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 Balancing Market Registration 



The Balancing Market (BM) allows the settlement of actions taken by the TSOs to keep the electricity system balanced and secure.

The Balancing Market also provides for the settlement of imbalances as a result of differences between Participants contracted positions from the Day Ahead and Intraday Markets and the actual generation or consumption.


Participation in the BM is mandatory for all generators with a maximum export capacity above the de minimus threshold, and voluntary for generators below that threshold (>10MW). Generators that wish to participate in the Capacity Market must be registered in the BM.

Registration Forms

Existing SEM Participants, and new SEM Participants that have been provided with Balancing Registration Data by SEMO, will need to complete the Transitional Registration Forms.  For new participants, please complete the New Party and Unit Registration Forms.

SEMO is a joint venture between EirGrid PLC and SONI Limited