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[en] Despite South Africa being the leading producer and distributor of electricity on the African continent, the country has encountered some challenges in the past eleven years with regards to the supply of uninterrupted electricity. Between February and March 2019, South Africa experienced one of the worst, unprecedented power crisis since 2008, with rotational load-shedding reaching up to stage 4 to ease about 4000 MW from the national grid. Stage 4 load shedding involves intermittent rotational power cuts, three times per day for two hours at a time, or twice a day for four hours at a time. The history and challenges related to the energy crisis in South Africa and its associated impacts as observed over the past eleven years are well documented. These challenges are generic and are likely to continue unless notable alternative energy sources which are environmentally friendly, such as hydroelectricity and nuclear energy (nuclear power generation), are fully explored. Effects of paleoclimatic changes on the Zambezi River Basin (ZRB) and implications to the Cahora Bassa hydroelectricity generation is presented in this paper, based on preliminary field investigations. Additionally, a brief overview of the nuclear power generation and other renewable new-build power generation programmes, as outlined in the draft Integrated Resource Plan (IRP) of 2018 are provided. Although the planned programmes are likely to ease pressure on the continuously growing energy demand in South Africa, consideration should be given to the effects of climatic changes so that effective mitigation measures can be put in place.