An energy access assessment conducted by Practical Action in 2018 as part of the Renewable Energy for Refugees project established that most households and small enterprises in Kigeme, Gihembe and Nyabiheke refugee camps in Rwanda had limited or no access to electricity. It also identified both demand in the camps for modern energy services and a willingness and ability to pay. To address the lack of access to electricity, two solar home system companies operating in Rwanda were supported by the project to access the camps and supply systems to refugees and the host community via market-based delivery models. This paper applies the diffusion of innovations theory as a framework to investigate the sales of solar home systems in the camps. It is the first paper to present data in this area and it assesses both the viability of market-based delivery of solar home systems in refugee camps and the suitability of using diffusion of innovations theory in these contexts. The results indicate that solar home systems can provide an advantage to households compared to existing energy solutions and are, in most cases, compatible with refugees' basic energy needs and expectations. However, the cost of systems remains a barrier and without subsidy, further reductions in costs or adaptations to payment models, solar home systems are unlikely to provide large proportions of households and small enterprises in the camps with access to energy. This seriously impacts the possibility of achieving Sustainable Development Goal 7 and for the United Nations High Commissioner for Refugees to achieve the objectives it set out in its Clean Energy Challenge policy.

作为难民可再生能源项目的一部分，由 Practical Action 于 2018 年进行的能源获取评估表明，卢旺达 Kigeme、Gihembe 和 Nyabiheke 难民营的大多数家庭和小型企业无法获得电力，或无法获得电力。它还确定了营地对现代能源服务的需求以及支付意愿和能力。为了解决电力供应不足的问题，该项目支持在卢旺达运营的两家太阳能家庭系统公司通过基于市场的交付模式进入难民营和向难民和收容社区提供供应系统。本文应用创新扩散理论作为框架来调查营地太阳能家庭系统的销售情况。这是第一篇提供该领域数据的论文，它评估了难民营中基于市场的太阳能家庭系统交付的可行性以及在这些情况下使用创新扩散理论的适用性。结果表明，与现有能源解决方案相比，太阳能家庭系统可以为家庭提供优势，并且在大多数情况下，符合难民的基本能源需求和期望。然而，系统成本仍然是一个障碍，如果没有补贴、进一步降低成本或适应支付模式，太阳能家庭系统不太可能为营地中的大部分家庭和小型企业提供能源。