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The expected electrification of Sub-Sahara Africa's urban paratransit with an electric minibus taxi (eMBT) has received increased attention in energy research and expenditure analyses. In this paper, several long-distance routes between the Western Cape and the Eastern Cape in South Africa are assessed for electrification. To mitigate the long charging time of eMBTs, we propose a battery swapping approach in which a trailer acts as a mobile battery bank to the vehicle (eMBT+T); which is to be charged from a solar charging station to reduce emissions. Compared to the current MBTs, the proposed model results in only a 6% trip time increase. Crucially, emissions are reduced by 75%, where a 20% increase is seen when using an eMBT. The results show that a trailer battery enables viable long-distance electrical paratransit, and with the integration of solar power charging, this transition can also be sustainable. [ABSTRACT FROM AUTHOR]