July 7, 20233 yr Hi all, I would like to find out about adding different wattage panels to an existing system if that is possible and what the correct way to connect. I will be getting an installer to do the job, i would just like to get some feedback and advice. Current system: 1x 8.8kw Sunsynk Inverter/1x 5.32kw Sunsynk Battery/8x460w JA Solar panels. Due to my roof space i have 4x West facing and 4 North facing on a lower roof. As per the photos they are split into 4 on MPPT1 and 4 on MPPT 2. Due to stock i can get 4x550w JA Solar panels and i would like to add those on my upper North facing roof after moving my solar geyser panel. Is this possible to mix the panels and how does one wire it to the inverter that they dont pull each other down depending on the time of day? Im aware the 8kw has 4 solar plug in ports. I take i would need to add a separate circuit breaker to the additional string? Im based in Cape Town. Any knowledge and advice would be greatly appreciated. Edited July 7, 20233 yr by trip7 adding photos
July 7, 20233 yr 1 hour ago, trip7 said: Hi all, I would like to find out about adding different wattage panels to an existing system if that is possible and what the correct way to connect. I will be getting an installer to do the job, i would just like to get some feedback and advice. Current system: 1x 8.8kw Sunsynk Inverter/1x 5.32kw Sunsynk Battery/8x460w JA Solar panels. Due to my roof space i have 4x West facing and 4 North facing on a lower roof. As per the photos they are split into 4 on MPPT1 and 4 on MPPT 2. Due to stock i can get 4x550w JA Solar panels and i would like to add those on my upper North facing roof after moving my solar geyser panel. Is this possible to mix the panels and how does one wire it to the inverter that they dont pull each other down depending on the time of day? Im aware the 8kw has 4 solar plug in ports. I take i would need to add a separate circuit breaker to the additional string? Im based in Cape Town. Any knowledge and advice would be greatly appreciated. Although 4 MPPT inputs the inverter only has 2 x MPPTs. Thus the strings that are in parallel should be the same voltage and quantity. Over the weekend we were given the brief that voltages of panels working together should not vary more than 5% in voltage or 15% in output.
July 7, 20233 yr Some discussion over on mybb as well. https://mybroadband.co.za/forum/threads/mix-and-match-solar-panels.1245235/#post-31470185 Consensus seems to be your amps will be dragged down to the lower panel's if connected in series. Edited July 8, 20233 yr by Zombie
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