About
Executive team
 Tammy Chu, Executive General Manager Major Projects & Entura | Tammy was appointed as Managing Director of Entura in 2011. In 2024, she stepped into the role of Interim EGM, Construction. She is now Executive General Manager Major Projects & Entura, leading Entura as well as the delivery of Hydro Tasmania’s major projects program comprising the redevelopment of the Tarraleah power scheme and the proposal for a pumped hydro energy storage project at Cethana. As a civil engineer, Tammy specialised in the design and construction of mini-hydro and hydropower systems, project management, hydropower investigations, prefeasibility and feasibility studies, environmental assessments and approvals, resource investigations and resource water management. Tammy is the Vice President of the Board of the International Hydropower Association and sits on the Civil College Board of Engineers Australia. She was the first female president and now past president of the Tasmanian Division of Engineers Australia and is an Engineers Australia National Congress representative. She has also served on national and international steering committees in both the water and energy sectors. Tammy holds a Master of Business and Administration from Chifley Business School, Australia, is a fellow of Engineers Australia, and a graduate of the Australian Institute of Company Directors. |
|
 Wayne Tucker, General Manager | Wayne joined Entura in 2023 as the Director of Grid and Power. In that role he led Entura’s Grid Connection and Power Systems team, Secondary Electrical Team, Primary and Transmission Team and the Protection and Test Services Team, to deliver commercial outcomes in line with business targets. He was appointed as General Manager in April 2026. Wayne has more than 30 years of experience in the power sector, including 12 years of experience in executive and senior leadership roles across strategy, engineering, asset management, project delivery, regulation, operations, customer management and business development. He has a deep understanding of the Tasmanian power system, having recently been the Executive General Manager of Growth at TasNetworks. He has also chaired the Australian Power Institute and participated in various other industry forums. Wayne holds a Graduate Diploma of Engineering Maintenance Management from Monash University and a Master of Business Administration from Deakin University. |
 Dr Amanda Ashworth, Director Strategy, Sales & Commercial | Amanda has been with the business for 25 years and has held many positions including Team Leader, Business Development Manager, Sales Program Manager and Strategy Manager. She’s been part of Entura’s Executive Team as Director of Strategy, Sales and Commercial and as interim Managing Director. She is well known for her initiation and carriage of the Entura clean energy and water institute (ECEWI) since its launch in 2012, which has delivered training to Entura’s clients nationally and internationally. Through ECEWI and other connections, Amanda has maintained a significant international profile across the Indo-Pacific. Amanda has over 30 years of experience in multidisciplinary research and practice on a wide range of environmental, social and economic topics. She has considerable experience in managing complex environmental approvals for large infrastructure projects and in developing strategies and plans and evaluating their success. Amanda has also been involved in project direction of major engineering projects. Amanda holds a PhD, Graduate Diploma in Environmental Studies (with Honours) and Bachelor of Arts (Public Policy and Sociology). Amanda was an Anglo-Australian Fellowship recipient hosted at Durham University UK for her research into risk and risk communication. She has spoken at numerous international conferences and is the author of several peer-reviewed papers. |
 Dale Bryce, Director Water | Dale joined Entura in 2014. He combines strategy, leadership, and commercial expertise to deliver better outcomes. As an executive, he now drives strategic growth and delivery excellence across water infrastructure, hydropower and environmental services, while directing complex, multi-disciplinary infrastructure projects, programs and portfolios. Previously, Dale led Entura’s Hydropower and Headworks Group, Water and Renewables Group, commercial project delivery, and strategy, sales and marketing functions. Before joining Entura, he worked with Jacobs, Mallesons, the Port of Melbourne Corporation, and Lloyd’s Register. Dale is a Graduate of the Australian Institute of Company Directors, a qualified and Certified Project Director with the Institute of Project Management and brings previous NFP board experience and board exposure through a long executive career. |
 Silke Schwartz, | Silke has over 20 years of experience in the renewable energy industry, working with Entura for more than 15 years for Australian and international clients. She has managed several of Entura’s teams and had a leading role in business development activities. Her areas of expertise include project management and project directorship of multidisciplinary projects, such as Owner’s Engineer roles, feasibility studies and technical due diligence assessments. As Director Power, she will lead Entura’s renewables development team as well as our primary and secondary electrical, grid connection and power system studies, and electrical protection and testing services teams. Silke holds a Bachelor of Engineering in Naval Architecture and has published a number of technical papers during her career. |
 Donald Vaughan, Technical Director Power | Donald has over 20 years of experience providing advice on regulatory and technical requirements for generators, substations and transmission systems. He has worked for all areas of the electrical industry, including generators, equipment suppliers, customers, NSPs and market operators. Donald specialises in the performance of power systems. His experience in generating units, governors and excitation systems provides a helpful perspective on how the physical electrical network behaves. Graduating from the University of Tasmania in 1993 with honours in Electrical Engineering, Donald’s early career included work on automated truck loading systems and bulk fluids handling in the petrol industry. In 1996 he commenced work designing and commissioning generator and power station control systems and ancillary plants, before moving into generator performance, where he defined and implemented compliance tests for generating unit controls against the electricity code. Before taking up the position of Technical Director Power, Donald was a Principal Consultant at Entura. Prior to that, he led Hydro Tasmania’s Power Systems Performance team through the business’s entry into the Australian National Electricity Market and the connection and commissioning of Basslink. |
 Richard Herweynen, Technical Director Water | Richard has more than 30 years of experience in national and international dam and hydropower engineering, covering all phases from investigations and feasibility studies, to detailed design and construction support, operation maintenance, risk assessment and upgrades. Richard has been the lead designer on a number of major projects, including three RCC dams within Australia, a number of significant dam upgrades, the tender design and documentation of a hydropower project in Malaysia, and a concrete faced rockfill dam project in Nepal. Richard provides a technical governance role on a number of large projects. He currently chairs the Independent Technical Review Panel for the Baleh Hydro Electric Project in Malaysia, and chairs the Technical Working Group for the Tarraleah Hydropower Redevelopment Project and the Cethana Pumped Hydro Energy Storage Project. He was the independent dam safety engineer for the Murum Hydro Electric Project in Malaysia, during the later years of construction, which involved readiness for impoundment, first filling, and first year of operation. He is the independent technical reviewer on a number of dam safety reviews and dam upgrade projects in Tasmania. Richard is active in the wider profession: he is an associate member of ANCOLD and was part of the ANCOLD working group for concrete gravity dams, and is the chair of the ICOLD Technical Committee on Engineering Activities in the Planning Process for Water Resources Projects. He played an active role in developing the young professionals group at both ANCOLD and ICOLD. He has published over 30 technical papers predominantly on dam engineering including dam safety, risk assessment, concrete-faced rockfill dam design, roller-compacted concrete dam design, the unique challenges of older style post-tensioned anchors, and managing first filling. He has also published papers on other issues such as sedimentation caused by landslides, fish passage on dams and the displacement of diesel generation with hydropower. Richard graduated from the University of Tasmania in 1989 with first class honours in Civil Engineering. He achieved a Graduate Diploma in Management (Technology) from Deakin University in 1998, and a Masters in Geotechnical Engineering from the University of NSW in 2014. In 1995 he was awarded the IEAust Tasmanian Young Professional Engineer of the Year, and in 2012 was awarded the Tasmanian Professional Engineer of the Year Award. |
