Concentrating photovoltaic solar panel having one or more concentrator .
FIG. 16A shows a reflective ring concentrator 500, including a plurality of steeply tilted reflective rings 548, a body 542, and a yoke 510. Concentrator 500 is shown upside down so that the rings 548 can be more easily seen. FIG. 16B shows the reflective rings 548 portion of concentrator 500 with the remaining portions removed.