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Is anyone using this or similar inverters with Li-on? Trying to figure out if it is worth leaving my 12S pack as is and not use the full capacity. Or add 2S more on the side to use more of the capacity.
4 MWh SRNE ASF48100U200-H 10kw.
- Thread starter 42OhmsPA
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42OhmsPA
What's in a title?
1 month update.
1 major issue, I need to use a lot more power ?
From the display menus; 473 kwh produced, 445 used. If my math is correct that's ~94% efficiency, I can't complain one bit.
Everything just works. No restarts or errors, besides me charging to aggressively and the BMS going into protect.
It's handled everything I've thrown at it without issues - 240v well pump, air compressor, dryer and minisplit (obviously not running everything at the same time). 120v convection oven, microwave, induction cooktop, kettle, water distiller, table saw, miter saw, shop vac, heat gun, etc.
I still have zero regrets.
1 major issue, I need to use a lot more power ?
From the display menus; 473 kwh produced, 445 used. If my math is correct that's ~94% efficiency, I can't complain one bit.
Everything just works. No restarts or errors, besides me charging to aggressively and the BMS going into protect.
It's handled everything I've thrown at it without issues - 240v well pump, air compressor, dryer and minisplit (obviously not running everything at the same time). 120v convection oven, microwave, induction cooktop, kettle, water distiller, table saw, miter saw, shop vac, heat gun, etc.
I still have zero regrets.
Great news!!! Can’t wait to start asking you a ton of questions in a week or two ?
Mine is supposed to be here this week.
Have you tried their app or are you just using solar assistant? On FB their app gets some pretty awful reviews. I guess the update delays are a nuisance
Mine is supposed to be here this week.
Have you tried their app or are you just using solar assistant? On FB their app gets some pretty awful reviews. I guess the update delays are a nuisance
A month is not a year, so quality and reliability will take a bit longer to assess, but sounds like a home run as far as performance.
For an all DC-coupled solution (AIO) sounds like this is the full package but I’m trying to understand if there is a way to feed some AC-coupled solar power into an off-grid system as well.
Do you have any idea whether this puts out a clean enough ‘grid’ signal to activate Microinverters to do their thing?
When on-grid, do you have any idea whether excess AC power injected into the AC input will export out the AC inout or would that cause a fault condition?
The Schneider SW represents the reference for AC-coupling since it has an adaptive charging mode which can convert all excess AC power injected into the AC input into charge power rather than exporting out the AC input, and I know this SRNE inverter can’t do that but I’m trying to understand whether it will pass through excess power on the AC input when on-grid as well as whether it’s output is clean-enough to fool a Microinverter into thinking it is on grid when it is not.
42OhmsPA
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I haven't even taken the wifi dongle out of the package, it's been all SA.
Agreed
I have no idea, what would I need to test?
Judging by the lack of flickering lights, no odd motor noises, etc I'd think it's pretty clean power.
Not sure on that one.
If there is an easy way to test, let me know.
You’d need a grid-tied inverter of some type - a Microinverter would probably be easiest. No old Enphase M215s lying around, huh
.Is this AIO your only solar rig?
42OhmsPA
What's in a title?
Haha, no but the neighbor has a grid tied system installed ?You’d need a grid-tied inverter of some type - a Microinverter would probably be easiest. No old Enphase M215s lying around, huh
Pretty much. I still have my TP6048 hanging on the wall and my 1500W 24V board build on another wall.
This is the only one doing any real work.
Tell me more about your ‘1500W 24V board build’ - perhaps we can find something to work with there…
With a handle of ‘42OhmsPA’ sounds like you are not based near the SF Bay Area - I’ve got a spare Microinverter I could lend you if you were close by, but doesn’t look like that is an option.
42OhmsPA
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Just a cheap 1500w 120vac 24vdc inverter, epever SCC and some circuit breakers mounted on a sheet of plywood.
No, I'm on the other side of the country in the middle of PA.
I did remember my clamp meter can measure Hz. I checked a little bit ago, 59.97 steady on both legs to N while metering with the dryer element cycling on and off.
The unused grid connection was at 59.98.
I'll have to check and see if 0.03 is within the tolerances listed in the manual.
Is it anything to worry about?
Hah, same as me. I’ve got a 3kW 24VDC 120VAC inverter fed by a 60A Epever SCC powered by a 3P1S solar string (all mounted on a sheet of plywood).
Do you have any DC-coupled PV powering that SCC and if so, what voltage?
Figured that’s what the ‘PA’ in your handle might mean…
According to this: https://www.iso-ne.com/static-asset...112014/inverter_manufacturers_perspective.pdf
Normal Operation is 58.5Hz to 60.5Hz, so you have absolutely nothing to worry about at 59.X hertz…
If you are interested to try to test a grid-tied inverter running off of your SRNE hybrid, send me a PM and we can brainstorm off-line…
42OhmsPA
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I did but those panels are now on the ground mount. I've fed it anywhere from 28 - 12x volts over the various strings I've connected. I have 2 more 315w Qcells in the garage I could hook up.
Thank you.
Let me think about it and get some other projects I have in front of me checked off the list.
22a per string. 500v max per. Operational range 125-425. 5500w 100a each controller
Many thanks!
Updated the max string amps too. 22a per
42OhmsPA
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Yes. I'm running 9s2p 315w q cells to mppt 2 and 6s2p 305w neons to mppt 1.
Technically I'm over paneled on 2 by 170w lol.
Mppt 1 (S ground mount) is making more power than mppt 2 (S and W roofs) most of the day since it's angled appropriately.
It was pretty fascinating and irritating seeing how much angle affects production...
Thanks @GOO5E .
42OhmsPA
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Photos attached are:
A snapshot around 2pm yesterday, I worked it good all day.
Meter checking frequency with dryer cycling yesterday.
The voltages that aren't scaled correctly under inverter settings in SA. I alerted SA to this and they are planning to correct it shortly.
A snapshot around 2pm yesterday, I worked it good all day.
Meter checking frequency with dryer cycling yesterday.
The voltages that aren't scaled correctly under inverter settings in SA. I alerted SA to this and they are planning to correct it shortly.
Attachments
Nice! What all did you have running with some of those load spikes? The dryer and what else? Have you overloaded it yet?
42OhmsPA
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The rest of the house. Other big loads at that time would have been the water distiller and maybe dehumidifier plus the fridge and freezer compressors if they were running.
I have not overloaded it. I have seen 90+% load on one leg and under 10% on the other with 0 issues, this makes sense since it's essentially two 5ks in one box.
I decided to pull the trigger at 1245 ddp from China 8 days delivery via DHL, pretty excited for it to get here, will let y'all know how it goes but I'm expecting good things I have a few other srne inverters that I have had running for over a year now with 0 issues.
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