TEAM BIO

Dr. Verena Streitferdt, PhD

President Director

Verena Streitferdt is an expert in sustainable energy, climate policy, and finance with more than 11 years of consultant experience and 15 years of training/facilitation experience. She earned her doctoral degree from the Institute for Sustainable Futures (ISF), University of Technology Sydney, Australia (co-supervised by the Wuppertal Institute, Germany) with her PhD research focused on how public financial instruments can assist in leveraging private sector investments into the sustainable energy sector. She also holds certificates as a: Frankfurt School of Finance ESG investment expert, GHG Management Institute certified carbon accountant, DGNB Sustainable building standard consultant, and RENAC Certified Green Finance specialist.

As a short-term consultant, she has worked for organisations like the Asian Development Bank, World Bank, UNEP, the ASEAN Centre for Energy, RENAC, and the ‘Deutsche Gesellschaft fuer Internationale Zusammenarbeit’ (GmbH). In addition, she also has conducted various capacity development programs on climate change and sustainability for international development organisations and government representatives in Southeast Asia. In one of her recent positions, she assisted the city of Denpasar in investing in EE street lights by providing an impact analysis and the financial model to determine the availability of payments.

Sindy Gita Purnama, S.S.

Commissary & Administrator

Gita graduated from Udayana University, majoring in English Literature, and has a strong interest in literature. She has sufficient knowledge in translation (English-Indonesian), communication, and administration. While at college, Gita was a part of the student organisation, and she also volunteered in a non-profit cultural institution from 2016 until 2018. She had an opportunity to participate at the Annual Meeting of IMF-WBG held in Bali in 2018 as a local staff member. Gita had been in the tourism industry for two years. She took a role as a reservation officer in one of the travel agencies in Bali, which also supported sustainable travel. Her combined experiences make her a reliable person for the team.

Julia Rahmi, S.H. LL.M.

Senior Consultant, Legal Manager, and Project Manager

Julia is a legal and project management professional with over 18 years of experience. Initially working on corporate clients in a local law firm, she grew her interest in environmental law and pursued a Master’s degree in Global Environment and International Climate Change Law (LL.M) at Edinburgh University. She has been involved in various sustainable development projects across Indonesia involving private and public sectors, such as energy efficiency, low-carbon development, renewable energy systems, sustainable finance, and strategic planning for climate change mitigation. Her proficiency in organisation internal governance also made her expertise include human resources, handling public relations and government relations.

She joined Tri Hita Consulting in October 2022 and is currently responsible as the HR Manager, Legal Counsel, Project Manager, and Expert Consultant. Recently she is involved in an energy efficiency project for urban streetlights in Bali, and climate change mitigation consulting for a hydroelectric power company.

Marcella Stefanny W., S.I.Kom.

Capacity Building Consultant, Project Manager

Marcella has worked as a communications and training coordinator for 7 years, most recently successfully managing offline workshops for energy efficiency in the industrial sector in Indonesia, supporting communications & moderating network activities. Throughout her career in Tri Hita Consulting, she managed to channel her deep interest in climate change, environment, and social issues. Her specialty is in marketing communication, branding, and business development.

Reza Memary, PhD

International Senior Consultant in GHG Management

A sustainability expert with a PhD in Life Cycle Environmental Impact Assessment from the University of Technology Sydney and extensive experience in Life Cycle Assessment (LCA). Reza has worked across academia, consultancy, and industry to advance sustainability and the circular economy. Previously, he has worked as a senior sustainability specialist for Thinkstep-anz with a focus on conducting LCA studies for Environmental Product Declaration development for industries such as cement, bitumen, and asphalt plants. He has also worked as a lecturer at Flinders University, he taught governance and sustainability, GRI standards, and operations and supply chain management. At Tri Hita Consulting, Reza is an International Senior Consultant in GHG Management, specializing in emissions assessments, sustainability strategies, and regulatory compliance to support organizations in meeting climate commitments.

Marya Tisnandya,  S.PWK.

ESG & Climate Change Consultant, Project Manager

With a strong background in risk assessment, Marya Tisnandya has honed the ability to evaluate and mitigate potential hazards in various business scenarios, both from physical and transition risks. Her expertise extends to Environmental, Social, and Governance (ESG) factors, reflecting her commitment to sustainable and ethical business practices. She has a deep interest in the carbon market, understanding its pivotal role in combating climate change and promoting sustainable business practices. Marya Tisnandya has consistently demonstrated her enthusiasm for ESG principles and carbon markets by actively participating in related research and continuously updating her knowledge in these evolving fields. Her experience in risk assessment combined with her passion for ESG and the carbon market makes her a unique asset, capable of assessing both traditional business risks and those associated with sustainability and carbon trading.

