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2.19 M long by 30.48 cm wide... rated to produce only 17 W

Or c. 11W/m². That is less than a tenth of Si-based solar cells and the best CIS solar cells. Way to go, it seems - but I read that this solution has much potential, the theoretical limit is beyond that of the 30-33% of Si-based solar cells.

not a very good deal when you can get a wind turbine that's a little over a mtr in diameter that generates 400 W for $0.70 per installed watt.

And if you conpare actual energy produced (for wind and solar, the number give in watts is maximum power!), the solar laminate is even worse in comparison. (Taking Germany as standard, average yearly power of a photovoltaic installation is one ninth of maximum power, for a large wind generator it is one fourth, though for small wind less.)

*Lunatic*, n.
One whose delusions are out of fashion.

by DoDo on Tue Feb 21st, 2006 at 03:21:40 AM EST
[ Parent ]
Hm. After following ManfromMiddletown's link, and on to this pdf, I find rated power is not 17W but 136W. 17W must be the average power, while 400W for the one-metre wind turbine can only be the rated power. While the size is given as 5486 mm x 394 mm - hence 62.9 W/m².

*Lunatic*, n.
One whose delusions are out of fashion.
by DoDo on Tue Feb 21st, 2006 at 03:37:34 AM EST
[ Parent ]
Sorry, that was the first product. The second product, a "Solar Shingle Sell Sheet" (another English word learned...) is the 2195 mm x 305 mm one, truly rated at a mere 17W. And I can't compute: that would be 25.4 W/m², not 11...

Couldn't yet figure out what the significant difference between the two models is. Anyway - assuming 100m² awailable roof surface, that would be about 6290W with the first product and 2540W with the second, giving average powers of 700W and 360W in Germany, the second five-eight times more expensive than four-five 400W wind turbines.

*Lunatic*, n.
One whose delusions are out of fashion.

by DoDo on Tue Feb 21st, 2006 at 04:47:28 AM EST
[ Parent ]

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