Solar design guide and how to get the best out of your solar installation using an illustration

Solar design guide and how to get the best out of your solar installation using an illustration:

 How many 300W solar panels will it take to charge 15 pieces of 12V 200AH batteries for 5 hours and how much amps charge controller is good for the system?

If you have several solar panels installed and not getting the best out of it in terms of efficiency, below addresses some of the design protocols that might be missing.

Based on data above, combined energy storage is 15x12Vx200Ah =36,000Wh.

Standard charge current ranges from 10% to 20%. 20% for optimal charge implies 7,200Watts. This implies it will take 7200watts of input to charge it full at 5hours. 8,640watts input charge translates to 24pcs of 300watts solar panels

Again, you need to confirm charging requirements for your battery spec. Lithium batteries accept fast charge but for lead acid need to abide by manufacturer’s spec.

Impact of equipment and configuration on overall efficiency of solar: To get the maximum output out of your installed solar capacity better MPPT with high VoC is adopted. Then connect your solar panels in series to a value near the VoC then parallel the strings.

Charge Controller size:

80Amps 96V MPPT controller will be a good fit.

Feel free to contact us for input/guide on solution that works.

 

Anthony O.C

Energy and critical power Specialist.

Compactpower.