Less than half of Bangladeshis have access to electricity, which is essential for economic productivity and the kind of night-time illumination that allows kids to study after dark. (Hey, not everyone is as determined as Abe Lincoln.)
So the World Bank is spending to get solar-powered light systems installed where the (notoriously unreliable) electrical power grid of Bangladesh can't reach. So far 870,000 citizens have benefitted from the program, and the World Bank is putting $130 million more toward expanding it.
Even so, it's a drop in the bucket: the country of 150 million people aims to provide 10 percent of its electricity through renewables by 2020, and is also considering nuclear power.
Solar power lights up Bangladesh rural areas, Reuters.