Off-grid communities such as those in sub-Saharan Africa can pay thousands of times as much as the rest of us for their energy. Designer Jim Reeves has developed a simple, low-cost gear-train and generator that uses a descending weight to power a perpetual light source. Children can do their homework and study, families and friends can eat together and interact after dark adding new dimensions and possibilities to their lives.
Directed by: Liam Saint-Pierre
Produced by Banyak for Guardian Films – theguardian.com/environment/video/2016/jun/21/the-weight-of-light-how-gravity-is-illuminating-sub-saharan-africa-video