Power plants in Oklahoma emitted 648.8 lb CO₂e per MWh generated in 2023 (0.2943 kg/kWh), 16% cleaner than the US average, according to EPA's eGRID2023 state rate. Their generation was 44% carbon-free and 44% renewable. For GHG Protocol Scope 2 location-based reporting, use the eGRID subregion factor of each facility's ZIP (below), not the state rate: power flows across state lines within a subregion.

648.8

lb CO₂e / MWh (state)

0.2943

kg CO₂e / kWh

44%

Carbon-free

44%

Renewable

eGRID Subregions in Oklahoma

Oklahoma's ZIP codes fall in 3 eGRID subregions. These are the Scope 2 factors; use the ZIP-level API to get the one for each facility.

Generation Mix

Generation by power plants in Oklahoma, 2023 (EPA eGRID2023 state resource mix).

kWh to CO₂ Calculator - Oklahoma

Enter electricity consumption (kWh):

Using the SPSO subregion factor (875.567 lb CO₂e/MWh = 0.3972 kg/kWh), which covers 98% of Oklahoma's ZIP codes; for other parts of the state look up the ZIP. Source: EPA eGRID2023.

How to Use Oklahoma'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 Oklahoma are in different subregions - use the API to get the exact factor by ZIP code.

Other States Served by the Same Subregions (state rates)

Frequently Asked Questions

What is Oklahoma's electricity emission factor?

For Scope 2 reporting, it depends on the ZIP: Oklahoma's ZIP codes are in SPSO (875.567 lb CO₂e/MWh, 98% of ZIPs), SRMW (1248.582 lb CO₂e/MWh, 1% of ZIPs), SPNO (867.74 lb CO₂e/MWh, 1% of ZIPs). EPA's state rate for plants in Oklahoma is 648.8 lb CO₂e/MWh, 16% cleaner than the US average.

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

Multiply the facility's annual kWh by the kg/kWh factor of its ZIP code's eGRID subregion to get kg CO₂e, and divide by 1,000 for metric tonnes. The emission factors API returns the factor for any ZIP.

How clean is Oklahoma's electricity grid?

Power plants in Oklahoma generated 44% carbon-free and 44% renewable electricity in 2023. At 649 lb CO₂e/MWh, the state rate is 16% cleaner than the US average of 770.9 lb/MWh.

Get exact emission factors by ZIP code

33,700+ ZIP codes · All 27 eGRID subregions · CO₂e, NOx, SO₂, generation mix

Read the API docs · Scope 2 calculation guide

Subregion	Name	lb CO₂e/MWh	kg/kWh	Carbon-free	Share of OK ZIPs
SPSO	SPP South	875.567	0.3972	36.74%	98%
SRMW	SERC Midwest	1248.582	0.5663	31.62%	1%
SPNO	SPP North	867.74	0.3936	54.17%	1%

Oklahoma Electricity Emission Factor 2023