Power plants in Wyoming emitted 1833.3 lb CO₂e per MWh generated in 2023 (0.8316 kg/kWh), 138% dirtier than the US average, according to EPA's eGRID2023 state rate. Their generation was 23% carbon-free and 23% 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.

1833.3

lb CO₂e / MWh (state)

0.8316

kg CO₂e / kWh

23%

Carbon-free

23%

Renewable

eGRID Subregions in Wyoming

Wyoming'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

kWh to CO₂ Calculator - Wyoming

Enter electricity consumption (kWh):

Using the RMPA subregion factor (1042.539 lb CO₂e/MWh = 0.4729 kg/kWh), which covers 55% of Wyoming's ZIP codes; for other parts of the state look up the ZIP. Source: EPA eGRID2023.

How to Use Wyoming'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 Wyoming 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 Wyoming's electricity emission factor?

For Scope 2 reporting, it depends on the ZIP: Wyoming's ZIP codes are in RMPA (1042.539 lb CO₂e/MWh, 55% of ZIPs), NWPP (635.267 lb CO₂e/MWh, 40% of ZIPs), MROW (926.552 lb CO₂e/MWh, 5% of ZIPs). EPA's state rate for plants in Wyoming is 1833.3 lb CO₂e/MWh, 138% dirtier than the US average.

How do I calculate Scope 2 emissions for a Wyoming 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 Wyoming's electricity grid?

Power plants in Wyoming generated 23% carbon-free and 23% renewable electricity in 2023. At 1833 lb CO₂e/MWh, the state rate is 138% dirtier 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 WY ZIPs
RMPA	WECC Rockies	1042.539	0.4729	41.85%	55%
NWPP	WECC Northwest	635.267	0.2882	58.25%	40%
MROW	MRO West	926.552	0.4203	51.34%	5%

Wyoming Electricity Emission Factor 2023