Executive Committee

Stefan Gsänger

Executive Committee Member

Stefan Gsänger is the Secretary General of the World Wind Energy Association. Under his direction, WWEA has become the voice of the wind sector worldwide, with 550 members (representing indirectly 50’000 members) in 100 countries.

Tetsunari Iida

Executive Committee Member

Tetsunari Iida is the Executive Director of the Institute for Sustainable Energy Policies. He has been one of the top opinion leaders in Japan promoting a “new generation of energy policies” with a special focus on renewable energy. Tetsunari Iida is appointed as a governmental committee member for “Energy Policy” and “Renewable Energy Policy” both for the Minister of Economy, Industry and Trade, as well as a member of the National Environmental Council for the Minister of Environment. Also, he has been working as a close advisor for a parliamentarian in the energy policy field.

Lasse Bruun

Executive Committee Member

Lasse is a campaign specialist in climate and energy, sustainable agriculture and animal rights, with twenty years experience in mobilization, communication, advocacy and movement building. Working across sectors and continents, his work includes being a Global Project Leader at Greenpeace and an adviser in the Danish Parliament and currently works at Climate Action Network (CAN) as Head of Global Campaigns. Within these roles, he has led high-level international dialogues, campaigns and projects around the world. At CAN, he coordinates campaigning efforts on behalf of more than 1200 NGOs in 120 countries. He also leads a global energy taskforce which includes environmental, faith and development NGOs – as well as labor unions, megacities administrators, foundations and Fortune 500 businesses. Lasse is a postgrad in Rhetoric and Linguistics from the University of Copenhagen.

David Renné

Executive Committee Member

Dr. Renné has been President of the International Solar Energy Society since 2010. He continues to serve as an Associate Editor of the Solar Energy Journal in the field of solar resource assessment.

From 1991 until his retirement in 2012 Dr. Renné managed the solar resource assessment activities at the U.S. National Renewable Energy Laboratory (NREL). In 2012 he became a Senior Consultant to Clean Power Research, a small U.S. Company that develops resource assessment and analytical software tools to support large-scale grid connected solar energy systems. He has also served as a consultant to the World Bank’s Energy Sector Management Assistance Program’s (ESMAP)’s Resource Mapping Project. He has also consulted for organizations such as the Asian Development Bank, IRENA, and Battelle Columbus Laboratories, through his Consultancy, Dave Renné Renewables.

Maryke van Staden

Executive Committee Member

Building on a career of more than 25 years, Maryke connects the dots between national security, renewable energy and climate action, working with all levels of government. She spearheads ICLEI’s groundbreaking work on local climate action and multi-level governance, helping cities, towns and regions with Measuring, Reporting and Verifying (MRV), and how this connects to the Nationally Determined Contributions (NDCs). As Director of the Bonn Center for Local Climate Action and Reporting (carbonn Center), based in Bonn at the ICLEI World Secretariat, Maryke works with a team of multi-disciplinary experts around the globe offering technical assistance to local and regional governments on climate action, reporting, analyzing data, and defining advocacy messaging for the UNFCCC. Maryke led the Scientific Projects Unit of the International Solar Energy Society before joining ICLEI Europe in 2006 and the ICLEI World Secretariat in 2013.With degrees in Political Science and International Politics, she links science to policy and practice.

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