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Hi there,
I have a basic question to ask before I buy a SmartSolar MPPT controller for my solar panel.
I have a 124.5W solar panel
Specs here:
Voc: 24.48V
Isc: 6.32A
Vmp: 20.88V
Imp: 5.97A
Ptol: +/- 3%
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Power
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124,5 W
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Pmax - Maximum achievable power
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124,5 W
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Voc - Voltage open circuit
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24,48 V
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Isc - Ampere short circuit
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6,32 A
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Vmp - Voltage maximum power
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20,88 V
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Imp - Ampere maximum power
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5,97 A
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I was was wondering if I can use a 100/15 solar controller rather than a smaller 75/10 as I will maybe add another 124.5W panel in the future.
I know a 75/10 would be proficient but I was wondering if the 100/15 will still work ok with just a 124.5W panel.
(The nominal PV power at 12v of the 100/15 controller is 220W and nominal PV power at 12v 75/10 controller is 145W.)
Does the nominal PV power have to be close to the power of the solar panel for it to work correctly.
Apologies I am new to this and would really appreciate before I buy the 100/15 controller just to make sure it will work ok and isn’t to powerful for just the 124.5W panel.
It says in the SmartSolar manual:
“PV array too small”
“If the PV array power rating is less than the solar charger nominal power rating, the solar charger cannot output more power than the connected solar array can provide”
Many thanks
Linda
