ESIA Board & Exec

ESIA Board

Ric Brazzale, President

Ric Brazzale (B Comm, MBA) is Chairman and Cofounder of the Green Energy Group. The Group comprises Green Energy Trading, Green Energy Markets and National Carbon Bank of Australia. The group supports renewable energy and energy efficiency businesses to roll out clean energy solutions to customers. The Group originates renewable energy, energy efficiency and carbon credits across Australia. Through Green Energy Markets, the business provides market insights and analysis that assists clients in making better decisions in the rollout of clean energy. Ric has more than 35 years’ of energy sector experience including a range of senior roles within the private sector and infrastructure companies. As well, prior to establishing Green Energy Group in 2007, Ric was Executive Director of the Business Council for Sustainable Energy, forerunner to the Clean Energy Council, a leading advocate for renewable energy and energy efficiency markets in Australia. Ric is an advocate for clean energy solutions to deal with the impending threat of climate change. Ric is President of the REC Agents Association, President of the Voluntary Carbon Markets Association and President of Solar Citizens. Ric has participated in all state Governments’ initial advisory committees or processes for the development of energy savings schemes and has participated in federal advisory committees in relation to energy efficiency. Ric was inducted to the Australian Solar Council Hall of Fame in 2016.

Tania Oldaker, Vice President

Tania Oldaker is Chief Operations Officer at Ecovantage and is responsible for the organisation’s national compliance, human resource management, finance, Information and technology, legal and contractual management, health and safety, governance and risk. With more than 20 years’ experience in general management and C-suite roles, Tania has specialised in areas of commercial operations, strategic planning and business growth in small, medium and large businesses, private enterprise, and corporate publicly listed organisations. On a day-to-day basis, Tania is primarily involved in the VEU, ESS and PDRS schemes and has an understanding of the RET and ERF. Prior to entering the energy industry, Tania performed key roles in vastly different industries such as digital health (technology strategy, design, development, deployment and support) and onshore manufacturing (operations, procurement, importing / exporting, transport, after sales warranty / support and ISO accreditation). Formally a director on the board of the Medical Software Industry Association, Tania has served to represent digital health vendors in a heavily regulated industry, underpinned by antiquated standards and proprietary solutions to work with the Australian Digital Health Agency on open standards that supported interoperable solutions, helping to connect the health records of Australians and transmit health information seamlessly. Tania has served on the ESIA Board during 2025 as Assistant Secretary. Tania's academic achievements include a Bachelor of Applied Management, Advanced Diploma of Applied Management, Diplomas in Legal Practice - Contract Law, Human Resource Management and International Trade, a Certificate III in Quality Assurance – Internal Auditor and is certified in OH&S Return to Work Coordination.

Leigh Simpson, Secretary

Leigh Simpson (BBus) is Managing Director of Echelon West which partners with founders and management teams to accelerate growth, solve complex problems, and deliver commercial outcomes in regulated markets, including energy efficiency. Leigh has worked in the energy sector for more than a decade and is a regular contributor to working groups and program consultations. His focus is on strengthening certificate programs, supporting genuine abatement, and fostering meaningful industry engagement. Before founding Echelon West in 2025, Leigh provided advisory and consulting services through Lakin Environmental for several years. He previously led an AP/ACP company supporting large commercial clients with energy efficiency upgrades across Victoria and New South Wales. Leigh takes a particular interest in the development of new activities across the VEU, ESS, PDRS, and Commonwealth programs. His efforts are directed toward ensuring these activities create practical opportunities for ESIA members, APs and ACPs, energy service companies, and product manufacturers.

Jo Hoatson, General Board Member

Jo Hoatson (B Comm) is Chief Executive Officer of Creditex, a leading certificate aggregation business within the current energy efficiency certificate creation market, which operates as part of the Emerald Group, a company at the forefront of technology innovation, product efficiency, and market delivery. Jo has more than fifteen years of experience in energy efficiency and carbon markets. Prior to Creditex, Jo founded, owned, managed and successfully exited National Carbon Bank of Australia, one of the early pioneers in commercial lighting and measurement and verification certificate creation under the NSW ESS and VEU. Jo has a deep knowledge of the commercial and regulatory landscape of the schemes sector in Australia across a diverse range of upgrade activity types and has been closely and proactively involved in program and compliance reforms. Jo has direct engagement in heat pump, air conditioning, solar battery and PV upgrades under the NSW ESS and PDRS, VEU, SRES and SA REPS. Jo's focus is on providing trusted service and technology innovation for businesses, installers, and retailers to access the financial incentives that accelerate electrification and decarbonisation across Australia. Jo has decades of prior experience working in commercial enterprises in areas of business development, financial management, governance and start up environments. Jo returned to the ESIA Board in 2025 after a break from previous service from 2015 to 2019, the latter two years of which she served as Vice President. Jo holds a position on the Board of Northmore Gordon.

