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ESB Networks DAC board

ESB Networks DAC was incorporated on 8th December 2008 as a wholly owned subsidiary company of ESB. ESB Networks DAC was vested as Distribution System Operator on 1st  January 2009 in accordance with the European Communities Regulations 2008 (S.I. 280 of 2008). It is responsible for the operation, maintenance, and development of the electricity distribution system in the State.

ESB Networks DAC has its own board which currently consists of 5 members. The Articles of Association of ESB Networks DAC specify that at least two of the directors shall not be employees, contractors or consultants of ESB or its subsidiary companies and shall be independent of the interests of ESB. Ms Caroline Spillane, Mr Ian Talbot and Mr Michael Nolan were appointed as independent directors pursuant to this requirement

Headshot of Marie Sinnott Marie Sinnot Company Secretary

Marie Sinnott is company secretary of ESB Networks DAC, and group company secretary of ESB.


Prior to her appointment in 2019, Marie was ESB’s Group Head of Compliance and Enterprise Risk Management and previously held a number of senior management roles across the organisation.


A UCD commerce graduate, she holds an MSc in Economic Policy Studies from TCD and a Postgraduate Diploma in Corporate Governance from UCD Michael Smurfit Graduate Business School. Marie is a member of the DCU Governing Authority, and a director and company secretary of the Board of the Institute of International and European Affairs.