Divine Wijaya S.Pi, MA.

Climate Change, Carbon, and GHG Consultant

Divine completed a bachelor’s degree at Bogor Agricultural University (IPB) in Aquatic Product Technology, then earned a master’s degree in Environment, Development, and Sustainability at Chulalongkorn University. Divine is enthusiastic about driving change in environmental sustainability and energy transition. With a comprehensive understanding of environmental issues and the impact of climate change, Divine recognizes the importance of reducing GHG emissions and transitioning to clean, affordable, reliable, and sustainable energy sources. Divine’s experience greatly supports her role at Tri Hita Consulting as a researcher, where she has managed resources, developed strategic plans, and prepared documentation for GHG/Carbon Credit projects

Claudita Putri, S.E.

Accounting and Finance Lead Administrator

Dita graduated from Slamet Riyadi Surakarta University majoring in Accounting. During her study, Dita succeeded in getting a full scholarship from the Government for her education from beginning to end of her study. Dita was also active in organisations both on campus and outside campus such as organisations in the Church. Before graduating from the University, Dita had worked with her lecturer as an audit staff. After graduating from university, Dita worked at the Accounting Firm as an accounting staff. Dita also had experience as an admin staff in a private school in Surakarta. Currently, Dita is working to pursue her career in the accounting field at Tri Hita Consulting Bali.

Karensa Nanda Putri K., S.PWK.

Junior Consultant

Karensa is a passionate and results-driven sustainability specialist with a strong background in the retail industry. Her expertise spans non-profit, research, and corporate sustainability, where she has successfully achieved green certification for multiple retail malls. With a deep understanding of environmental issues and the impacts of climate change, Karensa recognizes the urgent need for GHG emission reduction and a transition to clean, affordable, and sustainable energy sources. As a Junior Consultant at Tri Hita Consulting, she specializes in GHG inventory, focusing on GHG/Carbon Credit projects.

Sintya Chalifia Azizah, S.I.Kom.

Business Development & Communication

Sintya is a dedicated and forward-thinking communication professional with a proven track record in both internal and external communications. With a solid background in the energy and technology industries, she has developed a deep understanding of how to create impactful communication materials, including social media content, articles, press releases, and newsletters, that resonate with diverse audiences. At Tri Hita Consulting, Sintya applies her expertise to support sustainability initiatives, enhancing stakeholder engagement and driving long-term change. Her creativity and strategic insight deliver communication solutions that inspire action for a sustainable future.

Tiana Feruni, S.Sn.

Business Development Manager

Tiana is a multi-skilled consultant with 20 years of experience, who has been working in the development and sustainability sector since 2017. With a degree in Visual Communication Design from Trisakti University, Tiana has honed her skills in graphic and UI design as well as in research, analysis, report writing, editing, and translation. She works with consulting firms and brand agencies, including Tri Hita Consulting, and has worked on projects for clients, such as the World Bank, Unicef, GBPN, as well as top brands, including Unilever, Nutricia, Nokia, and Samsung. Her expertise covers a range of topics, including jobs and poverty, healthcare, population and civil registration, electronic and information technology, green building, and environmental and social safeguarding.

Aurellya Rahmada D., S.S., M.PSDM.

Human Resources Manager

Aurel earned a master’s degree in Human Resources Development from Universitas Airlangga, where she developed a strong foundation in understanding organizational dynamics and people management. Combining her academic background with practical business acumen, Aurel has built extensive experience in recruitment, talent management, and employee engagement across diverse industries. Her credentials include certifications from Indonesia’s BNSP as a Recruitment & Selection Officer and from the IEEEL Institute as a Certified Organizational Development Officer, further solidifying her expertise in aligning organizational goals with employee development.

Kelly McDonald

Officer, State Quality and Accountability

Kelly has national and international leadership experience building and facilitating organisational alignment and sustainability across large organisations or networks with a clear mission focus. She has advised and supported systemic change across different areas of practice with the Ford Foundation, GIZ, Daimler, IUCN, National CASA/GAL and others. She spent her career in the US and Asia, focusing on developing and leading by cultivating strong teams, communities and partnerships.
With background from NGO, government and private sector organisations to enable strong communities and greater social justice: equity, education, health, economic empowerment, the environment, and the arts.

