Solar concentrator for use with a bi-facial cell.

摘要

An apparatus is disclosed including: a trough shaped concentrator extending along a longitudinal axis, tapering in a direction transverse the longitudinal axis from a relatively wide top to a relatively narrow bottom, and surrounding an interior region. The trough shaped concentrator includes a light admitting surface located at the wide top; and a trough shaped light reflecting surface which concentrates light admitted through the light admitting surface from a source to a concentration region within the interior region. In some embodiments, the apparatus also includes a bifacial photovoltaic cell located in the concentration region to receive a first portion of concentrated light on a first face and to receive a second portion of concentrated light at the second face.