Distributing solar-powered lights and phone chargers where they are needed the most, while giving low-income women the opportunity to earn supplementary income—such is the vision behind Solar Sister, a social enterprise with a presence in Tanzania, Uganda and Nigeria. With 1,500 women involved in its network, the organization has been growing steadily since it launched five years ago, although it still relies on philanthropic donations to operate. Read about a project that has been making a difference on the ground, substituting clean power for kerosene and improving the lives of families despite obvious challenges.