Power plants in Texas emitted 771.2 lb CO₂e per MWh generated in 2023 (0.3498 kg/kWh), about the same as the US average, according to EPA's eGRID2023 state rate. Their generation was 35% carbon-free and 27% 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.

771.2

lb CO₂e / MWh (state)

0.3498

kg CO₂e / kWh

35%

Carbon-free

27%

Renewable

eGRID Subregions in Texas

Texas'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

kWh to CO₂ Calculator - Texas

Enter electricity consumption (kWh):

Using the ERCT subregion factor (736.629 lb CO₂e/MWh = 0.3341 kg/kWh), which covers 80% of Texas's ZIP codes; for other parts of the state look up the ZIP. Source: EPA eGRID2023.

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

For Scope 2 reporting, it depends on the ZIP: Texas's ZIP codes are in ERCT (736.629 lb CO₂e/MWh, 80% of ZIPs), SPSO (875.567 lb CO₂e/MWh, 10% of ZIPs), SRMV (741.741 lb CO₂e/MWh, 8% of ZIPs), AZNM (706.189 lb CO₂e/MWh, 2% of ZIPs). EPA's state rate for plants in Texas is 771.2 lb CO₂e/MWh, about the same as the US average.

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

Power plants in Texas generated 35% carbon-free and 27% renewable electricity in 2023. At 771 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 TX ZIPs
ERCT	ERCOT All	736.629	0.3341	37.24%	80%
SPSO	SPP South	875.567	0.3972	36.74%	10%
SRMV	SERC Mississippi Valley	741.741	0.3364	25.1%	8%
AZNM	WECC Southwest	706.189	0.3203	40.27%	2%

Texas Electricity Emission Factor 2023