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The Single Electricity Market Overview 29th May 2017

Chart of Ex Ante Prices (EUR) 30th May

Last updated:09:52 29th May 2017

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What does SEMO do?

About the Single Electricity Market

The Single Electricity Market (SEM) is the wholesale electricity market operating in the Republic of Ireland and Northern Ireland. The SEM provides for a competitive, sustainable and reliable wholesale market in electricity, a joint venture between Eirgrid plc and SONI Limited. For more information about SEMO please see About SEMO.

Latest Initiatives


SEMO is a joint venture between EirGrid PLC and SONI Limited