Off-grid battery storage brings power to people

More than a billion people around the globe don't have access to electricity, according to official figures, and many of those are in sub-Saharan Africa.
Home solar-powered energy systems mean families who aren’t on an electric grid now have power.
Batteries store power by day, to use at night. These kind of home-energy packs, which leapfrog centralised distribution, are becoming popular in sub-Saharan Africa with several companies competing for customers.