They rotate between four different areas at the solar facility, to give the grass a chance to regenerate and to ensure the ground isn’t overworked. “The sheep keep the grass short by grazing on it and walking over it, and the solar panels provide the sheep with shade, which reduces heat stress at the height of summer,” explained Loran Shallenberger, project manager for renewable energy at Silicon Ranch. “Regenerative grazing using sheep can have some important environmental benefits, as well as a second, stable source of income for our farming partners.” Unlike traditional mowers, the sheep can access hard-to-reach spots, which means the grass is cared for properly. And while the 50 sheep are grazing in Chattanooga, they are also fertilising the ground. Efficient and economical.