There are a billion people in the world who use less electricity in a year than an average American refrigerator.  There is another billion who have no electricity at all.  Robert Bryce is a journalist, film-maker, energy analyst.  He is the author of six books and the host of the podcast Power Hungry.  His latest book, A Question of Power: Electricity and he Wealth of Nations has become the documentary Juice: How Electricity Explains the World.  He has documented, first-hand, how the lack of electricity creates poverty, and how women and girls suffer the most from this global inequality.