DRUMDERG, SCOTLAND: A wind-farm engineer reaches for the lightning card on the aileron of a wind turbine. This small electromagnetic strip measures the lightning striking the turbine and is checked biannually. Although lightning poses no risk to the operation of the turbine it is a health and safety risk for maintenance teams. Drumderg wind farm can generate enough renewable electricity to power around 25,540 homes per year. The wind farm is situated on Drumderg hill, on the site of a World War II artillery firing range. Prior to construction, detailed studies and non-intrusive surveys had to be undertaken to ensure that the site was safe and clear of unexploded shells. 

Photo by Toby Smith/Getty Images Reportage. See more from Scottish Renewables.