Nano technology advances day by day… friends… it’s really amazing when we go through this article. It says that we can generate electricity at cheaper rate without using coal. In that case the non renewable resource coal can be preserved to some extent. Isn’t this amazing? Let us see how it works using the revolutionary Nano technology.

A new combination of Nano and solar technology has made it possible for solar electric generation to be cheaper than burning coal. Nanosolar, Inc. has developed a way to produce a type of ink that absorbs solar radiation and converts into electric current. Photovoltaic (PV) sheets are produced by a machine similar to a printing press, which rolls out the PV ink onto sheets approximately the width of aluminium foil. These PV sheets can be produced at a rate of hundreds of feet per minute.

Nanosolar cofounder and chief executive officer, R. Martin Roscheisen said that it’s 100 times thinner than existing solar panels, and we can deposit the semiconductors 100 times faster. It’s a combination that drives down costs dramatically.

Because of their light weight and flexibility, the PV sheets (dubbed Power Sheets) are much more versatile than current PV panels, which must be mounted on sturdy surfaces like roofs or the ground. In addition, because there is no silicon used in the production of the sheets, they cost only 30 cents per watt of power produced.

Traditional PV cells cost approximately $3 per watt, while burning coal costs about $1 per watt.


“This is the first time that we can actually drop the cost of solar electricity down to a level that would be competitive with grid electricity in most industrialized nations,” said Nanosolar co-founder Brian Sager.

Nanosolar is ramping up production of its Power Sheets at factories in San Jose, California, and Berlin, and expects to have them commercially available before the end of the year. The buzz around the Power Sheets is so strong that the company already has a three to five year backorder, and the company has raised more than $150 million from venture capitalists, including Google cofounders Larry Page and Sergey Brin.

“Solar panels have not been very popular to the American people because they’ve been too expensive. That’s what we’re changing now,” Roscheisen said.

Courtesy:howstuffworks

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Ravi teja ( MGIT – ECE 3rd year)

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