Decarbonising Ireland’s Energy and Transport Sectors is a once in a lifetime opportunity. My focus is to help our clients achieve that goal.

Sean Casey

EY UK&I Industrials & Energy Industry Leader

Over 25 years of experience in gas, water, electricity and renewables. Former COO and CEO of one of Ireland's largest utility and infrastructure firms. Father of three. Golf and rugby enthusiast.

Sean leads the Energy & Infrastructure practice of EY UK&I in Ireland, facilitating transformational projects and programs across the sector in support of our Energy Transition goals and Objectives.

With over 25 years of experience in energy and utilities, Sean advises clients on the key trends shaping the future of sector and how clients within it can align their purpose and strategy and transform with confidence to deliver long-term value.

Sean holds a Bachelors Degree in Electrical Engineering and a Masters in Business Administration, both from University College Cork and is a Fellow of the Institute of Engineers, Ireland.

How Sean is building a better working world

Working to address the challenges associated with the Energy Transition - Regulatory, Organisational Development Investment Prioritisation, Operational readiness, Customer Alignment is key to driving sustainable business outcomes.

Sean's latest thinking

How Energy & Utilities are strengthening their sustainability efforts

There's growing commitment to addressing environmental challenges yet identifying barriers to bolder sustainability practices remains crucial. Find out how.

27 Mar 2025 Derarca Dennis +1

How enhanced state support can recharge electric vehicle adoption in Ireland

With EV sales declining, this article looks at how state-backed measures can boost adoption, helping Ireland meet its climate targets.

13 Feb 2025 Sean Casey +1

Why AI and Energy are the New Power Couple for Green Transition and Transformation

AI and energy, the "new power couple," are transforming the industry with innovative solutions and policies driving sustainable growth.

13 Dec 2024 Sean Casey +1

Can Ireland unlock network challenges towards a lower-carbon future?

According to the latest EY Renewable Energy Attractiveness Index, Ireland ranks highly for renewable energy but network gridlock and high capital costs pose consistent challenges to be overcome.

15 Jul 2024 Sean Casey

How will the green hydrogen industry evolve in Ireland

Hydrogen has the potential to achieve sustainability and climate neutrality and will soon be a vital part of Ireland's energy strategy. There are five strategic steps, aimed at mobilising and aligning stakeholders, designing action roadmaps, and effective communication.

06 Dec 2023 Sean Casey
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