Nancy Wimmer

Nancy Wimmer is director of the renewable energy research company, microSOLAR, and advisor to the World Council for Renewable Energy.  

She has served German industry as a systems analyst, lectured at the University of the Bundeswehr in Munich and worked with the German Government, the European Parliament, the World Bank and United Nations Foundation in support of microfinance and rural electrification in developing countries.  Her practical work began with Microfinance Institutions (MFI) and solar entrepreneurs in Bangladesh and has since led her to the rural parts of Egypt, El Salvador, India, Honduras, Nepal and Peru.  

Nancy is author of Green Energy for a Billion Poor – How Grameen Shakti Created a Winning Model for Social Business (2012), which describes the inner workings of a groundbreaking business model for rural electrification.  

Her recent book, The Marketmakers—Solar for the Hinterland of Bangladesh 2019) narrates the development of the world’s largest off-grid market for solar home systems as told from the perspectives of the people who made it happen: the World Bank as investor, the Infrastructure Development Company (IDCOL) as project manager, and the rural entrepreneurs as solar service providers.  In particular, readers will learn how the power of innovation to open up opportunities in an undeveloped market spawned a home-grown solar industry with suppliers, service companies and manufacturers.   This makes The Marketmakers unique. 

Nancy has studied in the USA and Europe and holds a Masters of Philosophy.   

You can email her at


Articles by Nancy Wimmer

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