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http://en.wikipedia.org/wiki/Nanosolar is planning to sell them at 1 $ / watt
May I add following:
Friday March 28, 2008
1366 Technologies: Aiming for $1 Per Watt of Solar Power
The company’s main goal is to manufacture solar cells that cost $1 per watt by the year 2012. That’s equal to 10 cents per kilowatt-hour, which is about half of what they cost today. The two technologies at work in 1366 Technologies’s PV cells are:
1. The “grooved” ribbon - An alternative wiring method that uses small mirrors to deflect light that’s otherwise lost back to the silicon material, making energy production more efficient by 3 percent.
2. Packaging low cost silicon wafers for cell production.
Achieving $1 per watt for solar cells would put solar energy in direct competition with coal-produced electricity. As 1366 Technologies just raised $12 million for the project, let’s hope we’ll see results in time.
It is interesting to note that the World in working (doing R & D ) to produce Cheap Renewable Energy Solution, but this Beloved Nation of our is Just Not Interested in Doing anything BUT POLITICS … In the neighboring country (Ex: INDIA and soon IRAN) Solar Panels and Wind Turbines are beings manufactures and Exported to the World. And we have NOT yet even an Renewable Energy Promotion Authority or Development Board for promoting the awareness and guidance of the Public.
In the above noted Country the Bank’s and DFI (with the support of Gov.) provide soft Loan exclusively for the development of Renewable Energy Systems (Solar, Wind or Bio-Gas and small Hydro Power projects) because they understand that changes at Micro Level would strengthen the National Growth and Economy.
I understand it is boring or out of the way stuff (politics / policy talk) … Sorry Friends …