Ohio Valley and Great Lakes region - historically coal-heavy, rapidly adding wind and solar. This page provides the official EPA eGRID2023 electricity emission factors for the RFCW subregion, used for GHG Protocol Scope 2 location-based emissions reporting.
The RFCW subregion is 19% dirtier than the US average (770.9 lb CO2e/MWh).
| Pollutant | lb / MWh | kg / kWh | Scope |
|---|---|---|---|
| CO2e (total GHG) | 916.054 | 0.4155 | Scope 2 |
| CO2 | 911.424 | 0.4134 | Scope 2 |
| CH4 (methane) | 0.071 | 0.00003221 | Scope 2 |
| N2O (nitrous oxide) | 0.01 | 0.00000454 | Scope 2 |
| NOx | 0.422 | 0.00019142 | Air quality |
| SO2 | 0.412 | 0.00018688 | Air quality |
| CO2 non-baseload | 1757.358 | 0.7971 | Scope 2 (marginal) |
Using RFCW emission factor: 916.054 lb CO2e/MWh = 0.4155 kg/kWh. Source: EPA eGRID2023.
These emission factors are from EPA eGRID2023 Rev2 (released June 2025), the official US government source for grid electricity emission rates. eGRID uses annual net generation and emissions data from all US power plants to calculate subregion-level output emission rates.
For GHG Protocol Scope 2 reporting, use the CO2e total output emission rate: 916.054 lb/MWh or 0.4155 kg/kWh.
Primary utility: AEP Ohio
Query RFCW emission factors by ZIP code:
curl "https://emission-factors.com/api/lookup?zip=YOUR_ZIP"
Read the API docs - free, no key, no signup.
MROE - MRO East MROW - MRO West RFCE - RFC East RFCM - RFC Michigan
The RFCW eGRID2023 Scope 2 location-based emission factor is 916.054 lb CO2e per MWh (0.4155 kg CO2e per kWh). This is the value to use in GHG Protocol location-based Scope 2 calculations for facilities in the RFC West subregion.
The RFCW (RFC West) eGRID subregion covers: OH, IN, KY, IL, WI, MI, MO, PA. Ohio Valley and Great Lakes region - historically coal-heavy, rapidly adding wind and solar.
Multiply kWh by 0.4155. Example: 50,000 kWh × 0.4155 = 20775 kg CO2e (20.77 tonnes).
Query any US ZIP code via API
33,616 ZIP codes · All 27 eGRID subregions · EPA eGRID2023 + 2024 preliminary
Read the API docs · Scope 2 guide