"Lack of access to electricity is a main factor for 1.3 billion globally in their struggle to escape poverty. This Thesis stems from the conviction that an approach based on the concept of Inclusive Business Models is indispensible to achieving sustainable development, considering the limited success of top-down efforts by national governments, multilateral development organizations and non-governmental organizations so far. Extended work experience in Central America determined the focus on the region. The core objective was to determine more specifically the viability of Inclusive Business Models for the provision of off-grid Photovoltaic (PV) systems to low-income households, defined as the Base of the Pyramid (BOP), in rural regions of Central America. To do this, definitions for BOP and Inclusive Business were established as a basis for a market assessment. Subsequently, an energetic assessment, categorizing segments of the BOP, followed by a technical assessment, presenting respective solutions were detailed. Finally, PV was shown to be the most suitable renewable energy technology for the Central American BOP market, and its social, ecological and economic impact was highlighted, as well as three case studies presented. The results showed for-profit models to be commercially viable, achieving a triple-bottom-line return as defined by Inclusive Business, and PV systems to be the most beneficial, reliable and easily affordable solution for off-grid electricity access for the Central American BOP. Based on these results, it was concluded that provision of PV to the BOP by a private sector based on Inclusive Business is an indispensable step towards achieving each one of the three goals set out by the UN Initiative Sustainable Energy for All, and towards achieving the Millennium Development Goals of an end to poverty."