nokuthula: load shedding is driving us crazy.re trying to grow, but this is holding us back a lot. sometimes i have things in the oven when they shut off the electricity, and i can't finish baking them. then they all have to be thrown out. reporter: she's angry at the government. 2.5 hours without electricity means getting her scones to market that much later. and that cuts into her earnings. the whole country is suffering as a result. for the past 15 years, south africa's state-owned electricity provider has had to interrupt supply to certain areas to prevent the power grid from collapsing. however, this winter has been especially hard, and it's affecting all sections of the population. janice scheckter is an entrepreneur who also runs a guesthouse in one of johannesburg's wealthy suburbs. her life is organized around the outages. janice: so, we have a mobile app that shows per suburb where we're going to have load shedding. that we're going to have stage one from 7:00 a.m. to 4:00 p.m. and everyone on the group is going berserk