Non-Executive Director, appointed 26 September 2026.
BEc, MTaxLaw, MAcc
Sussan has extensive experience in government, environmental regulation, regional Australia and major infrastructure.
Sussan most recently served as Leader of the Liberal Party and Leader of the Opposition from May 2025 to February 2026. She represented the regional NSW electorate of Farrer in the Australian Parliament for more than 24 years and served as Minister for the Environment, Minister for Health, Sport and Aged Care and in a range of other senior government portfolios. Before entering Parliament, Sussan worked as an air traffic controller, commercial pilot and partner in a regional farming enterprise, and also served in a senior, tax‑qualified role with the Australian Taxation Office. Reflecting her longstanding commitment to agricultural science and sector capability, Sussan is a non‑executive director of the Crawford Fund for Food Security.
Non-Executive Director, appointed 26 September 2026.
BE (Electrical), MEngSc, Hon FIE Aust, FTSC, GAICD
Merryn has more than 30 years’ executive experience across Australia’s energy industry covering transmission planning, major infrastructure investment, market regulation and the integration of renewable energy into the electricity system.
Merryn was most recently Executive General Manager, System Design at the Australian Energy Market Operator, where she led system planning to support Australia’s transition to net zero. Previously, Merryn was a Commissioner at the Australian Energy Market Commission and Chief Executive of Powerlink Queensland.
Merryn has been a Non-Executive Director at Transpower New Zealand since 2025. She has previously held Director roles on the Boards of Transmission Company Victoria, Energy Networks Australia and ElectraNet SA.
Non-Executive Director, appointed 11 November 2025.
Daniel Walton is an experienced Executive and Company Director with a proven record in strategic leadership, governance, and public policy. He brings deep expertise across the energy, resources, manufacturing, and workplace relations sectors.
He currently serves as Group Executive – Strategy and Growth at the EML Group and was formerly the National Secretary of the Australian Workers’ Union.
Daniel is Chair of The McKell Institute and a Director of the National Reconstruction Fund Corporation. He has previously held board positions with AustralianSuper and Chifley Financial Services, and served on a range of government bodies, including as Chair of the NSW Renewable Energy Sector Board. He has also advised federal and state governments on trade, resources, climate, energy, and industry policy.
Non-Executive Director, appointed 11 November 2025.
BEc, LLB (Hons), GradDipLegPrac
David has been the Secretary of three Commonwealth Government departments with responsibility for energy policy, the most recent being the Department of Climate Change, Energy, the Environment and Water. David has extensive knowledge and experience of energy markets in Australia, and of the range of participants, including energy providers. David is a Non-Executive Director and Deputy Chair of Airservices Australia.
Previously, David was the Deputy Secretary in the Department of Finance responsible for Federal budget matters, and he has been the Chief Operating Officer of two Commonwealth departments. David has been as adviser to Commonwealth and State Ministers, including in the Prime Minister’s Office. He also practised as a Barrister in Sydney for five years.
Chair and Non-Executive Director, appointed 1 March 2025
BDP, B.Bldg, MBA (Exec)
James has a 30-year background in property, infrastructure, business and major capital works in the public and private sectors, including extensive executive, non-executive director and consultancy experience.
James brings a focus on infrastructure and major project delivery, engineering, strategy and governance to Snowy Hydro’s Board. His executive experience includes 12 years with property and construction company Lendlease in various roles including General Manager for Victoria, Tasmania and South Australia, five years as Executive Director of Major Projects Victoria, the Victorian Government’s primary capital works agency, and 19 years at M21 Advisory, a commercial advisory consultancy he established in 2006.
James’ non-executive director experience includes his current terms as a Director of Inland Rail and Director of Mirvac. James also serves as a member of the Committee of the Melbourne Cricket Club.
Previously, James has been Chair of property development company ISPT, Chair of the Victorian Port Corporation and Deputy Chair of the Port of Melbourne Corporation.
Non‑Executive Director, appointed effective 1 July 2024.
Louise is an accomplished executive and business leader, with 25 years’ experience in complex, fast-growing global companies in the banking, finance, and infrastructure sectors; as well as extensive experience in risk management.
Louise is currently a Deputy Chair Inland Rail, Non-Executive Director of Silk Logistics Holdings and CompanyB Limited (Belvoir) and founder and Director of Orion Mechanical Services along with being and a member of the National Standing Committee on Energy and the Environment for Global Access Partners (NSCEE).
Previously, Louise was a member of the Heritage Council of New South Wales. Past Non-Executive Director roles have included Sydney Metro, Moorebank Intermodal Company.
Managing Director and CEO, appointed 1 February 2023.
BSc (Hons), MBA, DipM
Dennis was appointed Snowy Hydro Chief Executive Officer and Managing Director of the Company in February 2023. Dennis has over three decades’ experience in the energy sector, with a focus on renewables and retail, and brings a wealth of strategic knowledge and proven capability in delivering strong performance across large energy businesses.
Non-Executive Director, appointed 21 March 2022.
OAM, B.Bus(Acc), MBA, FCPA, GAICD
Leanne is a Non-Executive Director and Audit and Risk Committee Chair for ASX listed companies Deterra Royalties Ltd, FireFly Metals Ltd, Lotus Resources Ltd and Advanced Engineered Materials Ltd.
Leanne has over 25 years’ experience in the mining sector, most recently in a senior international marketing role with Rio Tinto. She has strong skills in Accounting (FCPA), and extensive international and domestic marketing experience. An experienced leader of transformational change, Leanne has led organisational restructuring, disposals and acquisitions, and major greenfield and brownfield projects, at both executive and Board level.
Non-Executive Director, appointed 1 July 2019.
BEcon, Dip Ed, FAICD.
Karen is a Non-Executive Director Orica Ltd and Charter Hall Ltd. She is a fellow of the Senate for the University of Sydney where she chairs the Finance and Audit Committee and Director of the Board of Music in Regions Ltd (not-for-profit).
Karen previously spent over 30 years in the energy industry covering upstream production, generation, supply and retail with Origin Energy, Exxon and BP. She has held senior executive positions including as the Finance & Strategy Director and Chief Operating Officer for Origin Energy. In 2017, Karen was a member of the Future Security of the National Energy Market Finkel Review Panel and an Non-Executive Director of Boral Ltd.
