SRMV eGRID Subregion - SERC Mississippi Valley Emission Factor (2023)

EPA eGRID2023 Rev2 · States: AR, LA, MS, TX, MO · Average

SRMV (SERC Mississippi Valley) covers ZIP codes in AR (43%), LA (29%), MS (14%), TX (13%), MO (1%), by share of its ZIP codes. Its largest generation sources in 2023 were gas 65%, nuclear 22%, coal 8%. This page gives the official EPA eGRID2023 emission factors for SRMV, used for GHG Protocol Scope 2 location-based reporting.

Emission Factors

741.741

lb CO₂e / MWh

0.3364

kg CO₂e / kWh

25.1%

Carbon-free

3.02%

Renewable

The SRMV subregion is 4% cleaner than the US average (770.9 lb CO₂e/MWh).

All Pollutants

Pollutant	lb / MWh	kg / kWh	Scope
CO₂e (total GHG)	741.741	0.3364	Scope 2
CO₂	739.72	0.3355	Scope 2
CH₄ (methane)	0.032	0.00001451	Scope 2
N₂O (nitrous oxide)	0.004	0.00000181	Scope 2
NO_x	0.488	0.00022135	Air quality
SO₂	0.351	0.00015921	Air quality
CO₂ non-baseload	1145.487	0.5196	Avoided-emissions estimates (not Scope 2)

Generation Mix

Solar0.8%

Nuclear22.1%

Hydro1.3%

Natural Gas65.2%

Coal8.2%

Biomass1.0%

Other Fossil1.3%

kWh to CO₂ Calculator

Enter electricity consumption (kWh):

Using SRMV emission factor: 741.741 lb CO₂e/MWh = 0.3364 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: 741.741 lb/MWh or 0.3364 kg/kWh.

Get This Data via API

Query SRMV 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

AZNM - WECC Southwest ERCT - ERCOT All SPNO - SPP North SPSO - SPP South

Frequently Asked Questions

What is the SRMV emission factor for Scope 2 reporting?

The SRMV eGRID2023 Scope 2 location-based emission factor is 741.741 lb CO₂e per MWh (0.3364 kg CO₂e per kWh). This is the value to use in GHG Protocol location-based Scope 2 calculations for facilities in the SERC Mississippi Valley subregion.

Which states are in the SRMV subregion?

How do I convert kWh to kg CO₂e for SRMV?

Multiply kWh by 0.3364. Example: 50,000 kWh × 0.3364 = 16820 kg CO₂e (16.82 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