https://creativenergie.co.uk/BEE.html
The Challenge :
Solar panels and biogas digesters provide essential sources of light, electricity and cooking fuel in Sub-Saharan Africa. Yet the poorest African families remain unable to afford them, excluding them from accessing vital clean energy sources. At the same time some of their neighbours have more energy than they need: greater solar power is generated than consumed during the day; biogas systems continually produce methane gas and the excess is wasted.