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Labeling of Electricity

The purpose of PUCT Substantive Rule 25.476 is to establish the procedures by which REPs calculate and compose their renewable content pursuant to §25.475, General Retail Electric Provider Requirements and Information Disclosures to Residential and Small Commercial Customers, and to establish guidelines and verification for claims of "green" products. For questions concerning Labeling of Electricity, email electricitylabel@ercot.com.

Generation and Emissions Forms

Forms used by each owner of Texas-based Generators to submit to ERCOT the following data: net generation in MWh from each of its generating units in Texas; the type of fuel used by each of its generating units in Texas; and the MWh-weighted average annual emissions rate, on an aggregate basis for all of its generating units in Texas for carbon dioxide, nitrogen oxides, particulates, sulfur dioxide, and nuclear waste.


Renewable Content Calculator
Archived Renewable Calculators EFL Workbooks for Years 2009 through 2024
Jan 30, 2026 - zip - 958.1 KB
Generators with EPS Meters
A DocuSign file will be provided to the Authorized Rep for the Resource Entity to use for the 2025 reporting for the Emissions reporting process on February 2, 2026.
Jan 30, 2026 - xlsx - 52.8 KB
2025 Generators with NO EPS Meters
2025 Generator with EPS Meter forms must be submitted to ERCOT March 1, 2026
Jan 30, 2026 - xlsx - 42.7 KB
Archived Renewable Content Calculator EFL Workbook
Archived Renewable Calculators EFL Workbooks for Years 2009 through 2023
Jan 29, 2025 - zip - 883.3 KB
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