In recent years, considerable research has been carried out on renewable energy sources, and scientists and engineers have tried to design cheap but efficient devices to harvest solar power. Solar radiation has low power density. For this reason, we must use concentrating devices to increase the amount of solar radiation reaching the receiver to be able to obtain temperatures higher than 100 °C. However, mirrors’ shape is of key importance to the efficiency of these Systems. Plane mirrors are the simplest and more economical devices, whereas parabolic mirrors provide a more efficient solution.