Platts proposes to launch certified UK subsidized waste biomethane GO price assessments Sept. 1

Platts, part of S&P Global Commodity Insights, proposes to launch daily price assessments for certified UK subsidized waste feedstock biomethane guarantees of origin on Sept. 1, 2025.

This proposal reflects the growing trade and increased fungibility of UK waste Renewable Gas Guarantees of Origin that have attained ISCC certification. An increasing number of UK production sites have now attained ISCC certification. Certified waste RGGOs also have greater access to continental European markets, given the greater granularity of data provided by the Proof of Sustainability that accompanies certified volumes.

Platts proposes to launch daily assessments for current-year and year-ahead vintages for certified UK subsidized waste RGGOs and utilize the carbon intensity value definition for waste certificates of 25.00 g to 0 g CO2e/MJ, reflecting a minimum trade volume of 1 GWh.

The proposed spot assessment would reflect transactions for immediate delivery where contracts have a minimum validity of three months from the date of transaction. The proposed forward-year assessment would reflect transactions for delivery in the next calendar year of contracts that are issued in that same calendar year.

The proposed assessments would be published in GBP/MWh with a conversion published in Eur/MWh.

Certification is considered a voluntary standard achieved by a producer of biomethane, which the market accepts as improving fungibility of the associated guarantee of origin. This includes, but is not exclusive to, standards such as ISCC and REDCert.

The assessments would be published on a 1630 London timestamp and follow the UK holiday calendar.

Platts invites all questions and feedback to platts_carbon@spglobal.comand pricegroup@spglobal.com, by July 18.

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 will make comments not marked as confidential available upon request.