Isolated small-scale renewable energy projects are a suitable option for providing access to electricity in rural areas. In such projects, establishing a suitable management model is a key issue for ensuring sustainability. The management models can be classified according to the ruling institution: government, municipality, private institution, microenterprise or cooperative. They may also differ with regard to sensitive features, such as the systems' ownership, level of users' participation, responsibility for the systems’ operation and maintenance, the users’ involvement in system installation processes and the administration of tariff payments. The existing literature lacks a comparative study highlighting the strengths and weaknesses of each kind of management model and their contribution to achieving technical, economic, social, organisational and environmental sustainability. To fill this gap, this study analyses and compares the impact of different management models through a number of case studies in Peru, Ecuador and Bolivia after 4 years of on-site work. Finally, general recommendations are given as results to strengthen all sustainability dimensions: among them, running comprehensive training programs to enhance local maintenance capabilities; reaching agreement with final electricity users to set a fair and affordable tariff rate and encouraging the involvement and self-organisation of the population to increase the sense of ownership. Such aspects are fulfilled more completely by management models based on microenterprises and cooperatives, due to their decisively higher community engagement, and should be stimulated by policy makers in the region.

孤立的小规模可再生能源项目是为农村地区提供电力供应的合适选择。在此类项目中，建立合适的管理模式是确保可持续性的关键问题。管理模式可以根据统治机构分类：政府、市政、私人机构、微型企业或合作社。它们还可能在敏感特征方面有所不同，例如系统的所有权、用户的参与程度、系统操作和维护的责任、用户对系统安装过程的参与以及资费支付的管理。现有文献缺乏比较研究来突出每种管理模式的优缺点及其对实现技术、经济、社会、组织和环境的可持续性。为了填补这一空白，本研究在 4 年的现场工作后，通过秘鲁、厄瓜多尔和玻利维亚的多个案例研究，分析和比较了不同管理模式的影响。最后，给出了一般性建议作为加强所有可持续性维度的结果：其中，开展综合培训计划以提高本地维护能力；与最终电力用户达成协议，制定公平和负担得起的电价，并鼓励人们参与和自我组织，以增加主人翁意识。这些方面通过基于微型企业和合作社的管理模式更完整地实现，因为它们具有决定性的更高社区参与度，并且应该受到该地区政策制定者的激励。