Parabolic trough
technology used in concentrated solar power stations
A parabolic trough is similar to a solar panel tower, because it has parabolic mirrors that collect large amounts of heat which is reflected on water-filled pipes . The water is heated until it turns into steam, rotating a turbine using a large steam piston.
The rotating turbine produces electricity, which is then transferred by transformer, before being converted DC to AC and transferred by current lines.