Power plants in New Mexico emitted 773.6 lb CO₂e per MWh generated in 2023 (0.3509 kg/kWh), about the same as the US average, according to EPA's eGRID2023 state rate. Their generation was 45% carbon-free and 45% 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.

773.6

lb CO₂e / MWh (state)

0.3509

kg CO₂e / kWh

45%

Carbon-free

45%

Renewable

eGRID Subregions in New Mexico

New Mexico's ZIP codes fall in 4 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 New Mexico, 2023 (EPA eGRID2023 state resource mix).

kWh to CO₂ Calculator - New Mexico

Enter electricity consumption (kWh):

Using the AZNM subregion factor (706.189 lb CO₂e/MWh = 0.3203 kg/kWh), which covers 82% of New Mexico's ZIP codes; for other parts of the state look up the ZIP. Source: EPA eGRID2023.

How to Use New Mexico'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 New Mexico 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 New Mexico's electricity emission factor?

For Scope 2 reporting, it depends on the ZIP: New Mexico's ZIP codes are in AZNM (706.189 lb CO₂e/MWh, 82% of ZIPs), SPSO (875.567 lb CO₂e/MWh, 14% of ZIPs), NWPP (635.267 lb CO₂e/MWh, 3% of ZIPs), ERCT (736.629 lb CO₂e/MWh, 1% of ZIPs). EPA's state rate for plants in New Mexico is 773.6 lb CO₂e/MWh, about the same as the US average.

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

Power plants in New Mexico generated 45% carbon-free and 45% renewable electricity in 2023. At 774 lb CO₂e/MWh, the state rate is about the same as 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 NM ZIPs
AZNM	WECC Southwest	706.189	0.3203	40.27%	82%
SPSO	SPP South	875.567	0.3972	36.74%	14%
NWPP	WECC Northwest	635.267	0.2882	58.25%	3%
ERCT	ERCOT All	736.629	0.3341	37.24%	1%

New Mexico Electricity Emission Factor 2023