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
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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