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 SEMO Team 

Robin McCormick

Robin McCormick is an Executive Director of EirGrid plc and is the General Manager of SEMO.  Robin is also the General Manager of SONI Ltd, the System Operator in Northern Ireland.

A Graduate of Queen’s University Belfast (BSc Hons CEng FIET MSc MBA), Robin previously held a number of management positions within NIE including Business Strategy, Transmission Planning & Projects and Customer Service and played a key role in the design and implementation of the all-island wholesale market as a member of the SEM Executive Board. A member of the Institute of Directors, he serves on IET's NI Energy Policy Group.

Derek Lawler

Derek Lawler is the Market Operations Manager of the Single Electricity Market Operator (SEMO).


A Business Studies graduate of DCU, Derek previously worked in Irish Life Investment Managers and Eircom, before joining EirGrid in 2004. Since 2004, Derek has worked on a number of roles including Key Account Manager - Customer Relations and Stakeholder Management - All Island Project for the Single Electricity Market. 

In 2008, Derek was appointed Manager - Commercial & Pricing with responsibility for connection offers, post offer contract management and pricing & tariffs.

Derek takes up his current role as Market Operations Manager in SEMO from 1st October 2012. 

David Stevens

David Stevens is the Market Development Manager of the Single Electricity Market Operator.


David Stevens has over 30 years experience in the Electricity Industry. David has held a number of posts in NIE covering Planning, Construction, Testing, Commissioning with Field and Control Room Operations. In addition he was the Group Safety manager for Viridian and Regulation Manager within NIE.


His role in the All Island Project for the Single Electricity Market lead him into becoming the Market Development Manager for SEMO from which he is responsible for the Trading and Settlement Code (TSC) secretariat, TSC modifications and analysis, Market Modelling and Regulation dealing with both Regulators NIAUR & CER.

David has now been appointed into EirGrids European Market Integration Project (EMIP) in order to deliver aspects of the Integrated Single Electricity Market (I-SEM)   He will be responsible for Participant Engagement and Market Readiness (PEMR) work stream of the project.  


Morris Lyness

Morris Lyness is the Market Systems Manager of the Single Electricity Market Operator.

Morris Lyness has over 25 years experience in the IT sector. With previous experience in IT Management within the food processing and textiles sectors, Morris has worked as SONI IT Manager for 12 years and  took up a new role in SEMO as Market Systems Manager in June 2013. A member of the Chartered Institute of IT (BCS) Morris was educated in the University of Ulster Morris has an BSc (Hons) and pg Dip in Information Technology.

As Market Systems Manager Morris has overall responsibility for IT systems and infrastructure within SEMO.

SEMO is a joint venture between EirGrid PLC and SONI Limited