Platts proposes to update methodology for previous year Singapore, India, Mexico I-RECs assessments, June 1

Platts, part of S&P Global Energy, proposes to update its previous-year Singapore, India and Mexico assessments to give priority to second-half vintages during the later part of the year, effective June 1, 2026.

The previous-year assessments currently reflect full-year vintage. The proposed change means that from Jan. 1 to May 31, the assessments would reflect the full-year vintages. From June 1 every year, H2 vintage information will be given priority over full-year vintage trades in the assessment process. Any H1 information received after June 1 of the year may be considered and normalized for assessment purposes, wherever possible.

This change intends to align assessments with market feedback, indicating that the majority of trade activity for the previous year's vintage, from June 1 until the end of the year, is concentrated on the H2 previous-year vintage.

This also aligns with CDP reporting frameworks used by RE100 companies, which recommend a total 21-month vintage limitation window -- six months before the start of the reporting period, the 12-month reporting period itself and three months after the period ends.

The assessments that would be impacted by this change are as follows

Current-year and forward-year assessments would not be affected by this change and continue to reflect full-year vintage.

The affected assessments are found in the fixed pages PEP1102, PEP1105, CLE2201, EVA2009 and EVA2002, as well as in Platts REC Daily, Platts Megawatt Daily and Platts European Power Daily.

Please send all comments, feedback, and questions to global_renewables@spglobal.com and pricegroup@spglobal.com by May 22, 2026.

For written comments, please provide a clear indication if comments are not intended for publication by Platts for public viewing. Platts will consider all comments received and make comments not marked as confidential available upon request.