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The document details an 18-month pilot by Golden Arrow Bus Services (GABS) using two BYD electric buses in Cape Town. The trial demonstrated that electric buses can handle steep local topography, such as Hospital Bend, and achieve significant energy cost savings of nearly 69% compared to diesel alternatives. To mitigate the carbon intensity of the South African grid, GABS has installed rooftop solar PV at six depots, reaching 1.7MWp by March 2023, though it estimates a need for 80 to 100MW of renewable capacity to fully electrify its 1,100-bus fleet. The study concludes that while electric buses have higher upfront costs, fuel savings allow them to pay for themselves over a 15 to 20 year lifespan.