I'll be adding 16kW on my flex boss in the next week or so and will upgrade wiring to backfeed more than 12kW. Will see what my results are.
I'll take you up on this offer.
In the meantime, please forward any documented steps I can take to fix the 12kW AC Grid Export limitation. It's not urgent today but I suspect it will be during summer.
I updated to latest firmware and reset all settings to default, then set all settings to match your suggestions - how mine were before resetting. Crossing fingers and waiting for the clouds to go away.
- Click on Reset on the "All to Default" to clear the system.
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- Set the following back on the inverter.
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What’s the highest ac output to grid you’ve experienced?I not having issues exporting to grid. I am sending PV to grid after batteries are full and forced discharge during my high TOU hours
Can you try to go for the 48kw?Just over 32kw. I have 3 flexbosses. That was solar plus forced discharge.
This is the best advice anyone has given me on this forum!I had issues too after the firmware upgrade that were only resolved by completely powering down everything. SS tech told me that normally no reboot is needed after the firmware update but for this latest update they are discovering that is not the case. It seems they don’t thoroughly test these updates before pushing them out as many people are having these issues.
Holy cow! Ok good to knowThis is the best advice anyone has given me on this forum!
Seriously!
I finally broke the 12kW barrier!
FYI @Will Prowse @EG4TechSolutionsTeam
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No need to be aLol at the battery voltage sag. How many packs do you have again?
Looks like 2. That is weird though. I have done over 42kw with my 3 in parallel and the voltage didn’t drop like this.Lol at the battery voltage sag. How many packs do you have again?
Wasn't intending to be a shit head at all. It was a good lol. I smile and laugh when I similar results on my system.... Something satisfying about seeing that much power flowing from something you put together...No need to be a.
2 X EG4 Indoor Wallmount. Let's be happy for small wins and if my voltage sag is actually a problem I'll send you (and EG4) a note.
Do you have 2x 2/0 gauge cables supplying the flex boss or only 1 pair?No need to be a.
2 X EG4 Indoor Wallmount. Let's be happy for small wins and if my voltage sag is actually a problem I'll send you (and EG4) a note.
No worries!Wasn't intending to be a shit head at all. It was a good lol. I smile and laugh when I similar results on my system.... Something satisfying about seeing that much power flowing from something you put together...
The only time it could become a problem is if it dips low enough to hit a low battery setpoint somewhere.
Looking forward to seeing higher output to the grid when you have better solar conditions. My quick math says your losing ~1800W to inefficiencies, I'm curious if that changes when the output increases from PV.
2 pairs 2/0 supplied with the battery from master battery to Flexboss21.Do you have 2x 2/0 gauge cables supplying the flex boss or only 1 pair?
My system would not go into Grid Sell and it took a reboot of the new firmware for Grid Sell to enable.I had issues too after the firmware upgrade that were only resolved by completely powering down everything. SS tech told me that normally no reboot is needed after the firmware update but for this latest update they are discovering that is not the case. It seems they don’t thoroughly test these updates before pushing them out as many people are having these issues.
Which "working mode" are you in?My system would not go into Grid Sell and it took a reboot of the new firmware for Grid Sell to enable.
The system is now selling to Grid vs charging when the batteries are in the 24% range. I disabled sell to grid but even after that change, and it took, it was pushing 5540 to grid earlier with batteries at 27%, and only pushing 9088 to batteries. Now I am wondering if the new firmware is not allowing the change to disable selling to grid to take effect.
Thank you for reminding me of the reboot. Now I am thinking.....
Self consumption mode as we only get generation credit.Which "working mode" are you in?
Do you ever see more than 9kW of battery charge?
I am always in either "Force Charge" or "Force Discharge" and they work according to the KW setting and timers. I never charge from PV, I just let that go to loads or Grid and its working as expected.
Hopefully reboot fixes all. I was able to power down and up without outage on the Flexboss21 by doing it during AC Charge mode . When I tried it during self consumption it took the Gridboss a few seconds to switchover to AC and my reset my electronics.Self consumption mode as we only get generation credit.
Yes we have seen 12kw per inverter so 24kw total when PV is good.
We have 2 inverters with 41kw of panels
The issue after we got it to sell back is that it seems to push half to grid and half to batteries which is not how it is set in the settings.
So I will try a reboot tomorrow to test if it will take the command to go to no sell back.
If that works it would show the new firmware is not allowing at least some to switch without a reboot.
The EG4 is going to have me downgrade to the previous firmware to see if that works. As my inverters had issues on the old firmware, we never sold back as we just got PTO on grid after the new firmware, I hope they can fix the new firmware as the old just shut off here and there.
Do you have v1 or v2 equipment?
The sudden jump in charge was due to a set change at that time by enabling PV charge priority.Hopefully reboot fixes all. I was able to power down and up without outage on the Flexboss21 by doing it during AC Charge mode . When I tried it during self consumption it took the Gridboss a few seconds to switchover to AC and my reset my electronics.
It looks like your system works the way you want after 11am on that chart. It must be nice to have a sunny day!
Have you tried PV Charge Priority mode? I haven't experimented with it but the English words seem to describe what you want. It doesn't mean that is what it will do.
I have v2 of the Gridboss, maybe v1 of the Flexboss21 not sure.