Solar PV Hints, Tips & Troubleshooting

Hi,

If you are using the solarman addon to talk directly to the wifi sticks on solis ( older version 2 stick ). The following automation should give you an idea

<code>

alias: Set Battery Discharge (Pause Zappi)
description: Discharge Excess Battery to Grid
trigger:

• platform: time
  at: "22:15:00"
  condition: []
  action:
• device_id: fd2123e941axxxxxxxxx - Zappi
  domain: select
  entity_id: 2e935353fxxxxxxxxxxx - Charge Mode
  type: select_option
  option: Stopped
• choose:
  • conditions:
    • condition: numeric_state
      entity_id: sensor.bms_soc
      above: 90
      sequence:
    • service: solarman.write_holding_register
      data:
      register: 43142
      value: 550
    • service: solarman.write_multiple_holding_registers
      data:
      register: 43143
      values:
      - 2
      - 0
      - 6
      - 0
      - 22
      - 30
      - 2
      - 0
  • conditions:
    • condition: numeric_state
      entity_id: sensor.bms_soc
      above: 70
      sequence:
    • service: solarman.write_holding_register
      data:
      register: 43142
      value: 550
    • service: solarman.write_multiple_holding_registers
      data:
      register: 43143
      values:
      - 2
      - 0
      - 6
      - 0
      - 23
      - 15
      - 2
      - 0
  • conditions:
    • condition: numeric_state
      entity_id: sensor.bms_soc
      above: 60
      below: 70
      sequence:
    • service: solarman.write_holding_register
      data:
      register: 43142
      value: 550
    • service: solarman.write_multiple_holding_registers
      data:
      register: 43143
      values:
      - 2
      - 0
      - 6
      - 0
      - 23
      - 30
      - 2
      - 0
  • conditions:
    • condition: numeric_state
      entity_id: sensor.bms_soc
      above: 40
      below: 60
      sequence:
    • service: solarman.write_holding_register
      data:
      register: 43142
      value: 550
    • service: solarman.write_multiple_holding_registers
      data:
      register: 43143
      values:
      - 2
      - 0
      - 6
      - 0
      - 1
      - 0
      - 2
      - 0
  • conditions: []
    sequence:
    • service: solarman.write_holding_register
      data:
      register: 43142
      value: 0
    • service: solarman.write_multiple_holding_registers
      data:
      register: 43143
      values:
      - 2
      - 0
      - 6
      - 0
      - 0
      - 0
      - 0
      - 0
• delay:
  hours: 3
  minutes: 45
  seconds: 0
  milliseconds: 0
• device_id: fd2123e941a96xxxxxxxxxxxxxxx - Zappi
  domain: select
  entity_id: 2e935353f794xxxxxxxxxxxxxxx - Charge Mode
  type: select_option
  option: Eco+
  mode: single

</code>

I think your setup is working fine. Looking at my similar-sized setup albeit across 3 aspects where I generated 16.1 kWh on the 24th, in Dublin City.

I suspect you’re getting your kW, kWh and kWp’s a bit mixed up, coupled with the clipping that your oversized system is doing by design. The following two videos are great and will really help you better understand what to expect from your system.

I'm controlling SolarEdge via HA too. Works very well.

Is there anybody on here with mostly west orientated panels and generating good electric. I can get 12 west facing panels and 6 south on my roof. 1 Installer said my west would receive light early in day too(noon ish) as west roof higher then south facing bit. Just wondering is it worth it, we do use most electric in evening as of now but that may not always be the case. In winter west would have v little generated i would think.

Cheers man, you are a fountain of knowledge. Ground mounting is an option for all south facing but its handier and cheaper to roof mount as my garage does not have power yet. Have you south panels aswell and do they do much better? I am on tou and 5-7 my most expensive time so may make sense to do 12 west 6 south. How many panels generate that 3.4MWh?

Would the roofs on the left(south facing) and on right/straight ahead in pic(west facing) in first attachment impact negatively on each other, shading etc? Installer wanted to put 12 on west facing roof in attachment 2 and 6 on south in attachment 1.

I was thinking putting 6 on both roofs in attachment 1 and remaining 6 on nearside west roof in attachment 2. Thinking that further over roof slots on west facing in attachment 2 will be last to get sun. Not sure if that makes sense.

Does it make sense that far side of main west roof would be last to get sun so I would be better put 6on small west roof above sliding door and 6 on nearside of main west roof rather then 12 on main west roof?

Solis cloud app acting a bit funny for anyone?

Got a strange one going on…..

Recently installed a Solis S5-EH1P(3-6)K-L 5kw.

System seems to be performing as expected however, when decently generating, e.g. above 3kw, there seems to be a click or a sudden tick noise that happens every now and then. Edit (noticed it does this when its on battery also, e.g. night time 3kw load.)

It appears to happen more frequently when im generating above 5kw, every 5-10 minutes.

Its coming from inside the invertor. Any ideas what this could be?