Marie spent thirty years with the European Commission, ultimately as Director for Renewables, Energy Efficiency and Innovation, and was a leading advocate of future oriented policies and strategies: providing a fair deal for consumers; putting energy efficiency first; and achieving global leadership in renewable energies. Marie is a member of the Governance Committee of MaREI, and an Advisory board member of UCD Energy Institute. Marie was the first Chairperson of Renewable Energy Ireland – an open partnership of sustainable energy associations working collectively to support the energy transition in Ireland. She was also a non-executive director of Tipperary Energy Agency – a social enterprise for energy efficiency; and E3G, a European climate change think tank operating to accelerate the global transition to a low carbon economy. Marie is a Senior Advisor in Brussels to Hume Brophy, a global Communications Agency. Before joining the Commission, Marie was a Director of the Federation of Irish Chemical Industries, prior to which she was an executive with the Kerry Group.