Management Team


David Brown

Chief Executive Officer 

David has over 40 years experience in the energy industry across electricity generation, energy retailing, market design, and energy trading. His key strengths include strategy development and execution, business transformation and innovation, leadership and cultural change.

He has worked in the United Kingdom and Australia in operational roles, management consultancy, senior management and Chief Executive roles in both the public and private sector, and has also held Board Director and Chair positions.

David is a chartered engineer with a Bachelor of Science First Class Honours Degree in Natural Gas Engineering and a Diploma of Financial Services (Electricity Derivatives).

Daniel Hill

Acting General Manager Assets and Operations

Daniel is a Larrakia/Wadjigan man with 10 years of experience in the mining industry across technical, operational and leadership roles. His key strengths include risk management, asset management, process safety, data analysis, cultural change and business transformation. He holds Bachelor Degree in Chemical Engineering from The University of Melbourne and is a member of the Engineers Australia Northern Division Committee.

Daniel Hill Territory Generation
Maria Walters

BBUSCOM, CPA, GAICD

General Manager Finance and Corporate Services

Maria is a Certified Practising Accountant with significant experience gained across her career in the power generation industry. Maria holds a Bachelor of Business and Commerce, and has held key board positions on several external boards over a number of years. She brings strong technical accounting, strategic and analytical skills as well as extensive experience and knowledge to the corporate services functions.

Eddie Mallan

General Manager Commercial 

Eddie is an experienced executive who has a history of working in a range of industries, including ports, mining, supply chain, logistics, mass manufacturing and technology. He is skilled in negotiation, business planning, operations management, strategic sourcing and business improvement, and has experience in both the private and public sectors.

Rebecca McKenzie

BE (HONS), BEC, MIE AUST

General Manager Major Projects 

Rebecca holds Bachelor Degrees in Mechanical Engineering and Economics. Rebecca has gained extensive experience in major project development and delivery, business analytics, strategy, commercial contracts and the development of the wholesale energy market throughout her career, from various roles in Power and Water Corporation and Territory Generation.

Hieu Nguyen

BSc, LLB, LLM, GAICD

General Counsel & Company Secretary

Hieu is an executive with over 15 years legal experience in private and government enterprises and has held a number of board and committee positions. Hieu helped to establish the Business Services function of Territory Generation covering ICT, Environment, Risk & Compliance, Records Management, Facilities, Communications, Stakeholder Management and Legal, and has been involved in number of large commercial contractual negotiations during his career.

 HieuNguyen