The 'Sun Trac' photovoltaic concentrator array. This device is an array of single-crystal photovoltaic cells. The cells are relatively efficient,but are very expensive. The Sun Trac uses fresnel lenses to concentrate the Sun's light onto a series of smaller (thus cheaper) cells. In this way the whole area of the collector may be utilised,without the cost penalty of very large silicon cell sizes. A computer and a 'Sun sensor' are used to ensure that the Sun Trac is pointing directly toward the Sun at all tims during the day. Sun Trac is an experimental device; many such collectors would be used to provide electrical power in remote places | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Takahara, Taheshi |
Bildgröße: | 3552 px × 5231 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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