ERCT eGRID Subregion - ERCOT All Emission Factor (2023)

EPA eGRID2023 Rev2 · States: TX · Average

ERCT (ERCOT All) covers ZIP codes in TX (100%), by share of its ZIP codes. Its largest generation sources in 2023 were gas 50%, wind 23%, coal 13%. This page gives the official EPA eGRID2023 emission factors for ERCT, used for GHG Protocol Scope 2 location-based reporting.

Emission Factors

736.629

lb CO₂e / MWh

0.3341

kg CO₂e / kWh

37.24%

Carbon-free

28.71%

Renewable

The ERCT subregion is 4% cleaner than the US average (770.9 lb CO₂e/MWh).

All Pollutants

Pollutant	lb / MWh	kg / kWh	Scope
CO₂e (total GHG)	736.629	0.3341	Scope 2
CO₂	733.862	0.3329	Scope 2
CH₄ (methane)	0.043	0.00001950	Scope 2
N₂O (nitrous oxide)	0.006	0.00000272	Scope 2
NO_x	0.443	0.00020094	Air quality
SO₂	0.319	0.00014470	Air quality
CO₂ non-baseload	1242.733	0.5637	Avoided-emissions estimates (not Scope 2)

Generation Mix

Solar5.9%

Wind22.6%

Nuclear8.5%

Natural Gas49.6%

Coal12.7%

kWh to CO₂ Calculator

Enter electricity consumption (kWh):

Using ERCT emission factor: 736.629 lb CO₂e/MWh = 0.3341 kg/kWh. Source: EPA eGRID2023.

Data Source & Methodology

These emission factors are from EPA eGRID2023 Rev2 (released June 2025), the official US government source for grid electricity emission rates. eGRID uses annual net generation and emissions data from all US power plants to calculate subregion-level output emission rates.

For GHG Protocol Scope 2 reporting, use the CO₂e total output emission rate: 736.629 lb/MWh or 0.3341 kg/kWh.

Get This Data via API

Query ERCT emission factors by ZIP code:

curl "https://emission-factors.com/api/lookup?zip=YOUR_ZIP"

Read the API docs - free, no key, no signup.

Subregions Serving the Same States

AZNM - WECC Southwest SPSO - SPP South SRMV - SERC Mississippi Valley

Frequently Asked Questions

What is the ERCT emission factor for Scope 2 reporting?

The ERCT eGRID2023 Scope 2 location-based emission factor is 736.629 lb CO₂e per MWh (0.3341 kg CO₂e per kWh). This is the value to use in GHG Protocol location-based Scope 2 calculations for facilities in the ERCOT All subregion.

Which states are in the ERCT subregion?

ERCT (ERCOT All) covers ZIP codes in TX (100%), by share of its ZIP codes. Its largest generation sources in 2023 were gas 50%, wind 23%, coal 13%.

How do I convert kWh to kg CO₂e for ERCT?

Multiply kWh by 0.3341. Example: 50,000 kWh × 0.3341 = 16705 kg CO₂e (16.70 tonnes).

Query any US ZIP code via API

33,700+ ZIP codes · All 27 eGRID subregions · EPA eGRID2023 + eGRID2024 (Cornerstone)

Read the API docs · Scope 2 guide