look up EPA eGRID electricity emission factors for a US ZIP code. Returns CO2e (kg/kWh and lb/MWh), CO2, CH4, N2O, NOx, SO2, non-baseload rate, carbon-free %, generation mix (coal/gas/nuclear/hydro/wind/solar etc.), eGRID subregion code, the data year, and the Green-e residual mix rate (the market-b
• lookup_by_coordinates
  Look up emission factors by latitude/longitude. Uses US Census Geocoder to resolve to ZIP first, then returns the same data as lookup_emission_factor. Useful when you have a facility address or lat/lon but no ZIP.
• lookup_batch
  Look up emission factors for up to 100 ZIP codes in one call (split longer lists). Returns one compact row per ZIP - subregion, CO2e kg/kWh (location-based), residual mix (market-based), carbon-free %, utility - unless full is true, which returns every field (about 2 KB per ZIP).
• calculate_emissions
  Calculate Scope 2 CO2e for a facility from its ZIP and kWh, using both GHG Protocol methods: location-based (eGRID subregion rate) and market-based (Green-e residual mix applied to kWh not covered by RECs, PPAs or green tariffs). Returns kg CO2e for each method with the factors used.
• hourly_intensity
  Get hourly grid carbon intensity (kg CO2e per kWh) for any US ZIP code, derived from EIA-930 hourly fuel-mix data. Data lags up to about a day (not real-time). Returns time series with per-hour fuel mix, total generation, and carbon intensity. For timing and analysis (demand response, load shifting,
• plant_emissions
  Get emissions from EPA Clean Air Markets Division (CAMD) for a specific US power plant or a state: fossil units over 25 MW reporting to the Acid Rain Program and CSAPR. Per facility returns total CO2 (short tons), gross generation (MWh), heat input (mmBtu), NOx and SO2 (lb), primary fuel type, opera
• utility_tariff
  Get the actual utility-specific electricity rate (not state average) for a US ZIP code or named utility. Returns the current default tariff with effective rate ($/kWh), fixed monthly charge, tier count, TOU indicator, and effective date. Data source: OpenEI URDB (NREL-hosted). With a ZIP, matches th
• electricity_rate
  Get the latest monthly average retail electricity rate ($/kWh and cents/kWh) for any US ZIP code, broken out by sector (residential, commercial, industrial, etc.). Data is state-level from EIA Form 861 - a ballpark, not utility- or ZIP-specific tariffs (use utility_tariff for those).
• compare_sites
  Compare and rank 2-25 candidate US sites (ZIP codes) for a facility, data center or EV/flexible load on grid carbon and electricity cost in one call. Per site: eGRID CO2e kg/kWh (location-based), Green-e residual mix (market-based), carbon-free %, $/kWh for the sector (the state's latest full-year a
• cleanest_hours
  Find the cleanest (lowest grid carbon) contiguous window of N hours in the day to run a flexible load (batch jobs, EV charging, pumping, HVAC pre-cooling) at a US ZIP code or balancing authority. Based on the hour-of-day pattern of the last 7 days (168 hours) of EIA-930 data, in local time. Returns
• calculate_fuel_emissions
  Calculate Scope 1 stationary-combustion emissions (CO2, CH4, N2O and CO2e) for fuels burned on site, using the GHG Emission Factors Hub 2026 (Cornerstone, successor to EPA's Hub; IPCC AR6 GWPs) by default, or EPA's 2025 edition (AR5) with edition=2025. Pass one or more items with fuel, quantity and

Tool changes

• 2026-10-20: lookup_emission_factor, lookup_by_coordinates, lookup_batch, calculate_emissions, hourly_intensity, plant_emissions, utility_tariff, electricity_rate, compare_sites, cleanest_hours, calculate_fuel_emissions
• 2026-10-16: lookup_emission_factor, lookup_by_coordinates, lookup_batch, calculate_emissions, hourly_intensity, plant_emissions, utility_tariff, electricity_rate, compare_sites, cleanest_hours, calculate_fuel_emissions

Repository · Website · JSON · Text for agents · Registry updated 2026-10-19