Hamish McGovern, General Board Member

Hamish McGovern (BE Elec, BSc, MBA) is Managing Director of Northmore Gordon, a large-volume certificate creator under the VEU program and a consultancy helping large businesses to decarbonise and reduce their energy use. Hamish has worked in energy efficiency since 2011 and regularly participates in energy savings scheme stakeholder engagement initiatives. He has a deep understanding of the VEU, ESS and ERF deemed and Measurement and Verification (M&V) methods as well as the regulations and compliance requirements. Prior to Northmore Gordon, Hamish spent 20 years building enterprise IT & ICT solutions working in software development, IT infrastructure, sales, marketing and product management

Jens Mozer, General Board Member

Jens Mozer (BEng (Mech), MIEAust, CMVP, CEM, PMVA) is a Director and the Head of Advisory at EC Focus Pty Ltd, a trusted provider of energy, water, and waste management services to Australia’s commercial and industrial sectors. As well as a qualified mechanical engineer and licensed air conditioning and refrigeration technician, Jens is also an approved Measurement &Verification Professional (MVP) under the NSW Energy Savings Scheme (ESS) and Victorian Energy Upgrades (VEU) program, as well as an accredited NABERS assessor. Jens graduated from Rotterdam University of Applied Sciences and began his career at Cummins Holland before relocating to Australiain2009. He worked as an energy consultant from 2010 and joined EC Focus in 2013, where he now oversees the company’s Advisory and Measurement & Verification functions, including project-based activities in the various incentive programs, as well as professional services in energy audits, climate transition, performance ratings, and energy management systems. Jens is a member of the Institute of Engineers Australia, the Association of Energy Engineers (USA), and the Efficiency Valuation Organization, and is an Associate Auditor (IRCA) for ISO50001:2018Energy Management Systems.

Mahsa Sistani, General Board Member

Mahsa Sistani (B Eng Civil, CMVP) is the Chief Operating Officer at Electric Future Sustainability Services, one of the fastest-growing Accredited Service Providers helping customers transition toward a low carbon economy. In November 2025, Electric Future made The Australian Financial Review's 2025 Fast Starters list. Mahsa brings over 13 years of experience in state-based energy efficiency programs across Australia, with deep technical and operational knowledge of the ESS, REPS, VEU and SRES. Throughout her career, she has worked closely with scheme administrators, regulators and policy makers, actively representing the interests and practical realities of industry participants. Prior to her work in Australia, Mahsa spent a decade in Iran as a civil engineer, designing hydropower projects and contributing to sustainable infrastructure development, an experience that underpins her strong technical foundation and systems-thinking approach. Mahsa proactively engages with policy makers and regulators to highlight design and implementation concerns, advocating for a balanced and practical approach to audits and regulatory expectations. Mahsa leverages her hands-on industry experience, cross-scheme knowledge and collaborative leadership style to support the ongoing evolution of Australia’s energy efficiency frameworks. Her comparative insight across multiple schemes, coupled with a deep understanding of the challenges and opportunities faced by ESIA members, brings a unique and valuable perspective to board deliberations. Mahsa’s open, consultative approach and commercial acumen enable her to bridge the gap between policy design and on-the-ground implementation.

Non-Board

Ben Henderson, Treasurer

Ben Henderson (B Comm), is the Chief Executive Officer and Director of Microgrid Power Group and non-executive Director of Next Green Group. Ben was co-founder and for over a decade was Chief Executive Officer of The Green Guys Group and subsidiaries including OptiTech International and GreenForms Trading. Ben has been involved in energy savings schemes since 2010 participating in many stakeholder engagements for the ESS, PDRS, VEU and REPS and has engaged in the ERF. Ben's expertise and entrepreneurship includes delivering energy efficiency, renewables, power purchasing agreements and development of micro-grid solutions. Through the development of unique and vertically integrated solutions, Ben has overseen delivery of projects across more than 8,000 sites nationally. Ben previously as ESIA Secretary and General Board Member for eight years.

Executive Director

Scott McKenry (Bio TBC)