Abstract
A new type of static solar concentrator is proposed to match the features of the town. The concentrator consists of vertical plate solar cells and white-transparent transformable bottom plate, which is operated with external power. The bottom is turned to be a diffuse reflection white surface when the cell generates electric power, and turned to be a light transmissible transparent surface when it is at rest. The light collection of this concentrator was analyzed by using the multiple internal total reflection model and the ray tracing simulation. For the same ratio of the area of the solar cells to that of the collector surface, the collection efficiency for the proposed concentrator is about half of that of the conventional concentrator for flat plate cell, and nearly equal to that of the concentrator for the embedded spherical silicon solar cells.
