New Solar Power Design Inspired by Telescope Could Produce Twice the Energy

Researchers have designed a new solar power module that uses a curved mirror to focus sunlight onto a 5-inch glass ball that then spreads the light evenly across a solar panel, leading to twice the power output of traditional solar panels when combined with high-efficiency solar cells. The design was inspired by telescope technology and the high-efficiency solar cells used by space agencies.

The module also tracks the sun and rotates with it to increase its efficiency. The whole module is mounted on a steel 10-ft by 10-ft rotating frame that moves with the sun.

“The tracker is fully automated,” Blake Coughenour, a graduate student in the UA’s College of Optical Sciences, explained. “The system wakes itself up in the morning and turns to the East. It knows where the sun will rise even while it’s still below the horizon. It tracks the sun’s path during the day all the way to sunset, then parks itself for the night.”

One of the most interesting parts of the system is the mirror. The researchers came up with a dish-shaped mirror design that works very well for concentrating sunlight specifically for photovoltaics, as opposed to a solar thermal system.

 

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