It may come as a surprise to know that half of the global population uses biomass (wood, agricultural wastes and dung) and coal for cooking.  For Sub-Saharan Africa where electrification rates…

Daniel Kammen |

For Africa’s poorest families, lighting is often the most expensive item in their budget, typically accounting for 10–15 percent of total household income. The energy poor in Africa spend about US…

Daniel Kammen |