People have used Wind power for millenia. Early applications included pumping water and grinding grain. Recent decades have seen a rapid increase in the installation of large windmills used to generate electricity. For obvious reasons, these windmills are usually sited in windy locations, often in large groups.
Photo: Mike Habeck.
Wind energy is considered renewable, but at this scale is not without costs. Modern windmills involve considerable upfront investment in materials, infrastructure, and energy. They are often hundreds of feet tall, and some consider them a blight on the viewscape. They also exact a toll on migrating birds.