Electricity might not be solved, but just providing lighting is much easier. It takes less than a watt to make enough light to study by more comfortably than f

Electricity might not be solved, but just providing lighting is much easier. It takes less than a watt to make enough light to study by more comfortably than firelight, and you only need it when it is neither daylight outside or time to sleep. Poor places also tend to have plenty of sun. I would think that you only need a 1W LED, maybe 12Wh LTO battery (It lasts 20 years), and a 10W solar panel per 2 or 3 people, if that, for the use case of not burning stuff just for light. The groups distributing things like that already seem convinced that's enough to really change their life.