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Back to Press Releases 18 November 2022



18th November 2022

ESB has announced three Executive Director changes.

Marguerite Sayers has been appointed Deputy Chief Executive of the Group succeeding Jerry O’Sullivan who is retiring following 41 years with the organisation. Pat Fenlon took up his new role as Executive Director, Customer Solutions in September and Paul Stapleton was appointed Executive Director, Group Finance and Commercial from early October. 

Commenting on these new appointments, ESB Chief Executive Paddy Hayes said, “Marguerite, Pat and Paul all bring considerable experience and capability as well as a record of delivery. They assume their new roles at a time of great change, as the energy sector confronts the challenges of decarbonisation, security and affordability. I look forward to working with Marguerite, Pat and Paul to ensure that ESB continues to make a difference, driving to Net Zero, and bringing sustainable and competitive energy solutions to our customers.

Marguerite Sayers is a very experienced and valued member of ESB’s leadership team who previously headed up ESB Networks and in recent years led the growth of ESB’s Customer Solutions portfolio, including Electric Ireland. As Executive Director, Group Finance and Commercial, Pat Fenlon steered ESB’s financial performance to enable increasing investment in critical electricity infrastructure. Paul Stapleton’s most recent role was as Managing Director of NIE Networks, with responsibility for the distribution of safe, secure and increasingly sustainable electricity to over 900,000 homes, farms and businesses in Northern Ireland.”


Notes to Editors’:

Marguerite Sayers joined ESB in 1991, working in various technical and managerial positions across the ESB including Generation Manager and Head of Asset Management for ESB Networks. In recent years, she has held the position of Executive Director, Customer Solutions and Managing Director of ESB Networks Ltd. From Co Kerry, Marguerite is a Chartered Engineer and a Fellow and Past President of Engineers Ireland.

Pat Fenlon replaces Marguerite as Executive Director of ESB’s Customer Solutions business, which includes Electric Ireland, So Energy, ESB ecars and ESB Smart Energy Services. A native of County Wexford, Pat previously held senior financial and general management positions across ESB including Executive Director, Group Finance and Commercial and General Manager of Electric Ireland. He is a fellow of Chartered Accountants Ireland and worked with PwC in Dublin before joining ESB in 1993.

Paul Stapleton replaces Pat as Executive Director, Group Finance and Commercial. He is a former Managing Director of Northern Ireland Electricity Networks, an independent subsidiary of ESB. Originally from Limerick, Paul joined ESB in 1991 and has worked in various senior roles in finance and managerial positions across the Group including General Manager of Electric Ireland, ESB Group Treasurer and Financial Controller of ESB Networks.  He is a member of the Chartered Institute of Management Accountants and an IOD Chartered Director.