Agriculture, Energy Transition, Electric Power, Biofuel, Renewables
January 02, 2026
Platts changes EU Guarantees of Origin assessments to AIB Guarantees of Origin
Platts, part of S&P Global Energy, has changed the specification of its EU Guarantees of Origin price assessments to AIB Guarantees of Origin, effective Jan. 2, 2026.
Platts published its decision to make the change on Dec. 5, available here.
This change means that the GO prices reflect certificates of origin in the AIB member countries that have European Energy Certification System (EECS) certification.
Prior to the change effective Jan. 2, 2026, Platts EU GO assessments reflected EU Wind, EU Solar and EU Biomass from EU member states with EECS certification. The AIB aggregates national registry data from each AIB member country.
This change aims to make Platts GO assessments more reflective of the contracts traded in the European market and better define the country origin of the certificates.
Platts' Nordic Hydro assessments remain unchanged.
The assessments affected are:
| Previous Assessment Name | Updated name as of Jan. 2, 2026 | Assessment Symbol | Mirrored Symbol | Monthly Average Symbol | MAvg Mirrored Symbol |
| EU Wind GO, Current year | AIB Wind GO, Current year | EWGY004 | MWGY004 | EWGY003 | MWGY003 |
| EU Wind GO, Year 01 | AIB Wind GO, Year 01 | EWGY104 | MWGY104 | EWGY103 | MWGY103 |
| EU Wind GO, Year 02 | AIB Wind GO, Year 02 | EWGY200 | MWGY200 | EWGY203 | MWGY203 |
| EU Wind GO, Year 03 | AIB Wind GO, Year 03 | EWGY300 | MWGY300 | EWGY303 | MWGY303 |
| EU Wind GO, Year 04 | AIB Wind GO, Year 04 | EWGY400 | MWGY400 | EWGY403 | MWGY403 |
| EU Solar GO, Current year | AIB Solar GO, Current year | ESGY200 | MSGY200 | ESGY203 | MSGY203 |
| EU Solar GO, Year 01 | AIB Solar GO, Year 01 | ESGY300 | MSGY300 | ESGY303 | MSGY303 |
| EU Solar GO, Year 02 | AIB Solar GO, Year 02 | ESGY400 | MSGY400 | ESGY403 | MSGY403 |
| EU Biomass GO, Current year | AIB Biomass GO, Current year | EBGY200 | MBGY200 | EBGY203 | MBGY203 |
| EU Biomass GO, Year 01 | AIB Biomass GO, Year 01 | EBGY300 | MBGY300 | EBGY303 | MBGY303 |
| EU Biomass GO, Year 02 | AIB Biomass GO, Year 02 | EBGY400 | MBGY400 | EBGY403 | MBGY403 |
Platts symbols for these assessments remain unchanged.
Each GO represents the environmental attributes of renewable electricity and represents 1 megawatt hour of electricity generated from renewable sources.
Details about the methodology for Platts GO assessments can be found here.
Please send all feedback and comments to pricegroup@spglobal.com and global_renewables@spglobal.com.
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.