Project Overview
The electricity produced by each group of wind turbines would feed through underground cables into a substation building, housing high voltage switchgear and large transformers. A high voltage line running the length of the site would connect the nine substations. 51 % of this high voltage line would be carried on steel pylons, 27 m (88 ft) high, with the remainder of the link routed underground. A total of 134 pylons would be required to support the overhead sections of the route. The whole route could not be buried for technical reasons. A scale drawing of the wind turbine and transmission pylons proposed on Lewis is shown in the Turbine section of this Project Overview. There would be a control building located just off the Barvas Road north of Loch Roisnavat. To monitor the performance of the wind farm, each wind turbine group would have a 90 m (300 ft) wind monitoring mast.