diy solar

diy solar

4 MWh SRNE ASF48100U200-H 10kw.

OK so it's been a cpl weeks since I installed my unit, and it has been flawless so far, except one small thing, no matter what setting I throw at this thing, SBU, Sol, UTI, low voltage limit/switch to uti at 46, and recover/switch back to battery at 50, no matter what when my batteries run out at 46, it shuts down like it's supposed too at night, but then as soon as any amount of solar hits those panels it immediately cycles on and then off and then on and then off like 4-7 times in the morning when sitting around 46 before the thing shuts down again until it hits 50v, and I can not figure out how to fix it. I am fully off grid so no utility power coming in at all, only when I run the genny.
 
OK so it's been a cpl weeks since I installed my unit, and it has been flawless so far, except one small thing, no matter what setting I throw at this thing, SBU, Sol, UTI, low voltage limit/switch to uti at 46, and recover/switch back to battery at 50, no matter what when my batteries run out at 46, it shuts down like it's supposed too at night, but then as soon as any amount of solar hits those panels it immediately cycles on and then off and then on and then off like 4-7 times in the morning when sitting around 46 before the thing shuts down again until it hits 50v, and I can not figure out how to fix it. I am fully off grid so no utility power coming in at all, only when I run the genny.
Interesting.
What do you have setting 35 programmed to? Maybe try to bump that up a volt or two and see if it helps?
 
I don't remember seeing this-what's the idle consumption of this unit? Thanks
 
Exact same reservations as I have, my plan is going to be to do what 42OhmsPA mentioned in another thread. I am going to split my panel mostly across two subpanels and put a Sungold SPH10K48SP feeding each sub independently so distribute load and since I can't parallel, that's the plan as of now, I've still got to work out how I am going to do the battery setup. As of now the inverts are in the garage and I plan to pass through the block wall and put the Sungold SG48100M's on the exterior of the house. I just don't want the lithium in the house as my kids play in the garage and stuff and I just don't trust Chinese lithium phosphate at this point. I know. The SG48100M's are IP65 and without tax and free shipping I can get more kwH than my original plan of using the EG4 PowerPro WallMount https://signaturesolar.com/uncert-eg4-powerpro-14kwh-all-weather-lithium-solar-battery-wallmount/

The batts would be to the left of the meter here on my splits wall.

View attachment 172345
What in the world is that grassy couch cushion?
 
Ouch, that feels decidedly last generation.
What? 100w for 10kw is not bad.
Lv6048 uses 85w for 6kw
Eg4 6000xp uses about 70w for 6kw

It seems if low idle is the concern, you need to separate your high draw items from your low ones on your breaker panels. Use a large inverter for the big loads, but make sure it has some sort of "green", low idle mode where it goes to sleep and scans for activity. Then use a smaller more efficient inverter for your always on smaller loads. You might even have to use multiple inverters of each type.

You pay for efficiency with tons of cash and annoying setup/installation or you pay for it in idle watts.
 
Seems it has average idle consumption or below for similarly priced units. I figure if one is putting this unit through its paces and has the pv and storage capacity to match, then the 100w of idle is small for the times where consumption is small.

I've read Zwy build post on the dual lv6548 setup and the idle is very similar if you take max output power of the inverters into consideration.

It seems for cost and simplicity of setup and installation for an AIO, the trade off is always 2 or 3x idle consumption of going with a high end unit which has either more complex setup and costs associated.

This 10kw unit fits in with the idea of the very popular 5kw Growatt single phase euro inverters that have been popular for a long time. The idle consumption of these widely used inverters is basically the same as the new ones setup for American applications. The 120/240 modification of this popular design was always in my mind when I originally saw them being used with auto transformers a few years ago on the forum and beyond. The market delivered on this.

I'm surprised that Growatt never capitalized on this.
 
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Based on my research if your unit is "affordable" in upfront cost you will pay for it with higher idle watts. If your device is "expensive" you will save on idle consumption. My solution was to be moderate in both areas. SRNE ASF48100U200 and it's other clones are a perfect balance in this way, IMO.
 
Based on my research if your unit is "affordable" in upfront cost you will pay for it with higher idle watts. If your device is "expensive" you will save on idle consumption. My solution was to be moderate in both areas. SRNE ASF48100U200 and it's other clones are a perfect balance in this way, IMO.
Yep...my Sungold 10k is a clone and I knew the consumption going in. It's okay.
 
So I hooked up my solar to some dc 500v 63amp breakers but when I switch the breakers off it does something strange inside is this normal (yes i know the breaker is upside down)

I would not be switching them under load like that... That's a crazy ark you can see through the plastic.
Screenshot_20231103-165311.jpg
 
100w its nothing ...seriously... you have solar since 7:30 am to 6pm average... its not 2.4kw a day in Idle...more like 1.2kw-1.4kw...
 
So I hooked up my solar to some dc 500v 63amp breakers but when I switch the breakers off it does something strange inside is this normal (yes i know the breaker is upside down)

Wow....being new to this stuff I don't know, but wow!
100w its nothing ...seriously... you have solar since 7:30 am to 6pm average... its not 2.4kw a day in Idle...more like 1.2kw-1.4kw...
Yep.
 
Figured I had to be getting close to 1Mwh... Would have if I didn't hit float today, knew I should have ran more loads before I went to work. ?
Total PV and Load in the attached photos (bottom right) .
Wow what is your panel configuration
 
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