Platts launches weekly, monthly and quarterly averages for European Emission Allowances

Platts, part of S&P Global Commodity Insights, has launched weekly, monthly, and quarterly averages for its existing EU Emission Allowance (EUA) assessments effective May 1.

The monthly averages will begin publishing on May 1, the weekly averages on May 2, and the quarterly averages on July 1.

The weekly average is calculated as the mean of the daily assessments published during any given calendar week. Similarly, the monthly and quarterly averages are calculated as the mean of the daily assessments published during a given calendar month or quarter, respectively.

The first weekly average takes into account all of the business days of that week.

The first monthly average take s into account all of the business days of the month of April.

Likewise, the first quarterly average takes into account all business days of the second quarter of 2025.

The weekly, monthly, and quarterly averages will be published for the EUA Nearest December, EUA Nearest December +1, and EUA Nearest December +2 assessments, respectively.

This decision comes amid the upcoming implementation of the EU's Carbon Border Adjustment Mechanism (CBAM), which will use the weekly average of EU emissions trading system prices as an input to calculate the price of CBAM certificates in the next few years.

Once CBAM is implemented, there is expectation that the quarterly EUA average price will be used as an input in the interim.

Details of the new averages are as follows:

The weekly averages appear in Carbon Markets Daily and in the fixed pages CMA2034 and ETA2034. The monthly averages appear in CMA2035 and ETA2035. The quarterly averages appear in CMA2036 and ETA2036.

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