Dear Market Participants,
Hereby, the Single Day Ahead Coupling (SDAC) parties would like to invite you to an SDAC decoupling training session, which will be held on 19/11/2025.
For training purposes, we will simulate a full SDAC decoupling scenario. Because of the mitigating measures safeguarding daily operations of SDAC, a partial decoupling is more likely to occur than a full decoupling, however a full decoupling scenario has been chosen to ensure the session is relevant for all participants, not only those in decoupled areas.
Fallback mechanisms such as shadow or explicit auctions, local auctions or regional coupled auctions run by NEMOs will be activated as needed.
SCENARIO
The training session will simulate technical issues with the central calculation process, meaning that no market coupling results will be available at SDAC level. Requiring TSOs, NEMOs and JAO to follow established procedures. Market participants should respond/act on the operational messages from their respective NEMOs, JAO and TSOs, exactly as they would in real operations. All process steps, including nomination and matching, will be covered, except for Nordic participants which are not required to nominate towards eSett for the Nordic-Baltic regional coupling.
PLEASE NOTE
The entire training session will take place in a simulation test environment. All operational messages from involved parties will be explicitly marked as "SIMULATION/TEST" messages. Please make sure that your operational staff present on 19/11/2025, whether you are participating or not, is aware that this training is scheduled and that messages related to it are sent out. This is important to prevent any type of misunderstanding that could impact the processes in production.
All members wishing to participate should check their preparedness as follows:
• Please ensure you have an active test user in the Member Test (MT) environment for the Product ID(s) listed below:
o NOR_QH_DA_1
o CWE_QH_DA_1
o PL_QH_DA_1
o CROPEX_QH_DA_1
o IBEX_QH_DA_1
o BRM_QH_DA_1
If you are unsure, please contact us at [email protected].
• For members intending to participate in the shadow auction allocation, registration with JAO is mandatory by 7 November 2025. More information can be found here:
https://www.jao.eu/news/sdac-market-coupling-members-testing-19-november
• Members are advised and encouraged to use the materials below for better understanding and preparedness:
o SDAC Information Package provides an overview of the test specific timings and messages our members can expect during the Full Decoupling Training Session with Market Participants on 19/11/2025:
https://www.nemo-committee.eu/assets/files/decoupling-training-session-with-market-participants.pdf
o SDAC production operational timings, an overview of all messages, rules, partial decoupling, and fallback solutions for each region are described in the Fallback Manual*:
https://www.nemo-committee.eu/assets/files/sdac-fallback-manual.pdf
Looking forward to a productive and constructive session together.
*(Please note that regional fallback manuals for any missing regions will be published prior to the test session and announced in a separate operational message)
Hereby, the Single Day Ahead Coupling (SDAC) parties would like to invite you to an SDAC decoupling training session, which will be held on 19/11/2025.
For training purposes, we will simulate a full SDAC decoupling scenario. Because of the mitigating measures safeguarding daily operations of SDAC, a partial decoupling is more likely to occur than a full decoupling, however a full decoupling scenario has been chosen to ensure the session is relevant for all participants, not only those in decoupled areas.
Fallback mechanisms such as shadow or explicit auctions, local auctions or regional coupled auctions run by NEMOs will be activated as needed.
SCENARIO
The training session will simulate technical issues with the central calculation process, meaning that no market coupling results will be available at SDAC level. Requiring TSOs, NEMOs and JAO to follow established procedures. Market participants should respond/act on the operational messages from their respective NEMOs, JAO and TSOs, exactly as they would in real operations. All process steps, including nomination and matching, will be covered, except for Nordic participants which are not required to nominate towards eSett for the Nordic-Baltic regional coupling.
PLEASE NOTE
The entire training session will take place in a simulation test environment. All operational messages from involved parties will be explicitly marked as "SIMULATION/TEST" messages. Please make sure that your operational staff present on 19/11/2025, whether you are participating or not, is aware that this training is scheduled and that messages related to it are sent out. This is important to prevent any type of misunderstanding that could impact the processes in production.
All members wishing to participate should check their preparedness as follows:
• Please ensure you have an active test user in the Member Test (MT) environment for the Product ID(s) listed below:
o NOR_QH_DA_1
o CWE_QH_DA_1
o PL_QH_DA_1
o CROPEX_QH_DA_1
o IBEX_QH_DA_1
o BRM_QH_DA_1
If you are unsure, please contact us at [email protected].
• For members intending to participate in the shadow auction allocation, registration with JAO is mandatory by 7 November 2025. More information can be found here:
https://www.jao.eu/news/sdac-market-coupling-members-testing-19-november
• Members are advised and encouraged to use the materials below for better understanding and preparedness:
o SDAC Information Package provides an overview of the test specific timings and messages our members can expect during the Full Decoupling Training Session with Market Participants on 19/11/2025:
https://www.nemo-committee.eu/assets/files/decoupling-training-session-with-market-participants.pdf
o SDAC production operational timings, an overview of all messages, rules, partial decoupling, and fallback solutions for each region are described in the Fallback Manual*:
https://www.nemo-committee.eu/assets/files/sdac-fallback-manual.pdf
Looking forward to a productive and constructive session together.
*(Please note that regional fallback manuals for any missing regions will be published prior to the test session and announced in a separate operational message)
Nord Pool desk
| T: +47 6710 9110 (Day-ahead desk) | E: [email protected] |
| T: +47 6710 9115 (Intraday desk) | E: [email protected] |