Solar PV has already begun to take off in East Africa, with companies such as M-Kopa and Juabar providing solar panels to hundreds of thousands of homes since the start of last year, while solar kiosks are springing up across the region to enable customers to charge their mobile phones. What is most impressive is that this capacity is being added without any financial incentives.
http://www.designindaba.com/articles/creative-work/selling-solar-keep-tanzania-connected