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solarman

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  1. Client has 20 x 360w (7200w) panels on the roof (roof, facing north). 5 strings of 4 2 x MPII in parallel SmartSolar MPPT 250|100. ESS system not feeding in to grid. Set to about 70% state of charge for self consumption. Why isn't the PV covering all the day loads? A looks normal in this image, but the B section. The client is using high consumer (iron) during this time. Shouldn't the array handle this consumption? B in image 2. red square in image 1
  2. This is after charging for 10 hours since use, pure backup system, no solar. so I assume float charging then.
  3. I have changed my setting accordingly. My system batteries measures 52.5V with a multimeter. So all seems to be in order?
  4. Thank you sir! I appreciate you helping me out here. Do you have a link or previous post explaining settings 26 & 27 in more details?
  5. Hi, I installed this backup system. I need some feedback on the installation to ensure everything is OK. I used: KODAK Solar Off-Grid Inverter King with UPS 5kW 48V (Axpert) 4 x 240Ah omnipower batteries. 50mm2 Battery Cable 80A Fuse on + battery cable Inverter Settings (Axpert): Program 1 : Utility first (default) Program 2 : 20A Program 5 : User Program 11 : 20A Program 26 : 56.4V Program 27 : 54.8V Program 29 : 44.60V
  6. Hi, I installed this backup system. I need some feedback on the installation to ensure everything is OK. I used: KODAK Solar Off-Grid Inverter King with UPS 5kW 48V (Axpert) 4 x 240Ah omnipower batteries. 50mm2 Battery Cable 80A Fuse on + battery cable Inverter Settings (Axpert): Program 1 : Utility first (default) Program 2 : 20A Program 5 : User Program 11 : 20A Program 26 : 56.4V Program 27 : 56.0V Program 29 : 45V
  7. Thanks @plonkster Yes they currently run off a generator, so that will be used if the weather is not ideal.
  8. I understand (think I do) the calculations for a home off-grid. I want to find out if you put a off-grid system on an remote office where eskom is not an option that runs from 8am to 5pm every day (laptops and printer etc.). How big the battery bank should be. The average daily consumption is 10kwh. Home vs Office example. (bulk of consumption during daytime vs evening) For example, If a home consumes 10kwh a day (24 hour period) which is mostly in the evening (10% day and 90% evening). A battery bank with 200Ah Lead-Acid batteries 12V and a 50% DoD works out to 8,33 batteries needed
  9. If the earth was flat the edge would be the biggest tourist destination
  10. @plonkster... I am enlightened. Thanks for the detailed explanation. Much appreciated.
  11. Thanks Coulomb. I have a 3kva and 5kva and the 3kva doesn't have thae RS232 port so I thought there might be a slight chance.
  12. On most inverters it seems that a 5kva is equal to a 4KW. I've seen this on Aperts, Victrons etc. I have now found an Axpert and and MLT inverter where it says the 4KW is equal to 4 KVA (see attached). I understand it has to do with power factor? Can someone please explain how this works in layman's terms?
  13. Question regarding upgrade of firmware.. can I use the USB cable? Or do I need to use the Serial cable that fits into the RS232 port with a serial to USB adaptor ? *Edits.. just for clarity
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