Energy poverty affects 1.6 billion people around the world, most of them women and girls. Understanding women’s crucial role in family well-being and economic prosperity, Katherine Lucey founded Solar Sisters to recruit, train and mentor women to build sustainable businesses selling portable solar lamps, mobile phone chargers and clean cookstoves. The organization supports female entrepreneurs with sales and distribution of renewable energy equipment and, since its launch, has employed more than 1,000 women. Photo credit: Schwab Foundation for Social Entrepreneurship