In a hillside slum with breathtaking views of Rio de Janeiro's famed Copacabana beach, a rooftop covered in photovoltaic panels glitters in the tropical sun – one of many in Brazil's first favela solar energy project.
The solar panels on the roof of a community organisation in the Babilonia favela take one thing the impoverished neighborhood has in abundance – sunshine – and use it to lower electricity bills while expanding renewable power sources.
