Harriet Nabukwasi is saving up. So far, shes saved up enough to pay surveyors 100,000 Uganda shillings (21) to continue the process of registering my land, she says. Now, I even pay school fees for my children. I am happy now. Nabukwasi is able to save for her goal because of her work with Solar Sister, a not-for-profit social enterprise that has created a network of female entrepreneurs. The organisation recruits women (and some men) in the most impoverished and remote areas of Uganda to sell affordable solar lamps, mobile phone chargers and fuel-efficient stoves. As well as earning money, Nabukwasi now lights her house with a solar lamp, cooks on energy saving stoves, charges her mobile phone from home, and her children no longer have to rush to finish their homework before dusk. Solar Sister has been a game changer, she says. At least 877 Solar Sister entrepreneurs now work in Uganda, more than three-quarters of whom are female. The organisation has attracted more than 2,000 entrepreneurs in Uganda, Tanzania and Nigeria since 2010. In Uganda, only 20% of the population has access to electricity while more than 50% of rural households rely on open kerosene lamps. But such lanterns are fire hazards, emit toxic fumes and strain family budgets. An entrepreneur needs initial capital of at least 200,000 shillings (42) to become a Solar Sister. We want [the entrepreneurs] to take this as their business, says [Solar Sister Uganda country manager Clare] Achola.