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  1. R

    If I have 6 solar panels that are all the same, is it better to connect them in series-parallel or parallel-series?

    Series-Parallel: Parallel-Series: Both setups should have the same Voc, Isc, Vmp, and Imp at the ends that connect to the SCC, right? If so, what are the advantages and disadvantages of connecting them in each of these configurations? How do the electrical properties of the system change...
  2. R

    If you have 4 12V batteries, each of the same Ah, what are the pros and cons of connecting them in a 1S4P 12V, 2S2P 24V, and 4S1P 48V configuration?

    This is assuming it's part of a system where you never directly connect to the battery voltage itself (i.e. you have appropriately voltage-rated SCC, AC-DC charger, inverter, etc.). The system would have the same Wh regardless of the configuration, and the current going to and coming from each...
  3. R

    By how much would you recommend overpanelling? 5%? 10%? 20%? 50%?

    Is your answer different for grid-tie systems or off-grid systems? Does it depend on the total wattage of the system? (e.g. 10% for a 200W system vs 20% for a 2kW system, or vice-versa)
  4. R

    Efficient direct conversion of PV DC to controlled DC?

    Is there some way to efficiently convert solar power directly to controlled DC without an intermediate SCC and battery? If I just use a boost or buck converter, I would get the controlled DC I want, but I won't be able to set the power point. Could I have a setup where I have a solar panel...
  5. R

    What is the smallest possible battery for any given SCC and battery voltage?

    For example, could I use a Victron SmartSolar 75/10 with a tiny 24V 400mAh battery made out of 8 14430 LiFePO4 cells in series? Or the same with a 100/20-48V with a tiny 48V 400mAh battery made out of 16 14430 LiFePO4 cells in series? The idea would be to use this in a system where as much as...
  6. R

    Portable/Foldable Solar Panels for iForway HS1000?

    I recently bought this portable power station, and I would like to find a portable/foldable solar panel or set of solar panels that will provide the max power this device is capable of taking. The relevant part of the manual is the line "Anderson(Solar) 12-28.5V/Max 7A ( Max 200W )" and that...
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