Energy Transition, Carbon, Emissions

August 15, 2025

Platts clarifies vintages reflected in its Alberta TIER price assessments

Platts, part of S&P Global Commodity Insights, wishes to clarify the vintage window reflected in its Alberta TIER Emission Performance Credit (EPC) and Alberta Emission Offset (AEO) assessments.

Platts reflects bids, offers and trades with a five-year vintage window for both its EPC and AEO assessments.

The vintage ranges reflected by the EPC and AEO assessments are as follows:

Price AssessmentVintage reflected
Alberta Emission Performance Credit2021-2025
Alberta Emission Offset2021-2025

The vintages will roll annually on the first working day of the third quarter, following the compliance deadline of June 30.

Please send any feedback, comments or questions to platts_carbon@spglobal.com and pricegroup@spglobal.com.

For written comments, please provide a clear indication if the comments are not intended for publication by Platts for public viewing.

Platts will consider all comments received and will make comments not marked as confidential available upon request.