Solis inverter settings

AntonP · 03-07-2025 09:57PM

With a 20kw battery system you can charge from 30% to 90% (12 units) in 3 hours at 80A with a Solis 5 or 6Kw

antodeco · 22-07-2025 06:11PM

Got my 7.2kw solar installed today, with a 10kw battery and think I've figured out my settings if someone wants to sense check for me.

In Storage Energy settings I have:

Storage mode select - Feed in priority

Charging from grid - Allow

Time of use - Chargetime1 : on 02:00 - 06:00 ch current 50A SOC 90%

Discharge time1:On 23:45 - 01:45 soc 20%

This setup is to ensure I don't charge my battery from solar. Only charge during the energia night rate. I have it to sell whatever is left on the battery between 23:45 and 2am.

In the menu I then have export power setting - backflow power - 5000w which is to only use solar to charge the battery for generation a out 5kw (I believe).

Have I done the settings right?

Ha Long Bay · 22-07-2025 06:16PM

https://www.boards.ie/discussion/comment/123660582#Comment_123660582

It needs to be set to time of use not feed in priority to charge or discharge.

antodeco · 22-07-2025 06:27PM

https://www.boards.ie/discussion/comment/123660598#Comment_123660598

Yes so I have that setting in feed in priority settings to the time

Ha Long Bay · 22-07-2025 06:32PM

https://www.boards.ie/discussion/comment/123660582#Comment_123660582

Sorry did not see the line about not wanting to charge the battery from solar.

Not sure how to do that but I am sure someone else here will know.

graememk · 22-07-2025 06:43PM

Feed in priority means that the battery will discharge to house when needed, and only charge when there is more than 5kW being generated

antodeco · 23-07-2025 08:59PM

Does anyone is there a widget for Android that you can have on your home screen the shows the power flow from the solis app? Id rather not have to open it each time a graph would be nice!

soram · 29-07-2025 11:12AM

The Solis feed appears to be down again for me. Nothing in HA nor on the Solis portal since 7am though it says I am online.

dessertspoon · 29-07-2025 08:12PM

Hoping someone with more knowledge can help configure my Solis S5 with battery attached.

I want to:

Charge battery during night rate hours

Export excess solar always

Discharge battery as needed when solar insufficient

If battery has charge at 10pm, dump it all to grid as an export

Is this possible?

Thanks

antodeco · 29-07-2025 08:51PM

See if this gives what you need:

Advanced settings - storage energy set - storage mode select - feed in priority - on - time of use > and then you set your charging time

dessertspoon · 29-07-2025 09:19PM

https://www.boards.ie/discussion/comment/123681659#Comment_123681659

Thank you.

How about setting the discharge times? How does the inverter know to only discharge what is needed by the house up to 10pm and then discharge full welly then?

graememk · 29-07-2025 09:27PM

https://www.boards.ie/discussion/comment/123681730#Comment_123681730

The discharge times are only used to force discharge,

I am not sure if you can force discharge to a set % only a set time and power (totally open to correction on this though, It may have changed in a update)

dessertspoon · 29-07-2025 09:38PM

https://www.boards.ie/discussion/comment/123681752#Comment_123681752

Thanks, so if I set it with Feed in priority and the following slots;

Charge 23:00 to 08:00

Discharge 22:00 to 23:00 at say 25amps (5.3kwh batt)

That should result in the battery being used to power house 08:00 to 22:00 as needed and then dump to the grid starting at 22:00?

...Ghost... · 29-07-2025 10:14PM

https://www.boards.ie/discussion/comment/123681784#Comment_123681784

Only set a charge time for the number of hours it takes to get a full charge. If you have a 15kWh battery, it should be full in about 3 hours. I would set a charge time from 1am to 5am knowing that I won't be using any power except to charge the battery. From 5am, the house can then draw from the battery and the solar can help when the sun rises. Then set discharge from 11pm to 1am to dump the excess.

Your suggested settings would have the battery in charge mode until 8am. Boiling the kettle at 7am would draw from the grid rather than the battery. Anything using power before 8am would draw room the grid.

dessertspoon · 29-07-2025 10:21PM

https://www.boards.ie/discussion/comment/123681889#Comment_123681889

I understand your points, however this is my strategy:

I get paid 20c per kwh of export. So it is better financially to prohibit the battery 7am to 8am (which is import night rates) and discharge it at 20c later on at 10pm if still some charge remaining.

...Ghost... · 29-07-2025 10:28PM

https://www.boards.ie/discussion/comment/123681905#Comment_123681905

I had incorrectly assumed your day rate was higher than export rate. Carry on.

dessertspoon · 29-07-2025 10:35PM

https://www.boards.ie/discussion/comment/123681919#Comment_123681919

My day rate is higher than export rate (25c vs 20c) but my night rate is the lowest at 13.5c. So by forcing the battery into only charge mode up until 8am (end of night rate) I can then use all of that stored 13.5c (minus losses) from 8am instead of 25c day rate and if any is left at 22:00 dump it all for 20c per kwh. Then start again at zero. In my mind this is the most financially beneficial use of a battery given my rates.

Hoping someone can clarify if leaving 08:00 to 22:00 as an undefined slot will allow the battery to discharge as house demands. And setting discharge slot 22:00 will force the battery to dump all charge then.

...Ghost... · 29-07-2025 11:09PM

https://www.boards.ie/discussion/comment/123681940#Comment_123681940

Your strategy is correct then.

