For general queries related to SEMO please contact markethelpdesk@sem-o.com
For queries related to Market Registration please contact registration@sem-o.com
Market Participants should submit data and settlement queries to datasettlementquery@sem-o.com.
ROI: 1 800 778 111
NI: 0 8000 778 111
International: +353 1 669 2467
SEMO Customer Service SEMO Customer Service
160 Shelbourne Road Castlereagh House
Ballsbridge 12 Manse Road
Dublin 4 Belfast BT6 9RT
Republic of Ireland Northern Ireland
If you have any queries relating to SEMO, please use the contact form below. Please note that fields marked * are required.
SEMO is a joint venture between EirGrid plc and SONI Limited