Fabby Tumiwa

Executive Director and an Energy Transition Strategist, Indonesia

Fabby Tumiwa is an energy transition strategist and the Executive Director of Institute for Essential Services Reform (IESR). For more than 20 years, Fabby Tumiwa has worked on a wide range of energy policies and regulations. He is an advocate for renewable energy and energy efficiency. He advises Indonesian government agencies, businesses, non-governmental organisations (NGOs), and multilateral development organisations on electricity,  renewable energy and energy efficiency, energy finance, and climate change policies. From 2006 to 2018, he served as Indonesia’s delegate to climate change negotiations. He was a member of the various Working Groups under the National Council on Climate Change from 2009 to 2014. He served as a member of the Indonesia Climate Change Trust Fund (ICCTF) Steering Committee from 2015 to 2019. Fabby Tumiwa is chairman of the Indonesia Solar Energy Association since 2021. He is a Country Adviser of Southeast Asia Energy Transition Partnership (SEA-ETP) and was a member of the Technical Advisory Group (TAG) of Energy Sector Management Assistance Program (ESMAP) of the World Bank in 2022, and currently, he serves as a member of Energy Transition Accelerator High-Level Consultative Group, an initiative by US State Dept, Rockefeller Foundation, and Bezos Foundation.

Timon Wehnert

Head Berlin Office and Co-Head of Research Unit International Energy Transitions · International climate and energy policy, Germany

Timon Wehnert has been working in energy and climate policy research for more than twenty years. Since 2011 he has been working as a senior researcher at the Wuppertal Institute, Germany. Since 2022 he co-leads the Research Unit International Energy Transitions of the Department Future Energy and Industrial Systems.

His current work focuses on structural change and regional innovation systems in the context of climate policy-driven transition processes, such as the phase-out of coal and decarbonisation of the industrial sector. Among other issues, he coordinates the activities of the Wuppertal Institute within the framework of the Secretariat of the Coal Regions in Transition Initiative of the European Commission and Wuppertal Institute’s activities on Just Transition in coal regions globally.

Prior to his engagement with the Wuppertal Institute (between 1999 and 2011) he was a research fellow at the Institute for Futures Studies and Technology Assessment (IZT), Berlin, working on matters relating to sustainable energy systems: long-term energy foresight and scenarios for the energy sector, potentials of renewable energy technologies as well as European energy research policy.

Milou Beerepoot

Programme Manager Regional Programmes Neighbourhood South – Energy

Milou is an experienced Energy and Climate Change Specialist with a demonstrated history of working in the international affairs industry. She is skilled in Clean Energy Development, Energy Policy Analysis, Sustainable Development Project Management and Proposal Writing. She has extensive working and living experience and in-depth understanding of critical issues and stakeholders involved in climate and energy domains in developing and transition countries and is a highly organised professional with academic record (PhD, Delft University of Technology) and Certified Expert in Climate & Renewable Energy Finance (Frankfurt School of Finance & Management).

Milou is currently working at the European Commission as a Programme Manager of Regional Programmes Neighbourhood South – Energy for the European Commission. Previously, she worked with UNDP, GIZ, King Mongkut’s University of Technology Thonburi, the International Energy Agency and Delft University of Technology.

Peter du Pont

Co-Founder and Co-CEO, Asia Clean Energy Partners

Peter du Pont is the Co-Founder and Co-CEO of an Asia-based international consultancy, Asia Clean Energy Partners, which provides services and solutions for clients in the development and business sectors. He is based in Bangkok and has more than 30 years of experience developing sustainable energy and climate programs in the U.S. and Asia. He has carried out assignments related to the design, implementation, and evaluation of clean energy policies and plans, energy and climate finance, and climate change programs. He contributes to the clean energy ecosystem in the region through a variety of assignments, including as Southeast Asia Regional Coordinator of the Private Financing Advisory Network (PFAN); his founding and continuing role helping to lead the Asia Clean Energy Forum; and through a variety of strategic advisory and capacity-building assignments for public- and private-sector clients.

Rebecca Self

Founder & Managing Director, Seawolf Sustainable Consultancy

Rebecca founded Dutch-based Seawolf Sustainability Consulting in 2022. Her organisation provides independent sustainability advice to accountants, finance professionals and management teams across the world. Prior to this role Rebecca was the Director of Sustainable Finance at the environmental consultancy and carbon offset project developer South Pole. Rebecca has extensive experience of the financial services industry, as she worked for four large international institutions in London and Zurich over approximately two decades. In her final industry role, Rebecca was appointed to be the first Chief Financial Officer (CFO) of Sustainable Finance at HSBC Holdings plc in 2017. She holds a BSc in Economics and Politics, a Masters in Sustainability Leadership from University of Cambridge, and is a Chartered Global Management Accountant. Rebecca is a Board Member at the ICAEW (International Chartered Accountants of England and Wales) Financial Services faculty.