South Africa’s disproportionate reliance on coal for electricity generation is poised to add further upward pressure on tariffs by exposing local businesses to carbon taxes that could make up over 35% of their electricity costs by 2034. This finding is contained in research conducted by Discovery Green in partnership with EY’s Africa Sustainability Tax division, which Discovery Green head Andre Nepgen says points to there being significant cost implications for those South African businesses subject to carbon tax.