Electricity is scarce in Uganda. According to CNN (January 30, 2015), only around 10 million of the 38 million population can either afford or access the grid. Till recently, the only options for cooking indoors involved using wood or charcoal, both of which caused respiratory problems and required constant fuel replenishment. An innovative start-up by a Kampala-based sister and brother is changing that. Their Eco-stove uses volcanic rock and solar power for cooking and the stored energy capacity allows the unit to power radios and charge phones. The volcanic rock – widely available in the region – generally lasts several years before needing replacement. Better indoor air quality and a steep reduction in deforestation make this invention a win-win for the country and its people.