social entrepreneur francis nderitu, and recent winner of the earthshot prize for his work on sustainabilityhe started with refrigeration. 40% of the fish caught here is being lost, much of it all of the points of the distribution chain have been supplied with solar powered freezers. the refrigeration system is a hybrid solar powered freezer, so the freezer can work perfectly well off grid, you only need solar, a controller and battery, then the freezer runs perfectly well. we have a good number of people who are off—grid, so now this technology has been incorporated to help such a kind of people to access cooling as a service. is in when it finally arrives. so, after a relatively long journey from the lake, the fish end up here, at the keep it cool processing plant, located on the outskirts of the kenyan capital, nairobi. so, for health and safety purposes, i'm going to go and kit up, and then i'm going to go in and have a look. it's in this plant that another key plank of keep it cool�*s they clean up the fish to make sure they get the best possible price at market. after receiving, we sta