SEMO - Single Electricity Market OperatorSEMO Logo
  • Markets
      • Markets

        An overview of how the SEMOpx electricity markets operate and the timelines they work on.

      • Day-Ahead Market
      • Intraday Auctions Market
      • Intraday Continuous Market
      • Clearing and Settlement
  • Market Data
      • Market Data

        View the full range of static and dynamic reports available to download.

      • Market Results

        See dynamic report tables and graphs for latest auctions, which can be viewed online or downloaded.

      • Reports
        • Read More
        • Static Reports
        • Remit Reports
      • Document Library

        Market related documentation and Trading & Technical documentation.

        • Read More
  • Rules & Monitoring
      • Rules & Monitoring

        SEMOpx is governed by a set of rules and operating procedures that set out the obligations on Exchange Members and process for trading on the exchange.

      • Market Rules

        Latest approved SEMOpx Rules, Procedures and any approved Modifications.

      • Modifications

        Modifications to the SEMOpx Rules.

        • Read More
        • Exchange Committee
        • Submit a Modification Proposal
        • Modifications Under Consideration
        • Committee Meetings
      • Market Monitoring
        • Read More
        • Market Surveillance
        • REMIT Reporting
  • Join the Market
      • Join the Market

        Find registration information for a company to participate in the Day-Ahead and Intraday Market.

      • How to Join

        To trade on SEMOpx Day-Ahead and Intraday Markets you need to complete the application process

      • SEMOpx Fees

        Competitive, simple fee structure to participate and trade on the exchange.

      • Training

        Information on all aspects of Single Electricity Market.

  • SEMO
  • Contact
  1. Home
  2. Rules & Monitoring
  3. Market Monitoring

Market Monitoring

SEMOpx monitors the Day-Ahead and Intraday Markets, cooperating with the National Regulatory Authorities. We are responsible for checking that Members are compliant with the SEMOpx Rules, Code of Conduct and REMIT reporting obligations.

Market Surveillance

SEMOpx is responsible for monitoring Day Ahead and Intraday trading activity. We also conduct investigations and report any suspicious activity to the relevant National Regulatory Authority.

Find out more

REMIT Reporting

SEMOpx offers a REMIT Reporting Service as an Organised Market Place and a Registered Reporting Mechanism.

Find out more
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SEMOpx Power Exchange 2023

Republic of Ireland

The Oval, 160 Shelbourne Road, Ballsbridge, Dublin 4, D04 FW28.

Northern Ireland

Castlereagh House, 12 Manse Road, Belfast, BT6 9RT.
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Republic of Ireland

The Oval, 160 Shelbourne Road, Ballsbridge, Dublin 4, D04 FW28.

Northern Ireland

Castlereagh House, 12 Manse Road, Belfast, BT6 9RT.
  • Subscribe
  • Market Messages
  • Events
  • News
  • Glossary
  • About SEMOpx
  • Privacy Statement
  • Cookies
  • Disclaimer
  • Web Accessibility
  • Site Map