• Email: aristeidis.tsakiris@un.org
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Bio

Aristeidis Tsakiris is a Mechanical Engineer with over ten years of experience driving energy efficiency initiatives globally. With an MSc in Sustainable Energy from the Technical University of Denmark (DTU), he combines technical expertise with a deep understanding of policy and digital systems to support sustainable development in emerging and developing economies.

At the UNEP Copenhagen Climate Centre (UNEP-CCC), he leads the development of Monitoring & Evaluation systems, digital dashboards, and web-based Knowledge Management Systems (KMS). His work enhances data-driven decision-making and supports the dissemination of best practices through webinars, podcasts, and e-learning platforms, while also contributing to project development, reporting, and stakeholder engagement.

Previously, Aristeidis held key roles at the Copenhagen Centre on Energy Efficiency (C2E2), where he managed digital tools, coordinated over 100 webinars, and supported international workshops and publications. His early career in research and consultancy focused on energy-efficient buildings and transport, laying a strong foundation for his current impact in global energy transition efforts.

• Email: gabriela.pratadias@un.org
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Gabriela Prata Dias is Head of the Copenhagen Centre on Energy Efficiency (UNEP Copenhagen Climate Centre). Previously she was at ADENE, the Portuguese National Energy Agency, where she was the Coordinating Director (CEO) with responsibility for the implementation of energy efficiency policies in Portugal. She has MSc qualifications in Energy and Environmental Economics and Policy, coupled with a very broad and long experience in energy efficiency, including with the Energy Charter Secretariat in Brussels, in private business and as a researcher.

• Email: viktor.peter@giz.de
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Blockchain governance expert at Deutsche Gesellschaft für Internationale Zusammenarbeit

• Email: je@powerledger.io
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Bio

James brings an in-depth knowledge of the role technological disruption plays in environmental conservation. James’ first contribution to the conservation sector, was contributing to the designing and building a zero-carbon smelting process called HISmelt used and implemented by Rio Tinto. He also worked as Lead Researcher in the Australian Senate at the Office of Senator Scott Ludlam, authoring a series of reports on the renewable energy transition. At Power Ledger, James works on project development of blockchain applications for renewable electricity trading, asset management, carbon credits and distribution market optimization. James' ongoing research at Curtin University Sustainability Policy Institute is focused on technological disruption within smart cities and the underpinning utility sectors. At the both the Australian Conservation Foundation and Conservation Council of Western Australia James brings to the board expertise in strategic planning for smart cities and infrastructure, shaping Australian Government Policy. Ultimately, he works to influence policy makers to empower Australians to act locally by thinking globally.

• Email: dumitru.vasilescu@undp.org
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Policy Specialist/Innovation lead for UNDP Moldova; coordinating innovation work in three areas: public sector innovation, engagement with private sector for SDGs, and urban sustainable development. Leading experimentation work around sustainable cities, use of innovative approaches to promote more solar energy production.

• Email: Francois.sonnet@electricchain.org
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Bio

François graduated with a Masters in Finance (hons) from ICHEC Brussels Management School and is an expert in Solar Energy Business Development, having co-founded Belgium’s N°1 award-winning solar installer SunSwitch SA in 2007.

François currently works as a solar consultant on projects in developing nations, advising towards several solar fields. François also advises Solcrypto and any Affiliates to the SolarCoin Foundation on Business Development with the SolarCoin Digital Asset and developing Blockchain tools to initiate the Clean Energy Transition at a Global Scale.