Solar PV Hints, Tips & Troubleshooting

munsterfan2

https://www.boards.ie/discussion/comment/122362508#Comment_122362508

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>

conor_mc

In the Solis app, go into your plant > three-dots at top right > modify info > tariff management.

conor_mc

https://www.boards.ie/discussion/comment/122421197#Comment_122421197

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.

https://youtu.be/IzBHs4878BY?si=vuSyEDdImiZg7FwT

https://youtu.be/5y2dJ8S6zDU?si=cUUXn0yvjNi5uQ6a

bilasy

both video were very enlightening thank you so much

Borax2709

Couple of questions for the real pros on here. Hopefully related/in the right place.

1 - If I get a hybrid inverter installed now - how easy is it to get a battery done later? I've gotten a v good quote on Panels/Inverter install but the company is looking for MAD money for a battery (same battery is 1.1k on solarb**s.ie and they are looking for 3k more for battery install). Is this in ANY way DIY-able? Or if it is not - would a RECI even do it as a standalone job? If someone told me that it was a €300 job for someone to get a battery added [ on top of battery cost ] that would swing the decision - but if it's €1200 and nobody will "touch another installer's work" then the opposite is true I think!?

2 - Are there any inverters / battery combinations I should stay away from if I do want the monitoring (local!!) as described above via solarman etc? I am well equipped with HomeAssistant at home, and I'd be looking to add monitoring in there [ not cloud based if possible! ]. Are there any combinations I should steer clear of? Quotes have come in for Sofar Invertor, Solis Invertor. And then Dyness battery is what I think is most likely (caveat above). Ideally I'd be able to do force discharge to take advantage of night rates etc.

championc

There's even a thread on here for a DIY battery build.

Controllable with HA would be a Sofar or Sunsynk / Deye

Jonathan

https://www.boards.ie/discussion/comment/122458457#Comment_122458457

Or any inverter with Modbus, which is just about every inverter on the market.

conor_mc

Are there any settings/precautions to take when heading off on holidays for a couple of weeks? Obviously knock off any overnight charging, anything else?

Jonathan

https://www.boards.ie/discussion/comment/122459951#Comment_122459951

Not really, no. Turn off your Eddi via the app if you have one.

championc

https://www.boards.ie/discussion/comment/122459951#Comment_122459951

ABSOLUTELY Don't do that. Buy at cheap night rate, and have as much export as possible every day