As a boy, Sam Mamia, a Maasai from Kajiado county in southern Kenya, used to herd his father’s livestock on the hills around his house.
Now 34, he still works within sight of where he roamed as a child. “My home is there and my school was there,” he says, pointing to nearby fields where cows and goats are grazing. But the fields are now overshadowed by a 60-strong army of hulking white, gently humming wind turbines, each taller than a Boeing 747 is long.
As an engineer with a decade of experience at General Electric, Mamia is helping to run the 100-megawatt Kipeto wind farm, the second-largest in the country, built at a cost of $300mn.