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Our Board

The Board of Directors is the governing body of Horizon Power as prescribed in the Electricity Corporations Act 2005 (WA).

The primary role of the board is to set the strategic direction of the organisation, approve major expenditure and provide advice to the Minister for Energy on regional power issues.

Stephen Edwell (Chairman)

Appointed in 30 April 2018.

Stephen is an economist specialising in energy market regulation, design and utility reform.

His experience in the Australian energy sector is wide-ranging. Steve led the team that project managed Queensland’s entry to the National Electricity Market. He also project managed the design and implementation of the Wholesale Electricity Market in Western Australia.

Steve has been a senior member of energy regulatory boards since 2005. He was appointed by the Commonwealth Government as inaugural full-time Chair of the Australian Energy Regulator and Associate Commissioner of the Australian Competition and Consumer Commission (2005-2010). Most recently, Steve completed an 11 year term as a part-time Governing Body Member of the Western Australian Economic Regulation Authority.

He has undertaken various energy-related projects for the (former) WA Department of State Development, Public Utilities Office, Department of Finance and WA Treasury.

Steve holds a Bachelor of Commerce (Economics) and a Masters of Business Administration.

Peter Oates (Deputy Chair)

Appointed in November 2014.

Peter has more than 38 years’ of experience in the Western Australian electricity industry. Most of this experience was in the financial area, including periods where he was the General Manager Finance and Administration followed by a period where he was the General Manager Emerging Business which included the development of renewable projects for Western Power prior to its disaggregation in 2006.

He was a Director of Eneabba Gas Ltd from 2006 to 2010. Peter has been involved in a number of reviews into the structure of the electricity industry in Western Australia, commencing with his appointment as Executive Officer to the Energy Board of Review in 1992 which resulted in the disaggregation of SECWA. Peter was Chairman of the Merger Implementation Group which provided the oversight into the merger of Verve and Synergy.

Peter holds a Bachelor of Economics, Master of Business Administration from the University of Western Australia and is a Fellow of the Certified Practicing Accountants Peter was appointed Chair of the Audit and Risk Management Committee upon his appointment to the Horizon Power Board in November 2014.

Professor Ray Wills (Director)

Appointed in November 2014.

Professor Wills is a respected commentator and adviser on sustainability and technology across the built environment, clean tech, energy infrastructure, industrials, manufacturing, resources, transport, and water sectors. His research includes adoption rates of and disruption in technology, including automation, robotics and additive manufacturing, and the impact of social media on markets.

Professor Wills is owner and managing director of advisory firm Future Smart Strategies and of sustainable design group Blue by Design (Singapore) and its Australian subsidiary, partner and Chair of Sun Brilliance Power, non-executive director of PowerMinder, and non-executive director of BioTek Fuels.

He is also Adjunct Professor at the University of Western Australia, where he contributes to the academic program and supervises postgraduate students, is an active peer reviewer for science publications, and is a spokesperson on climate change, sustainability and new technology.

He was recognised by Singapore-based ABC Carbon as one of the Top 100 Global Leaders in Sustainability in 2011, an honour renewed each year since, and from 2014 he has been listed by UK-based SustMeme Magazine as one of the top 100 Global Influencers in Social Media on Climate Change and Energy. In 2016, analytics firm Onalytica listed him in its Top 100 Influencers and Brands for Renewable Energy in the world, and in 2017 he was similarly recognised for Climate Action.

Professor Wills holds a Bachelor of Science (Honours) (Mycology) and a Doctorate of Philosophy (Ecology).

He is a member of the Australian Institute of Company Directors and the Ecological Society of Australia, and is a Fellow of the Australian Institute of Energy.

Kylie Chamberlian (Director)


Appointed 30 April 2018.

Kylie is an accomplished and experienced banking and finance executive with over 20 years' experience within the industry. Across various senior roles with prominent Australian banking and financial institutions, she has garnered broad market exposure to a variety of industry and brings acumen in the key areas of finance, strategy, culture, governance and risk.

Kylie holds a Bachelor of Commerce from the University of Western Australia and post graduate qualifications from both the Securities Institute of Australia and the Governance Institute of Australia.

Kylie is currently a Non-executive Director of West Coast Fever Netball Club Limited and holds a Senior Relationship role at Bankwest.

Gail Reynolds-Adamson (Director)

Appointed in November 2018.

Gail has held various roles in Aboriginal relations and is experienced in advocating for regional and Aboriginal communities. She has served on several boards and is currently Chairperson of the Esperance Tjaltjaraak Native Title Aboriginal Corporation, the South East Aboriginal Health Service, the Goldfields Esperance Development Commission and a board member of the Australian Golden Outback.

Sandra Di Bartolomeo (Director)

Appointed in November 2018.

Sandra has over 23 years’ experience as a banking and finance lawyer, specializing in corporate, construction, resources, energy and property financing. She was formerly a partner of a top tier national law firm, leading the Finance Division in Perth. Sandra has held various senior leadership positions with National Australia Bank Limited, most recently heading up the Corporate and Institutional Bank Legal team in Western Australia and Queensland.

Sandra has previously held positions on the Art Gallery of Western Australia Foundation Council, Italian Chamber of Commerce & Industry Committee and the Law Society Commercial Law Committee.  

She holds a Bachelor of Laws from the University of Western Australia, and post graduate qualifications from both the Securities Institute of Australia and the Australian Institute of Management.