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

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

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

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        Market related documentation and Trading & Technical documentation.

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      • 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.

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        Latest approved SEMOpx Rules, Procedures and any approved Modifications.

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        Modifications to the SEMOpx Rules.

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      • Join the Market

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

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

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  1. SEMOpx EPEX Auction Training

    25/01/2023

    Portable Document Format (PDF) pdf 2.5 MB

     Download
  2. Auctions Clearing SEMOpx IDM Continuous

    25/01/2023

    Portable Document Format (PDF) pdf 1.8 MB

     Download
  3. SEMOpx Data Publication Guide Issue 7.3

    25/01/2023

    Portable Document Format (PDF) pdf 1.3 MB

     Download
  4. M7 Release Go Live Information

    23/01/2023

    Portable Document Format (PDF) pdf 352.1 kB

     Download
  5. SEMOpx Auction Timings and Market Messages v5.0

    16/01/2023

    Portable Document Format (PDF) pdf 532.8 kB

     Download
  6. SEMOpx information ETS 3.6.5

    10/01/2023

    Portable Document Format (PDF) pdf 531.3 kB

     Download
  7. December 2022 Market Report

    03/01/2023

    Portable Document Format (PDF) pdf 192.0 kB

     Download
  8. SEMOpx ETS 3.6.5 API Package

    03/01/2023

    XML Document zip 3.9 MB

     Download
  9. SEM-GB Decoupling training session with Market Participant 16th January 2023 Information package V0.1

    21/12/2022

    Portable Document Format (PDF) pdf 697.6 kB

     Download
  10. SEM-GB procedural changes

    20/12/2022

    Portable Document Format (PDF) pdf 243.9 kB

     Download
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Semo Logo

SEMOpx Power Exchange 2020

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