Redflow board members

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Brett Johnson


Brett has more than 10 years experience as a director of listed companies, including Scott Corporation Limited and Helloworld Limited.  At Scott, Brett was the only independent non-executive director representing minority shareholders and chaired the Audit Committee.  At Helloworld, he was a member of the Audit Committee and Remuneration & Nominations Committee.  He was also Chairman from August 2014 to December 2015, during which Helloworld was subject to a successful takeover offer. Brett also has more than 25 years experience as General Counsel of listed Australian companies, including Qantas Airways Limited (1995-2012).  In those roles, he was a member of the company’s’ executive committee and attended most board meetings.  

Simon Hackett


Simon is the founder of Internode and past co-director of NBN Co Limited, Simon joined the Redflow Board in November 2014 and relinquished his role at the NBN Co Limited in April of 2016 to focus on Redflow. Simon added Redflow to his investment portfolio of innovative Australian technology businesses, which includes AvSoft and UltraServe. He founded Internode in 1991, growing it to become Australia’s largest privately owned broadband company by 2011, when he sold it to ASX-listed iiNet. He acted as a Non-Executive Director of iiNet from August 2012 until November 2013, when he stepped down to become a Non-Executive Director on the board of NBN Co Limited.

David Knox

Non-Executive Director

David Knox served as Chief Executive Officer and Managing Director of Santos Limited from 2008-2015. David was previously Managing Director for BP Developments in Australasia from 2003 to 2007. He has worked for BP in the United Kingdom and Pakistan, and has held management and engineering positions at ARCO and Shell in the USA, Netherlands, the United Kingdom and Norway.  David is originally from Edinburgh, Scotland and has a BSc Hons in Mechanical Engineering and an MBA. He is a fellow of ATSE, and FIE Aust and a graduate of the AICD community.

Jenny Macdonald

Non-Executive Director

Jenny Macdonald has extensive experience working with ASX-listed and global companies at the CFO and general management level. She serves on the board and audit committee of API, the parent company of Priceline Pharmacy, Soul Pattinson Chemist and Pharmacist Advice. Previous roles include non-executive director for hipages and Fitted for Work; CFO and interim CEO at Helloworld Limited; and CFO and General Manager International with REA Group. Jenny chairs the Audit Committee for Redflow..

John Lindsay

Non-Executive Director

John Lindsay is an Australian businessman and technology entrepreneur, who has previously held senior technology leadership roles as Chief Technology Officer (CTO) at ASX-listed company iiNet Limited, CTO at Internode and General Manager of Chariot Internet. Mr Lindsay, who is co-founder and company director of Adelaide-based enterprise cloud computing consultancy jtwo solutions Pty Ltd, has held also board-level roles for several privately-owned companies. Since February 2017, Mr Lindsay has been a member of the board of the Australian Telecommunication Industry Ombudsman.


David Brant

Non-Executive Director

David Brant, an experienced businessman with strategic manufacturing expertise, is a Fellow of the Australian Institute of Company Directors (FAICD) with more than two decades of manufacturing and corporate experience in Australia and countries in Asia. Mr Brant’s background includes more than 20 years of senior management roles with Norgren, a manufacturer of automation equipment for a wide variety of industries. He then worked for Redflow as Vice President Strategy and Corporate Development from 2010-12 and ran his own start-up energy storage business Energy365 from 2014-17.



Redflow executive team

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Tim Harris


Tim is a seasoned business executive with extensive experience working for international companies. Prior to joining Redflow, Tim was Chief Commercial Officer for Chorus, New Zealand’s largest telecommunications infrastructure company. Prior to that, Tim spent a decade in senior executive roles with BT, the British multinational telecommunications company that is the UK’s largest provider of fixed-line, mobile, broadband and media services, which has operations in 180 countries.


Richard Aird


Richard is a professional operations manager with more than 20 years of experience in commercial development and operations in construction and rural industries. His success in large-scale rural development enriches Redflow with a wealth of business experience. Richard, who has worked in a range of roles at Redflow since 2009, has first-hand knowledge of customer requirements for grid-connected and off-grid electricity generating and storage systems in both regional and remote areas.


Trudy Walsh


Trudy, a qualified CPA and former CFO for the Tritium, has strong finance experience across a number of industries with both national and international exposure. With a real passion for the business and not just the numbers, Trudy has more than 15 years experience as Country CFO or Senior Business Unit Finance Executive for global companies including Bucyrus, Caterpillar Global Mining, Ansaldo and ABB and several privately held companies. Trudy is an integral part of Redflow’s senior executive team working closely with senior managers on the company’s growth and commercialisation strategy.

Dr. Alex Winter

CONSULTING EngineerAlex-Winter

In the lead-up to the foundation of Redflow, Alex spent six years working on the research and development of flowing electrolyte batteries, using his expertise in fluid dynamics and mechanical design. Alex has significant international experience, having lived and worked in Austria and Argentina in various consulting, managerial and engineering roles. He is responsible for product development and design for manufacturing within Redflow and manages a team of nine engineers and technicians. Alex holds a Bachelor of Engineering with first-class honours and a PhD in the field of mechanical engineering, both from The University of Queensland.

Dr. Mike Giulianini

Chief Technology OfficerMike-Giulianini

Mike heads Redflow’s systems engineering department, assisting system integrators with using Redflow’s ZBM in energy storage systems. He has more than 13 years of experience as a systems engineer, having held management and executive positions. He has supervised and managed a multitude of projects in energy storage, renewables integration and defence telecommunications. Mike has attained his Laurea Magistrale in electronic engineering, a PhD related to organic photovoltaics from the Queensland University of Technology and a graduate certificate in research commercialisation.