SRSO eGRID Subregion - SERC South Emission Factor (2023)

EPA eGRID2023 Rev2 · States: GA, AL, MS, FL · Dirty

SRSO (SERC South) covers ZIP codes in GA (50%), AL (38%), MS (7%), FL (4%), by share of its ZIP codes. Its largest generation sources in 2023 were gas 55%, nuclear 20%, coal 15%. This page gives the official EPA eGRID2023 emission factors for SRSO, used for GHG Protocol Scope 2 location-based reporting.

Emission Factors

846.007

lb CO₂e / MWh

0.3837

kg CO₂e / kWh

29.88%

Carbon-free

9.53%

Renewable

The SRSO subregion is 10% dirtier than the US average (770.9 lb CO₂e/MWh).

All Pollutants

Pollutant	lb / MWh	kg / kWh	Scope
CO₂e (total GHG)	846.007	0.3837	Scope 2
CO₂	842.329	0.3821	Scope 2
CH₄ (methane)	0.056	0.00002540	Scope 2
N₂O (nitrous oxide)	0.008	0.00000363	Scope 2
NO_x	0.347	0.00015740	Air quality
SO₂	0.162	0.00007348	Air quality
CO₂ non-baseload	1385.997	0.6287	Avoided-emissions estimates (not Scope 2)

Generation Mix

Solar3.6%

Nuclear20.4%

Hydro2.4%

Natural Gas55.4%

Coal14.5%

Biomass3.6%

kWh to CO₂ Calculator

Enter electricity consumption (kWh):

Using SRSO emission factor: 846.007 lb CO₂e/MWh = 0.3837 kg/kWh. Source: EPA eGRID2023.

Data Source & Methodology

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: 846.007 lb/MWh or 0.3837 kg/kWh.

Get This Data via API

Query SRSO emission factors by ZIP code:

curl "https://emission-factors.com/api/lookup?zip=YOUR_ZIP"

Read the API docs - free, no key, no signup.

Subregions Serving the Same States

FRCC - FRCC All SRMV - SERC Mississippi Valley SRTV - SERC Tennessee Valley

Frequently Asked Questions

What is the SRSO emission factor for Scope 2 reporting?

The SRSO eGRID2023 Scope 2 location-based emission factor is 846.007 lb CO₂e per MWh (0.3837 kg CO₂e per kWh). This is the value to use in GHG Protocol location-based Scope 2 calculations for facilities in the SERC South subregion.

Which states are in the SRSO subregion?

SRSO (SERC South) covers ZIP codes in GA (50%), AL (38%), MS (7%), FL (4%), by share of its ZIP codes. Its largest generation sources in 2023 were gas 55%, nuclear 20%, coal 15%.

How do I convert kWh to kg CO₂e for SRSO?

Multiply kWh by 0.3837. Example: 50,000 kWh × 0.3837 = 19185 kg CO₂e (19.18 tonnes).

Query any US ZIP code via API

33,700+ ZIP codes · All 27 eGRID subregions · EPA eGRID2023 + eGRID2024 (Cornerstone)

Read the API docs · Scope 2 guide