system one of the biggest in africa what's more building materials have been locally sourced as much as possible. even when she's making her cut of the ada money is already surviving the benefits water cost thirty percent less than it used to that's quite a savings when any has been living in garden city in the north of the king of capital nairobi since late last year it's an expensive area of town here a new development is designed to protect the environment and save its residents money this solar energy comes from the roof of a neighboring might historic. one that we have a nice bright beat it's all the water in the apartment and when we have an obviously is when the heater element kicks in and we get hot water that way but