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Purpose: This paper aims to present a new master's programme for promoting energy access and energy efficiency in Southern Africa. Design/methodology/approach: A transdisciplinary approach called "participatory integrated assessment of energy systems" (PARTICIPIA) was used for the development of the curriculum. This approach is based on the two emerging fields of "multi-scale integrated assessment" and "science for governance", which bring innovative concepts and methods. Findings: The application of the PARTICIPIA methodology to three case studies reveals that the proposed transdisciplinary approach could support energy and development policies in the region. The implementation of the PARTICIPIA curriculum in three higher education institutions reveals its ability to respond to the needs of specific contexts and its connection with existing higher education programmes. Practical implications: Considering energy issues from a transdisciplinary approach in higher education is absolutely critical because such a holistic view cannot be achieved through engineering curricula. Deliberate and greater efforts should be made to integrate methods from "multi-scale integrated assessment" and "science for governance" in higher education curricula to train a new breed of modern-day energy planners in charge of coming up with solutions that are shared by all relevant stakeholders. Originality/value: This paper presents an innovative higher education curriculum in terms of the attention given to energy access and energy efficiency that affect the southern Africa region and the nature of the methodology adopted to face these issues.

A theoretical model is proposed in analyzing the limit to the human population the Earth can support in the future without detrimental effect on the environment. The model is applied to three various scenarios depicting the energy interaction between society and the ecosystem. These scenarios are the preindustrial scenario, where society is sustained by animal and human muscle power, the biofuel scenario, where human activity is powered by biofuel (ethanol and biogas), and the life-support system scenario which requires a high density energy input. For each scenario, limits to population size and food supply are discussed.