TDD Documentation

Documentation for TDD Gas
DESCRIPTION FILES FOR DOWNLOAD

TDD Model Version 3.16 for the Year 2026

TDD Model Version 3.16 for the Year 2026.zip

TDD Model Version 3.15 for the Year 2025

 

TDD Model Version 3.15 for the Year 2025.zip

TDD Model Version 3.14 for the Year 2024

TDD Model Version 3.14 for the Year 2024.zip

TDD Model Version 3.13 for the Year 2023

TDD Model Version 3.13 for the Year 2023.zip

The files Normalized TDD.xlsx and Recalculated TDD.xlsx are included inside the ZIP packages.

In the TDD model version 3.16 for the year 2026, the recalculated TDD values are currently available only until September 30, 2025. An update of the recalculated TDD values, including the last quarter of 2025, will take place at the beginning of January 2026.