• 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: Hunziker@wbcsd.org
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Bio

Roland Hunziker is the Director for Sustainable Buildings and Cities at the WBCSD. In this role, Roland is in charge of the coordination of the WBCSD platform for early strategic engagement between cities and companies representing different sectors and expertise. Current flagship projects are Energy Efficiency in Buildings, Zero Emissions Cities as well as Sustainable Mobility. Roland holds an MBA with distinction from INSEAD (France) and a Master degree on history, political science and economics from the University of Zurich.

• Email: Garin@wbcsd.org
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Bio

Delphine Garin is the manager of the Energy Efficiency in Buildings (EEB) project at the WBCSD. The EEB project is a business-led, cross-sector project uniting local stakeholders to take action. It brings together public and private sectors at city level to understand key market barriers and drive actions to increase investments in energy efficiency in buildings. Delphine holds a Master degree on management from UCL (London) and a Bachelor degree on international law from the University of Grenoble.

• Email: Eddy.VanEenoo@sgs.com
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Bio

Eddy Van Eenoo is SGS facility manager, in charge of the maintenance and facility supervision of 36 locations; he is project leader in sustainable projects: reduction of electricity- and water consumption projects, especially in SGS labs. He is also SGS Global Sustainability Project manager for energy efficiency in building. In that capacity, Eddy introduces sustainability projects in SGS premises worldwide and follows up and advises green building projects, especially for labs, worldwide. Eddy is also SGS safety & environmental officer in Belgium. Eddy has a background in chemical engineering. SGS is a multinational company headquartered in Geneva, Switzerland which provides inspection, verification, testing and certification services.