Solarati

A electrotechnology student has devised an ECG machine that runs on solar energy. This especially lends itself to use in developing countries or troubled areas.

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A researcher has proposed a microgrid-based power plant with its own local power sources and independent control as a more dependable, efficient, and cost effective system than traditional telecom power systems. Microgrids would also be a quick and inexpensive way to include renewable energy sources for both existing and developing systems.

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Imagine windows that not only provide a clear view and illuminate rooms, but also use sunlight to efficiently help power the building they are part of. Engineers report a new approach to harnessing the sun’s energy that could allow just that. The work, reported in Science, involves the creation of a novel solar concentrator.

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A new way to help technologists develop efficient and inexpensive plastic electronic devices, such as plastic solar cells and a new type of transistor has been developed. As the probe bobs up and down the force required to keep it oscillating at a steady rate changes measurably, which tells the scientists about the nature of the scanned surface. By using different vibration frequencies, it is possible obtain nanoscale measurements on materials.

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Scientists have achieved a record light conversion efficiency of 8.2 percent in solvent-free dye-sensitized solar cells. This breakthrough in efficiency without the use of volatile organic solvents will make it possible to pursue large scale, outdoor practical application of lightweight, inexpensive, flexible dye-sensitized solar films that are stable over long periods of light and heat exposure.

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