Solar PV Monitoring/Automation Thread

Welcome to the nightly "Auto SOC" club!

Now your next frustration is figuring out what levels to set the SOC target to based off the Met Eireann forecast. I found for me that the best way to chomp it into blocks of 10%. E.g. if my estimated yield for tomorrow is

Under 5Kwhr then set to 90% (I always like to give it a little buffer to take what it can from the sun early morning)

5kwhr then set to 80%

6Kwh then set to 70%

7Kwh then set to 60%

etc

Just to give an update this has been working perfect. I setup an automation to enable and disable grid charging on Saturday and everything is working perfectly. I just had to increase the charge limit slightly on the inverter to ensure the SOC by the end of the window was 100%. My discharge limit is set to 12%. Thanks again for all the help assisting me getting this setup.

This is more of a generic HA question

I am currently running it on a laptop using VMware Workstation Pro using bridged network and able to connect from the laptop to the HA console on port 8123. Would like to move it to a Pi but can't get hold of one at the moment.

I am able to ping HA from another laptop on the local network but not able to connect to the UI on port 8123.

Am I missing something I cannot figure it out.

I'm having issues reading certain solis inverter registers over rs485.

The imported/exported today/yesterday registers are reading zero all of a sudden.

These were reading fine up until a few days ago. Is it a CT issue?

Hot water cylinder is heating fine when exporting to grid.

Weekend tinkering

Over on solis Facebook I managed to find an email to request more frequent app updates. But no reply despite a chaser.

I have the new dongle so can’t use the solarman thing. 5 minute updates is utterly trash.

any ideas what I can do?

Curious if anyone here has a SunSynk inverter and managed to run automations/remote modbus on it?

Seems to be using solarman for their sticks so maybe it's similar enough to the Solis.

I have found a few solutions online:

https://github.com/kellerza/sunsynk make your own rs485 cable and I like the fact you can run this on your Home Assistant server

https://solar-assistant.io/help/deye/configuration - which seems to be a lot simpler to get up and going (but more expensive) and allows easy integration with Home Assistant too and you can even connect directly to the batteries to get a lot more data from them https://solar-assistant.io/help/battery/dyness

Probably best to use their cables but I assume customs will shaft us big time with anything coming from South Africa.

Only thing I don't like is that it requires another rpi device dedicated to just this.

Having this issue the past number of weeks and unable to get to find a solution. I’ve posted on Solis FB group but to no avail.

My imported/exported data has been reading zero the past number of weeks. Everting else is reading ok. Daily/monthly data totalising fine. I am reading data directly from the inverter over rs485. I’ve plugged in the WiFi dongle to take the below image. Any thoughts to what might be the issue?

Yes, I understand that. I thought it maybe an issue with the polling the registers so I plugged in the dongle into the inverter for a few days but still no data registers on the app

There is a acrel acr10r energy monitor connected to the rs485 port on the inverter. Is this what the inverter looks at to get the import/export totals?

You want to set up an utility meter for your day/night tariffs, that one automatically zeroes itself based on day/month/year etc

daily_energy:
  source: sensor.shellyem_5e26f6_channel_1_energy
  cycle: daily
  tariffs:
    - peak
    - offpeak
monthly_energy:
  source: sensor.shellyem_5e26f6_channel_1_energy
  cycle: monthly
  tariffs:
    - peak
    - offpeak

The automation to switch tariff:

- id: '1652831843092'
  alias: Energy - Switch tariff
  description: ''
  trigger:
  - platform: state
    entity_id: binary_sensor.peak_rate
  condition: []
  action:
  - service: select.select_option
    target:
      entity_id:
      - select.daily_energy
      - select.monthly_energy
      - select.yearly_energy
    data:
      option: '{{ ''peak'' if is_state(''binary_sensor.peak_rate'', ''on'') else ''offpeak''
        }}'

The template stuff that sorts out DST:

- binary_sensor:
  - name: "Is DST"
    state: "{{ now().timetuple().tm_isdst == 1 }}"
  - name: "Peak Rate"
    icon: "mdi:power-plug"
    state: >
      {% if states('binary_sensor.is_dst')|bool(1) %}
        {% set t_on = today_at('08:15') %}
        {% set t_off = today_at('23:15') %}        
      {% else %}
        {% set t_on = today_at('09:15') %}
        {% set t_off = today_at('00:15') + timedelta(hours=24) %}
      {% endif %}
      {% set t_now = now() %}
      {{ t_on <= t_now <= t_off }}

Chane the time to suit your d/n meter mine is 15 minutes off.

Yes as you can see above it only resets monthly and that's exactly what I'm doing, giving it the daily one.

Monthly keeps increasing until the new month, same with yearly.

Hi Connesha,

I had my solar panels installed last week, and I've been on a steep learning curve with Home Assistant to incorporate my Solis Hybrid inverter data using various resources from Github etc. I would love to use your code above to automate the charging my batteries overnight in my cheap rate electricity (9:30pm to 2:30am).

I have got to the stage where I have run your code with my sensors in a template and I am happy that it is outputting the correct number of amps to charge at.

For the last couple of days I have run the template and then manually used a slider input number to set the amps

I then have the following automation which runs when I press the button on my dashboard:-

I know this is probably basic but I'm afraid I don't know how to put it together. I would like an automation that would set the charge amps every night just before my cheap rate starts. I can do the trigger but then I don't know where to put the template bit to set the charge amps. Can I put it all in an automation or do I need to put some of it in a script? Would you be able to advise me as yaml, scripts etc are new to me?

raspberry pi 3+ or 4, home assistant.