Yes, leaving the 8-22 slot idle with priority export seected will allow the battery to supplement house supply when solar does not suffice, up to a combined max of 5kW, assuming that is the max output of your inverter.

Furthermore , if your solar exdeeded 5kW the excess above 5kW goes into th battery if there is space. Its a wonderful sight to see 😁

dessertspoon · 30-07-2025 06:57AM

https://www.boards.ie/discussion/comment/123681991#Comment_123681991

Excellent! Thanks for your help, really appreciate it.

dessertspoon · 01-08-2025 05:34PM

https://www.boards.ie/discussion/comment/123681991#Comment_123681991

Hey,

So you were right in that my battery is supporting load when pv output is not sufficient, in a period that is not configured by any time slots.

However, below is the Solis official documentation online.

Id be interested to hear what other Solis users are experiencing.

Feed In Priority

When this mode is turned on, the system will prioritize selling power to the grid. This means that the battery will not charge or discharge unless Time Charging is turned on and configured properly.

...Ghost... · 01-08-2025 06:29PM

https://www.boards.ie/discussion/comment/123690147#Comment_123690147

You might just be misunderstanding that bit and going by the Solis documentation, I would have concluded the same. Feed in Priority setting doesn't mean the battery won't charge. What happens is the PV will export up to 5kW at a time. If you are generating 7kW and there is no load from the house, the other 2kW will be pushed into the battery unless the battery is having a discharge cycle. So, if the battery is in idle/normal mode, it will take excess PV above the inverter max export allowance and will supplement the house load when PV is not sufficient.

Just to be clear, the house always takes priority over export. Example:

You have a 5kW Solis Hybrid.

Your battery is at 60% SOC.

Your house load is 1kW because you are using the PC and are browsing Boards.ie

Your panels are generating 10kW.

This will happen…

The house will take the first 1kW passing through the inverter.

The next 4kW will export, because the max that the inverter will push through your CU is 5kW AC.

3kW will go to the battery, keeping it as DC.

The remaining 2kW will be clipped.

dessertspoon · 01-08-2025 06:50PM

https://www.boards.ie/discussion/comment/123690262#Comment_123690262

Thanks a mill, great explanation.

In my defence: the Solis documentation is poor/wrong.

...Ghost... · 01-08-2025 06:55PM

https://www.boards.ie/discussion/comment/123690320#Comment_123690320

In my defence: the Solis documentation is poor/wrong.

It's pure shíte. Thankfully the inverters are alright 🤣

globetrotter823 · 17-09-2025 10:50AM

https://www.boards.ie/discussion/comment/122798119#Comment_122798119

Hi @Duine_Eigin I have a similar situation with solis inverter on Pinergy plan. The grid charging of batteries drop to about 4.6kw after about an hour and stays at this for the remainder of the EV window. Have you found any solution to this? Does adding an external fan help? Looking at my charts it appears the charging is slowed once the core temperatture reaches 75C.

buzz11 · 23-09-2025 11:45AM

I've set the charge & discharge limit to 50A but when I look on the soliscloud its reaching 89A (battery current)

Why is it exceeding the limit?

graememk · 23-09-2025 12:07PM

https://www.boards.ie/discussion/comment/123843241#Comment_123843241

Them are for timed charge and dis charge sessions

micks_address · 03-11-2025 10:52AM

hi folks, im potentially looking at a Solis inverter. 5k S6 EH1P5K-L-PLUS. Whats the simplest way to get this integrated with home assistant? Looking for local control or battery charge/discharge times etc. Is it best to hardwire ethernet or use wifi? i see lots of talk about data loggers and local control as well so if anyone has any tips be great.

Thanks,

Mick

Midlakelands · 03-11-2025 04:26PM

Hi,

Recently upgraded to the same inverter but I had the advantage of holding onto my old wifi dongle so I could use one of the direct modbus repos that support it https://github.com/davidrapan/ha-solarman . The only issue I have is that the newer firmware has changed the registry values for charging/discharging the battery timings so I have to do that manually at the inverter until I figure out what the new registry values are. Was thinking of changing to a newer data logger as I have one lying about but trying to get it to work seems to be either go down a firmware rabbit hole or build a small pcb contraption to 'split' the signal if you want to have both soliscloud support and direct local home assistant access. check this other repo out for an overview of the data logger issues https://github.com/fboundy/ha_solis_overview

[edit] oops just noticed mine is an S5 not an S6 so you might have some differences that I am not aware of.

mjatkey · 03-11-2025 07:39PM

Hi, yeah there are plenty of Home Assistant Integrations for the Solis range of inverters, some local and some remote.

The one below which is remote (Soliscloud API) if you open an issue with the guy he will add your inverter to the integration if its not already covered.

https://github.com/mkuthan/solis-cloud-control/actions/workflows/ci.yml

Currently I use this one (make sure you turn off any constant polling as I don't think its good for the Solis inverters), and it works well most of the time, have a little YAML script that gets ran at certain time and sets the discharge current on the inverter so the battery is as near to Bat Discharge SOC before charge window opens again.

I also have all the bits for this one, haven't got round to putting them together yet, in theory you can keep the SolisCloud as well as local control.

https://github.com/Jumpy07/Solis---SolisCloud-and-Home-Assistant

micks_address · 03-11-2025 07:41PM

https://www.boards.ie/discussion/comment/123959986#Comment_123959986

Thanks how often can you get refreshed data?

Solis inverter settings

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