Mid-Atlantic grid covering Pennsylvania through Maryland via PJM. This page provides the official EPA eGRID2023 electricity emission factors for the RFCE subregion, used for GHG Protocol Scope 2 location-based emissions reporting.
The RFCE subregion is 22% cleaner than the US average (770.9 lb CO2e/MWh).
| Pollutant | lb / MWh | kg / kWh | Scope |
|---|---|---|---|
| CO2e (total GHG) | 599.17 | 0.2718 | Scope 2 |
| CO2 | 596.904 | 0.2708 | Scope 2 |
| CH4 (methane) | 0.036 | 0.00001633 | Scope 2 |
| N2O (nitrous oxide) | 0.005 | 0.00000227 | Scope 2 |
| NOx | 0.202 | 0.00009163 | Air quality |
| SO2 | 0.212 | 0.00009616 | Air quality |
| CO2 non-baseload | 1175.606 | 0.5332 | Scope 2 (marginal) |
Using RFCE emission factor: 599.17 lb CO2e/MWh = 0.2718 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: 599.17 lb/MWh or 0.2718 kg/kWh.
Primary utility: PECO Energy
Query RFCE emission factors by ZIP code:
curl "https://emission-factors.com/api/lookup?zip=YOUR_ZIP"
Read the API docs - free, no key, no signup.
The RFCE eGRID2023 Scope 2 location-based emission factor is 599.17 lb CO2e per MWh (0.2718 kg CO2e per kWh). This is the value to use in GHG Protocol location-based Scope 2 calculations for facilities in the RFC East subregion.
The RFCE (RFC East) eGRID subregion covers: PA, NJ, DE, MD, DC. Mid-Atlantic grid covering Pennsylvania through Maryland via PJM.
Multiply kWh by 0.2718. Example: 50,000 kWh × 0.2718 = 13590 kg CO2e (13.59 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