National Grid ESO’s board of directors have a crucial role in overseeing the ESO’s ambition of being able to operate a zero carbon electricity system by 2025, along with the delivery of its business strategy, objectives and plan.

Fintan Slye

Fintan Slye - Chair of the NGESO Board

Fintan Slye is Director of the ESO and Chair of the Board.  He joined the ESO in 2018. Prior to this he was CEO of the EirGrid Group, the electricity system and market operator in Ireland and Northern Ireland. He has previously worked for McKinsey & Company and ESB Group. 

Fintan is both a Fellow of the Institute of Engineers Ireland and the Energy Institute. He holds a Masters in Engineering Science and an MBA from University College Dublin.

National Grid ESO - board members - Hannah Nixon

Hannah Nixon - Independent Non Executive Director

Hannah has extensive experience in economic regulation, most recently as Chief Executive Officer of the Payment Systems Regulator (PSR).

She has been a member of several advisory boards, including the Government Economics Service, the ORR advisory panel and water regulator Ofwat’s Future Regulation advisory panel.

Hannah currently sits on the board of the Channel Islands Competition and Regulatory Authority (CICRA).

Baroness Gillian Merron

Baroness Gillian Merron - Independent Non Executive Director

Baroness Merron of Lincoln is a Life Peer and Shadow Minister for Health and Social Care, and the Department of Digital, Culture, Media and Sport (DCMS), as well as a Whip. 

She is also a Visiting Professor at the University of Lincoln, a Vice President of Liberal Judaism and Ambassador for Smart Works. 

Formerly Chief Executive of the Board of Deputies of British Jews, Baroness Merron was the MP for Lincoln between 1997 and 2010. During this time, she served in government as a Senior Whip, and as a Minister in the Health, International Development, and Transport Departments as well as in the Cabinet Office and Foreign and Commonwealth Office.

National Grid ESO - Borad members - Paul Plummer

Paul Plummer - Independent Non Executive Director

Paul is an experienced business leader and strategic thinker now working as Professor of rail strategy at the University of Birmingham and a Non-Executive Director in the housing and energy sectors. Until recently he was CEO of the Rail Delivery Group (RDG) and Association of Train Operating Companies. Prior to that he was on the Board of Network Rail where responsibilities included the system operator activities. His earlier career spanned the regulated utilities as an economist and adviser working for governments, companies and regulators. 

Kayte oNeill

Kayte O’Neill - Chief Operating Officer

Having been appointed as COO in January 2024, Kayte oversees ESO’s delivery across energy networks and markets and the real time operation of the electricity transmission system. As the ESO transitions to become ‘Future System Operator’ (FSO) in Summer 2024, Kayte’s focus is on building and embedding a ‘whole system’ approach to the strategic planning and delivery of GB’s energy transition. 

With more than 20 years of experience in the energy sector, Kayte was most recently accountable, on behalf of ESO, for the design and delivery of the FSO. She has previously led the Strategy and Markets teams and spent 3 years in Boston with National Grid’s US electricity distribution businesses.

Kayte is a Non-Executive Director on the Board of Jersey Electricity.

Janice Crawford

Janice Crawford - Independent Non-Executive Director

Janice Crawford is a Chartered Engineer and has had a career stretching from an apprentice in a Glasgow shipyard (where she was the first female apprentice in a British shipyard) to executive and board posts for international engineering and project delivery companies. She is a Fellow of the Institution of Mechanical Engineers and became a Fellow of the Royal Academy of Engineering in 2013.

Janice has worked in diverse international companies in the petrochemical, oil and gas, LNG, mining and pharmaceutical related industries, and up until April 2022, Janice was the Director Global Capital Projects for Johnson Matthey, the FTSE 100 global science and chemical company. Janice also served as a Non-Executive Director of the Health and Safety Executive Board for five years. 

National Grid ESO - John Linwood

John Linwood - Independent Non-Executive Director

John has held senior technology roles in Microsoft and Yahoo and was formerly Chief Technology Officer at several companies including BBC and Wood Mackenzie. 

He has been a NED of both FTSE and AIM listed companies since 2012 and is currently on the Board of Brooks Macdonald, an AIM listed Wealth Management company where he is also chair of the Remuneration Committee. He is also Strategic Technology Advisor to the UK Ministry of Defence. 

Zoe Morrisey

Zoe Morrissey - Legal Counsel

Zoe is an experienced energy and regulatory lawyer having spent 10 years advising a number of the UK National Grid business units. Prior to that she worked at Ofwat as a legal advisor and in 2008 qualified as a solicitor in private practice specialising in competition and procurement law.

Claire Favier-Tilston ESO Company Secretary

Claire Favier-Tilston - Non-Board Company Secretary

Claire, is a Chartered Secretary, with over fifteen years’ experience as a governance and compliance professional. Providing corporate governance advice and support to a range of PLC and Private Boards and Committees within a wide variety of commercial and charitable organisations.