Hi
I am planning to make a 3KW system and need to determine which kind of cells I should use and where to buy them.
specs for 5x5 from Everbright solar:
Specifications:
Open circuit voltage Voc: 0.604-0.623 V
Close circuit current Isc: 4.881-5.300 A
Maximum power voltage Vmax: 0.473-0.528 V
Maximum power current Imax: 4.429-4.924 A
Power: 2.1-2.6 watts
Efficiency: 14%-17.5%
Dimension: 125 mm X 125 mm, or 5X5 In.
Thickness: 0.2mm, or 200 um
And specs for 6x6:
Cell Specifications: Rated power : ~4 Wp
Open circuit voltage: 0.610v -0.621v
Short circuit current: 8.18 amp - 8.78 amp
Operating voltage: 0.488 v - 0.50 v
Operating current: 7.51 amp - 8.14 amp
Weight: Just above 6 grams, or 0.2 oz.
Am I wrong to think that if I make two panels with the same amount of solar cells the 6x6 panel would give almost twice(1.7) as much as 5x5 panel?
Is it really necessary to make 18v panels? I am going to charge 6x2v 1200A batteries with it. Isn't it so that Chargers and Inverters that accept from 10v are not uncommon?
Are there other places that sell cells except Everbright?
If I want to buy a thousand cells is it possible to buy from the manufacturer?
Thanks
Metacom
I am planning to make a 3KW system and need to determine which kind of cells I should use and where to buy them.
specs for 5x5 from Everbright solar:
Specifications:
Open circuit voltage Voc: 0.604-0.623 V
Close circuit current Isc: 4.881-5.300 A
Maximum power voltage Vmax: 0.473-0.528 V
Maximum power current Imax: 4.429-4.924 A
Power: 2.1-2.6 watts
Efficiency: 14%-17.5%
Dimension: 125 mm X 125 mm, or 5X5 In.
Thickness: 0.2mm, or 200 um
And specs for 6x6:
Cell Specifications: Rated power : ~4 Wp
Open circuit voltage: 0.610v -0.621v
Short circuit current: 8.18 amp - 8.78 amp
Operating voltage: 0.488 v - 0.50 v
Operating current: 7.51 amp - 8.14 amp
Weight: Just above 6 grams, or 0.2 oz.
Am I wrong to think that if I make two panels with the same amount of solar cells the 6x6 panel would give almost twice(1.7) as much as 5x5 panel?
Is it really necessary to make 18v panels? I am going to charge 6x2v 1200A batteries with it. Isn't it so that Chargers and Inverters that accept from 10v are not uncommon?
Are there other places that sell cells except Everbright?
If I want to buy a thousand cells is it possible to buy from the manufacturer?
Thanks
Metacom
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