Johannesburg could turn around the lossmaking performance of City Power, end load-shedding and improve the green credentials of its manufacturing industry by purchasing 80% of its wholesale electricity from large-scale, citizen-owned solar and wind plants at a cost below that purchased from Eskom currently. This is the view of Clyde Mallinson, an energy specialist who has conducted extensive modelling on a future domestic electricity supply industry based exclusively on solar, wind and storage.