Autonomous systems based on the use of renewable energy (RE) have proven suitable for providing energy and
sanitation services to isolated communities. However, most of these projects fail due to managerial weaknesses.
Designing an appropriate management model is a key issue for sustainability and it is especially complex when
includes different RE technologies. This paper is aimed at developing a novel management model for RE projects
to provide energy and sanitation services with any kind of technology. Moreover, a new method to evaluate the
sustainability is proposed regarding technical, economic, social/ethical, environmental and institutional/
organisational dimensions. The case study of Pucara (Peru) is presented, in which a RE project with six different
technologies was implemented and the integral community management model was designed in 2011. The project
sustainability was evaluated in 2013 and results showed that the management model has succeeded to
strengthen sustainability, especially in the institutional/organisational aspects.