Method to prolong the OSC lifetime-Update#1


Method to prolong the OSC lifetime and its economics

Author: David Judbarovski, principle inventor, retired engineer, Israel
judbarovski@gmail.com 
Short CV: https://www.linkedin.com/in/david-judbarovski-1390944a/
Last articles: http://judbarovski.blogspot.be
Archive since 2006 yr.: http://judbarovski.livejournal.com 
It is known, that the OSC-s (organic solar cells, polymer solar cells) degrades quite quickly (up to 2-3 years) at natural bright insolation and have quite low energy efficiency (up to 7-10%). It is known too, that the smaller OSC – panel, the thinner and cheaper in cube its cost, while the OSC made by roll-to-roll technologies can be 100-1000 cheaper than Si-PV, being now about USD 0.5 per watt, or USD 500.0/kW.

I can offer to shield the OSC by a thin cover to diminish twice the insolation and can suppose it can triply increase the OSC life time up to 7 years and increase its energy efficiency up to 10%, while 0.33 mm steel support would be enough for firmness of 1 m2 OSC.

For sunny regions, it can be about 1.1 USA cents per kWh electricity for Israel conditions, with 2000 kWh/m2 sun in a year on perpendicular area
 
Really:
For spring/autumn months taken here as averaged sun in a year, the sun fall is
2000 kWh/m2 * sin 82.5 * sin 45 = 1400 kWh/m2.
For 7 % efficiency it can produce 100 kWh per m2 annually
The OSC support can be 0.33 mm * 7.8 = 2.35 kg Fe/m2 * USD 0.6/kg = USD 2, plus OSC (vs. Si-PV with 300-500 times more expensive) can be ($ 500/400) = USD 1.25/m2), it is in sum USD 3.25 = 325 cents with the shield being negligible + 20% others, it is 390 cents
So 390 cents/100 kWh = 3.9 cent/kWh. If being spread on 7 years by 50% shield cover, it gives 1.1 cents/kWh electricity. QED!!!

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