@AndyBoBandy Is that constant discharge rate issue only occuring today or has it been happening since install? With cold weather BMS might be limiting discharge rate, but I wouldn't have expected that much limiting.
Have started charging my battery slowly over the 9 hour night rate. Keeps it from getting chilly. Might build a little insulated enclosure for it.
It’s been a fairly constant since install….. I’ve never seen it discharging faster than 424 watts….
Cold weather could be a factor. Mine is only charging at that rate the past 3 or 4 weeks.
Do ya think I will need planning permission 🤔
Interestingly enough, has anyone ever looked at tulip turbines in a domestic setting? I'm not sure how well they'd suit housing estates, but for rural folks with a bit of land, they could be a great addition to a solar setup.... to keep things ticking over when the sun goes down...
In my own case and based off the last 2 weeks of having PV installed, If I had a turbine generating 150-200 watts it would probably be enough to supplement teh battery and keep the house off the grid until the PV kicked back in the following day...
Mostly overnight so no generation just the battery discharging
6kWh Solis hybrid 6kW array and 10kW battery
So your RCBO is 40a?
Looks like it. I know there's two of them beside each other but not sure what the 32a does, take a look
Enter
Advanced settings
password xx1x
Storage energy set
Storage mode select
Self us
ON
Time of use
----------------------------------------------
Change optimal income to RUN
Set charge limit to whatever you want
Set discharge limit to whatever you want
Set charge and discharge times.
ESC
Save and send and Done.
ESC to self use mode again and choose it again but this time choose OFF and ESC back to start screen.
That last step is important but no manual explains it. There are 3 options in storage mode select, storage, self use and off grid. you can change options in all these settings and save them but you must then re-enter the mode and turn it off for it to work correctly. Took me weeks to figure this out.
So my self use mode is set to off but the inverter is adhering to all the setting I have set in self use mode.
Same with storage I have it set to 30% in the event of a power cut over the winter and I'm left short. I have that mode set to off but my battery still never goes below 30%
Counterintuitive I know but it got my inverter doing exactly what I want it to do..
Had this in the past also where it would limit itself to 50a for no reason (in summer) and you have same gear as me so it shouldn't happen, my battery has been charging normally also.
FW update sorted it out.
That is a 32A MCB and a 40A RCD. @samdeluxjones has an RCBO, which is basically both a MCB and a RCD built into one.
I wouldn't dare change the 32A RCBO out for a bigger one or an MCB. First steps is to determine what is causing the fault. As you know, overcurrent protection (MCB) is there to protect the cable, not the device, so unless your installed 16mm2 cable (unlikely), you could have a fire on your hands.
Is there a high amount of current passing through the RCBO when it trips? Can you see anything on the myEnergi or SolisCloud apps around that time? Is there any useful info in the info or alarm screen on the inverter before the NO-GRID error?
You can also change the inverter password to 0000 instead of 0010.
Saves those vital few seconds when accessing the menus lol.
These any good?
I feel like this almost needs its own thread! Thanks for sharing. Not sure I fully understand it though - my Solis has another mode "FIT Priority" and I have never needed to set it to "off" when i change to Self-Use. I hope its working correctly!
I do have a question for those of us that charge on night rate... I am testing almost every night different settings. For example...
Optimal Income: Run
Charge Limit: 20.0A (dropped this from 50 to 35 and now trying 20 for longer)
Discharge Limit: 50.0A
Charge TIme: 4:00 to 7:50 (should get me from 15% up to high 80s low 90s.
Discharge Time: always set to 0.
MY QUESTION: If i limit the Charge limit to 20.0A I assume this ONLY affects the Charge Times. For example it should have no effect on the amount of charging i get from my panels!
Yea like optimal settings for charging battery overnight for winter and making sure you have some reserve for all these forewarned power cuts.
Yea sorry mine has FIT priority too and this is the one set to off but self use on, got that dose going around that isn't covid so head bit fuzzy today..
Very interesting lads... I must go up armed with the last few posts and have a look around.
I also noticed my battery never discharges below 20%. Is this a safety feature to prevent the battery SOC going too low, or is it simply the system keeping the last 20%/1kWh in reserve for emergencies like a power cut?
Mine was set to 15% must be default values.
You can bring it down to 10% if it's a puredrive as that is what their warranty covers
@AndyBoBandy If your battery is set to user defined, then it could be that max discharge limit is set too low for the battery. Normally it should match max charge limit. If battery profile is used then the settings should set automatically. It could be that the battery BMS is telling inverter to limit discharge current for some reason. On information screen you should see the limits
Charge/Discharge should be both set to 100A for puredrive
I’ve gone in and set the charge & discharge both to 100a
they were set at 50a
However once I did this, the inverter started whirling, like a fan or something started running inside it!!!
I also saw this screen in another setting;
Should I be changing anything here?
where about a should I set the battery lower limit to 10%?
Ah, the whirling noise was the battery charging from the grid!!!
I went into that setting and turned it to ‘do not charge from the grid’ and the whirling stopped
Does this look right though?
Solis cloud app is still saying I’m pulling a lot from the grid though the swirling stopped (I guess that’s the 5 minute time delay/lag?)
what about all the timers, do I need to adjust any of them?
According to the Eddi I’m not taking anything from the battery now!!
do I need to change Self Mode back to ON?
Now SolisCloud is saying what the inverter screen is saying…. Battery only outputting 100 watts!! And the rest coming from the grid!!
Discharge limitation of 8A is likely your problem. 52V x 8A = 416W. Unsure why it is set to this though. Could be coming from BMS.
Try amending through energy storage options. However when I tried to edit my battery charge/discharge rates they kept resetting back to 100A.
@AndyBoBandy I think we have very simlar system - and installer - and this is how mine is setup.
I changed nothing here expcept I disabled "backup supply". But im not sure it made any difference.
Mine is a Dyness battery 4.8. I have seen my battery discharge 2.65Kw before... i think thats roughly the max ive seen.
If someone thinks my settings are off please shout - but it seems OK from my limited knowledge so far.
Here I have set my Battery to charge at 4am on Night rate at 20.0A so its a good and slow charge from ~15% (empty) to around 80-90% in the morning. THere is no need to set any other settings here if thats what you want.
Second photo in this post says discharge limit of 8A !!!
Yeah, and I’ve since tried to increase it, but it always defaults back to 8amps.
I'd say just get on to the installer/Solis have them update the inverter to latest version first.
The discharge changes on its own during the day depending on battery SOC
You won't be getting 100A when it's almost empty for example.
That's being set from the battery bms. I'd say it's more a battery issue than inverter.
Could be a cold battery.
![Photo of [Deleted User]](https://w1.vanillicon.com/v2/11f397efbb618f280f346771bb290fe0.svg)
