Solar Concentrator Achieves 72% Power Production Efficiency

In producing power through photovoltaic cells, the surface area of the cells is a very significant factor. Researchers have been trying to trim down the surface area of these cells and make them more efficient in terms of size.

SolenSphere is a venture which was launched by two students of Renewable Energy Engineering at Oregon Tech, Corbyn Jahn and Adam Burwell. The company has been able to reduce the surface area needed by photovoltaic cells by a factor of 1000! It claims that it has created a new solar concentrator which can capture 72% of the solar energy falling on it. (more…)

By Ubergizmo. Related articles: Grammateller: Solar powered ATMS in India, Solar Powered Car concept looks amazing,

Spherical glass lens concentrates sunlight by up to 10,000 times, boosts solar cell efficiency

Spherical glass lens concentrates sunlight by up to 10,000 times, boosts solar cell efficiency

Eking out more power from solar cells is an ongoing challenge for scientists, and now architect André Broessel has developed a spherical glass energy generator that’s said to improve efficiency by 35 percent. Acting as a lens, the rig’s large water-filled orb concentrates diffused daylight or moonlight onto a solar cell with the help of optical tracking to harvest electricity. In certain configurations, the apparatus can be used for solar thermal energy generation and even water heating. In addition to the oversized globe, Broessel has cooked up a mobile version of the contraption for domestic use and an array of much smaller ball lenses with dual-axis tracking that offers 40 percent efficiency. These devices aren’t the first venture into concentrated photovoltaics, but they are likely among the most visually impressive. If the Barcelona-based architect’s vision of the future comes true, you’ll be seeing these marbles incorporated into buildings and serving as standalone units. Hit the source links below for the picture spread of prototypes and renders.

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Spherical glass lens concentrates sunlight by up to 10,000 times, boosts solar cell efficiency originally appeared on Engadget on Tue, 28 Aug 2012 09:22:00 EDT. Please see our terms for use of feeds.

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