Mississippi Electricity Emission Factor 2023

EPA eGRID2023 Rev2 · 4 eGRID subregions · Dirty

Mississippi's electricity grid has a CO₂e emission factor of 841.7 lb/MWh (0.3818 kg/kWh) - 9% dirtier than the US average. The grid is 33% carbon-free and 15% renewable. These are the official EPA eGRID2023 values used for GHG Protocol Scope 2 location-based emissions reporting.

841.7

lb CO₂e / MWh

0.3818

kg CO₂e / kWh

33%

Carbon-free

15%

Renewable

eGRID Subregions in Mississippi

Mississippi spans 4 eGRID subregions. Use the ZIP-level API to get the exact factor for each facility.

Subregion	Name	lb CO₂e/MWh	kg/kWh	Carbon-free	Rating
SRMV	SERC Mississippi Valley	741.741	0.3364	25.12%	Average
SRSO	SERC South	846.007	0.3837	29.9%	Dirty
SRTV	SERC Tennessee Valley	903.306	0.4097	41.9%	Dirty
SPSO	SPP South	875.567	0.3972	36.77%	Dirty

Generation Mix

Solar0.7%

Nuclear22.1%

Hydro1.3%

Natural Gas65.3%

Coal8.2%

Biomass1.0%

Other Fossil1.2%

Generation mix shown for SRMV (primary subregion). See subregion pages for full breakdowns.

Electricity cost in Mississippi

Latest monthly state-level average rate (EIA Form 861, 2026-04):

Sector	$/kWh
Residential	$0.1676
Commercial	$0.1412
Industrial	$0.0746
All sectors	$0.1231

State-level averages, not utility-specific tariffs. For exact pricing, check your utility's published rate schedule.

24-hour grid carbon profile

Average hourly CO₂e intensity across the last 7 days from Midcontinent ISO (MS's balancing authority). Red = dirtiest, green = cleanest. Data: EIA-930 (~24h lag).

Hours in local standard time. Swing: 1.22× between cleanest (11:00 local) and dirtiest (21:00 local).

Read full guide on hourly grid carbon intensity →

Derived metrics for Mississippi

Carbon cost of electricity: $498 per tonne CO₂e (residential rate ÷ grid intensity)
Annual per-capita CO₂e from electricity: 5,302 kg/yr (15.8k kWh × grid factor)
10,000 mi/yr EV emissions: 1009 kg CO₂e (at 0.30 kWh/mi)
Same miles in gas car: ~4,000 kg CO₂e (400 g/mi baseline)
EV vs gas savings: 75% cleaner
Grid trend 2018-2023: -13.6% (cleaner)

kWh to CO₂ Calculator - Mississippi

Enter electricity consumption (kWh):

Using Mississippi average: 841.7 lb CO₂e/MWh = 0.3818 kg/kWh. Source: EPA eGRID2023.

How to Use Mississippi's Emission Factor for Scope 2 Reporting

For GHG Protocol Scope 2 location-based emissions reporting, multiply each facility's electricity consumption by the emission factor for its ZIP code's eGRID subregion. Facilities in different parts of Mississippi may be in different subregions - use the API to get the exact factor by ZIP code.

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

Compare with Other States

Alabama

875 lb/MWh

Arkansas

955 lb/MWh

Georgia

782 lb/MWh

Kentucky

910 lb/MWh

Louisiana

809 lb/MWh

North Carolina

782 lb/MWh

Mississippi

842 lb/MWh

Frequently Asked Questions

What is Mississippi's electricity emission factor?

Mississippi's EPA eGRID2023 electricity emission factor is 841.7 lb CO₂e per MWh (0.3818 kg per kWh). This is 9% dirtier than the US national average.

How do I calculate Scope 2 emissions for a Mississippi facility?

Multiply the facility's annual kWh consumption by 0.3818 to get kg CO₂e. Divide by 1,000 for metric tonnes. For facilities spanning multiple Mississippi subregions, use the emission factors API to get the exact factor by ZIP code.

How clean is Mississippi's electricity grid?

Mississippi's grid is 33% carbon-free and 15% renewable. At 842 lb CO₂e/MWh, it is 9% dirtier than the US average of 770.9 lb/MWh.

Get exact emission factors by ZIP code

33,616 ZIP codes · All 27 eGRID subregions · CO₂e, NOx, SO₂, generation mix

Read the API docs · Scope 2 calculation guide