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Legacy SEM CMS Outage - Wednesday 1st May 2019  

  • Incident Type: IT
  • Run Type: NA
  • Message Detail:

    The Legacy Central Market Systems will be unavailable on Wednesday 01/05/2019 between 14:30 and 20:00.

    This outage is to facilitate essential maintenance on the Legacy Central Market Systems. 

    This will have no impact on the ISEM Balancing Market.

    If you have any questions on this outage then please contact


  • Affected Day/Period:  01/05/2019 
  • Message Status:Closed 
  • Created Date: 30/04/2019 11:52
  • Modified Date: 30/04/2019 11:55

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SEMO is a joint venture between EirGrid PLC and SONI Limited