With all the talk about leapfrogging the grid, it is surprising how little the possible implications have filtered through to the debate about tariffs. The Africa Investment Exchange: Power and Renewables conference in London on 15-16 November saw a lively discussion about potential grid ‘disruptors’, in particular low-cost, small-scale renewable power sold directly to consumers. The technology has huge potential to provide clean power to households and industry at a fraction of the cost of the grid.