Arkansas Electricity Emission Factor 2023

EPA eGRID2023 Rev2 · 3 eGRID subregions · Dirty

Arkansas's electricity grid has a CO₂e emission factor of 955.3 lb/MWh (0.4333 kg/kWh) - 24% dirtier than the US average. The grid is 31% carbon-free and 18% renewable. These are the official EPA eGRID2023 values used for GHG Protocol Scope 2 location-based emissions reporting.

955.3

lb CO₂e / MWh

0.4333

kg CO₂e / kWh

31%

Carbon-free

18%

Renewable

eGRID Subregions in Arkansas

Arkansas spans 3 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
SPSO	SPP South	875.567	0.3972	36.77%	Dirty
SRMV	SERC Mississippi Valley	741.741	0.3364	25.12%	Average
SRMW	SERC Midwest	1248.582	0.5663	31.6%	Very Dirty

Generation Mix

Wind32.6%

Hydro2.5%

Natural Gas46.2%

Coal16.2%

Biomass1.2%

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

Electricity cost in Arkansas

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

Sector	$/kWh
Residential	$0.1416
Commercial	$0.1104
Industrial	$0.062
All sectors	$0.096

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 Southwest Power Pool (AR's balancing authority). Red = dirtiest, green = cleanest. Data: EIA-930 (~24h lag).

Hours in local standard time. Swing: 1.18× between cleanest (01:00 local) and dirtiest (04:00 local).

Read full guide on hourly grid carbon intensity →

Derived metrics for Arkansas

Carbon cost of electricity: $421 per tonne CO₂e (residential rate ÷ grid intensity)
Annual per-capita CO₂e from electricity: 5,171 kg/yr (15.4k 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 - Arkansas

Enter electricity consumption (kWh):

Using Arkansas average: 955.3 lb CO₂e/MWh = 0.4333 kg/kWh. Source: EPA eGRID2023.

How to Use Arkansas'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 Arkansas 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

Illinois

1030 lb/MWh

Iowa

1088 lb/MWh

Kansas

1058 lb/MWh

Louisiana

809 lb/MWh

Mississippi

842 lb/MWh

Missouri

990 lb/MWh

Arkansas

955 lb/MWh

Frequently Asked Questions

What is Arkansas's electricity emission factor?

Arkansas's EPA eGRID2023 electricity emission factor is 955.3 lb CO₂e per MWh (0.4333 kg per kWh). This is 24% dirtier than the US national average.

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

Multiply the facility's annual kWh consumption by 0.4333 to get kg CO₂e. Divide by 1,000 for metric tonnes. For facilities spanning multiple Arkansas subregions, use the emission factors API to get the exact factor by ZIP code.

How clean is Arkansas's electricity grid?

Arkansas's grid is 31% carbon-free and 18% renewable. At 955 lb CO₂e/MWh, it is 24% 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