This study aims to evaluate the diffusion process of a solar-powered refrigerator system, by implementing a sustainable business model as an approach of assessing key features to facilitate the process. The aspiration of this study is to develop a business perspective that can be utilized by companies when aiming to diffuse sustainable enhancing innovations in developing countries with the aim of improving entrepreneurship.  The conclusion of this study is based on the alignment of a theoretical framework centered on a sustainable business model and the theory for diffusion of innovation, alongside empirical findings obtained during a case study in Linga Linga, Mozambique. Primary data was acquired through active observations and semi-structured interviews of both female fish entrepreneurs and two organizations with ties to Sweden, operating in Linga Linga.  Empirical findings reveled limited availability of new products in Linga Linga, obstructing the diffusion of innovations. Businesses struggles to diffuse innovations in developing countries because of insufficient knowledge of culture differences and the basic needs of the end user. Sustainable development is highlighted as crucial when operating in the Western word but stated as challenging to implement to the same extent in the developing world. The fulfillment of basic needs, rather than operating sustainable and the unfamiliarity with sustainable development as a concept, is found as the reason for the challenge of implementing sustainable development for individuals afflicted by poverty.  The alignment of the theoretical framework and the empirical findings in the discussion chapter underscores the benefits of implementing a sustainable business model. Furthermore, the discussion emphasizes the importance of extending the model with knowledge as an additional key feature to comprehensively understand the end users and their basic need in the developing world.   This study concludes that utilizing a sustainable business model to assess key features is crucial for facilitating diffusion of innovations, with a particular focus on understanding end user´s basic needs. The study emphasizes the significance of circular economy as a key feature in ensuring durable and reliable products and highlights the importance of comprehensive value chain assessments. Empirical finding concluded that providing solar-powered refrigerator system for the female fish entrepreneurs in Linga Linga could potentially expand their business opportunities, ensuring an increased disposable income, and reduce workload.