Who We Are
Yansa Community Interest Company
Josep Puig
Co-Director of Yansa Community Interest Company
Josep Puig is a pioneer in the field of renewable energy, and particularly of community-oriented renewables. He was one of the co-founders of Ecotecnia, which started as a small cooperative and grew to become one of the 10 largest wind turbine manufacturers in the world. Josep was the President of the European Network on Cities and Energy and served on the City Council of Barcelona, during which time he initiated Barcelona’s first renewable energy program. Currently, Josep is spearheading a municipally-based wind energy cooperative in Catalonia; working as an environmental consultant for both Ecoserveis and Ecofys; teaching as an Associate Professor at the Autonomous University of Barcelona; and serving on the boards of numerous national and international renewable energy organizations, including Eurosolar.
Sergio Oceransky
Co-Director of Yansa Community Interest Company
Born in Spain, Sergio Oceransky studied Development Economics in Germany and Human Geography in the UK. After finishing his studies, Sergio spent a decade working mainly with peasant and indigenous organizations in South Asia and Latin America. Sergio then spent a number of years working as the coordinator of the World Wind Energy Institute (WWEI) in Denmark , a network-based organization aimed at democratizing access to wind energy know-how and technology. Sergio is a Ashoka-Lemelson Fellow and is the co-founder of the Yansa Group.
Jazmín Sánchez Arceo
Engineer at Yansa CIC in Mexico
Jazmín Sánchez Arceo is a Physical Engineer specializing in energy engineering. For her Masters Degree Jazmín developed a multi-criteria methodology to minimize and mitigate the environmental impact of wind farms in her home state of Yucatán, Mexico. Jazmín is currently working with a diverse network of community, NGO, and institutional contacts to develop community-based wind energy projects in the Yucatán. Jazmín is also working on a study of the capacities of Mexican industry to supply critical components of Yansa’s wind turbines, with a view towards transferring our technology and manufacturing operations to Mexico.
Jesús Serrano García
Engineer at Yansa CIC in Mexico
Jesús Serrano García is a Mechanical Engineer specializing in wind energy technology. Jesús was trained in Germany to certify wind farm business plans and to certify the technical measures required to reduce and mitigate turbulence in wind farms. Jesús has experience in the installation and monitoring of wind data gathering systems.
Yansa Foundation Mexico
Bettina Velázquez Cruz
Board of Directors of Yansa Foundation Mexico
Bettina Cruz Velázquez is an Indigenous organizer from Juchitán (Oaxaca, Mexico). She is an Agricultural Engineer; has a Masters Degree on Regional Rural Development; and, with the support of Ford Foundation, is finishing her PhD in Territorial Planning. Bettina has been active since her youth in defense of indigenous peoples’ rights and in their struggle to gain back collective control over their territories. She is a lead organizer in the grassroots process to confront the transnational companies that are in the process of building large-scale wind farms on the basis of dubious and illegal contracts.
Juan Rodriguez Cabrera
Board of Directors of Yansa Foundation Mexico
Juan Rodriguez Cabrera studied Histology, Human Patology and Electronic Microscopy in Mexico City. In 1976 he returned to his home City of Ixtepec (Oaxaca, Mexico) to work as a farmer and to be an active part of social movements in defense of communal land and water rights. Juan is currently the Treasurer of the State Committee for Animal Husbandry, an organization formed by farmers and cooperatives from the entire state of Oaxaca. Juan is the director of the Forestry and Wildlife Commission, which is the body that administers communal property. He is also co-coordinates territorial planning for theCommunity of Ixtepec, which includes planning for the Ixtepec’s community wind project that they are working on in cooperation with Yansa.
Sergio Oceransky
Board of Directors of Yansa Foundation Mexico
Bio above.
Yansa Foundation (US)
Brooke Lehman
Board Directors of Yansa Foundation, Secretary
Brooke Lehman holds a Masters of Arts in Social Ecology (an interdisciplinary field focused on the social and ecological transformation of society) from the Institute for Social Ecology, where she has since taught for the past decade. A longtime political organizer and consultant, Brooke specializes in designing democratic organizational structures and in facilitating broad-based democratic decision making processes, a skill set that she is eager to bring to Yansa’s community partnerships. In joining the Yansa team Brooke leaves her position as worker / owner of Bluestockings Bookstore in NYC.
Chelsea Mozen
Board Directors of Yansa Foundation, Treasurer
Chelsea Mozen holds a Masters of Arts in Economics from the New School for Social Research in New York. Following many years of working as a grassroots organizer in the US and Eastern Europe, Chelsea served as the Director of Programs and Administration at Just Foreign Policy, a US-based non-profit organization that promotes diplomacy and international cooperation. Chelsea has also served as the Assistant Director of the Schwartz Center for Economic Policy Analysis in New York, and has appeared in numerous publications such as Time Magazine, the BBC, CNN, The Guardian, Die Zeit, Die Welt, and L’illustre Magazine
Sergio Oceransky
Board Directors of Yansa Foundation, President
Bio above.


Ashoka Fellowships
Community Interest Companies