kscessnadriver
Solar Enthusiast
That's something I'll consider down the road, initially I'm probably under-paneling, at just over 20kw worth of panels for what will be 2 inverters.
New Growatt hybrid inverter SPH10000TL- HU-US split phase
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That's something I'll consider down the road, initially I'm probably under-paneling, at just over 20kw worth of panels for what will be 2 inverters.
I wouldn't consider 20kw under-paneling lol
kscessnadriver
Solar Enthusiast
For 2 inverters, so 10kw each.
Thats perfect. I don't think it can export more than 10kw to grid. I could be wrong on that
MajicDiver
Solar Enthusiast
Thanks, it's got to be a V1 because the nameplate says it only does 5,000 watts backup power. V2 & V3 do 11,400 watts backup power as listed on nameplate.
Question: when did you purchase from signature Solar? They have stated that they have sold nothing but V3 inverters since September of last fall.
Its also odd that the part number does not match any of the part numbers for these inverters I was given last year.
Purchased Sept 2022. Didn't realize the newer ones can do full backup power.
Anyone figure out the AC coupled limits for this unit yet?
Breaker recommendations on grid and load side are both 80A. If you can get 41.6A via PV, and you want to stay <1.25x breaker rating, that leaves 64-41.6=22.4A (5400W)
6AWG wire is specified, which even in copper, which looks like max 75A. So I don't think there's room to go higher than 80A on the breaker.
MajicDiver
Solar Enthusiast
I believe the ac couple limit for “any” Growatt would be less than or equal to the output capability of the Growatt grid forming inverter. Give the Growatt white paper I link below a read. It for the SPF but I believe it is applicable to all Growatt ac couple capable inverters- I have found it’s description of how their ac coupling works is spot on for the MIN-US inverters. Specifically, page 4 “In the application of micro-grid without grid input, the AC output of the SPF 3000-6000T HVM-G2 inverter can serve as a voltage source to connect grid-tied inverters and loads. In this scenario, the power of the grid-tied inverter must be less than or equal to the power of the SPF inverter.”
blob:https://community.growatt.com/562792fe-efef-4a14-8172-4730007a7b06
Link doesn’t work, go to link below and search for “
AC_Coupling_frequency_shifting_technology_of_SPF_3000-600”
the first link is broken
tacomaguy20
New Member
Has anybody done a good video about this inverter yet? Do you think Will is going to make one?
kscessnadriver
Solar Enthusiast
I'm not sure anyone has their hands on one yet even. I know a couple of us have ordered them, but we don't have them yet.
I hope to make a couple of videos if I actually get one. Ordered it a week ago. Still hasn't shipped
I'm pretty pi$$ed to say the least.
tacomaguy20
New Member
Bummer, it sounds good on paper but I'd like to see how the reviews are. I'll look forward to watching your video when you make it.
I know right? They all sound good on paper but working in the real world is where the wheat is separated from the chaff, so to speak.
What I'm most anxious to test is the self consumption mode. If this mode works like I think it should it will be a game changer for the off grid(but grid available) community
tacomaguy20
New Member
It looks like it's on the California Solar approved list as of May 21st, 2024, pulled from the excel spreadsheet on the website. Perfect for us in restrictive areas. Now if only someone can get a hold of one and show it off to the rest of us. 
Awesome! Thanks for posting.
If that's the efficiency on battery it would be amazing
kscessnadriver
Solar Enthusiast
That’s certainly good news to see. Can’t wait to see one in the wild
Referencing the attached image, my plan was to only use the On-Grid/Home Load with the CTs for zero export. But your comment on Pass-through limitations for the Backup loads made me think, maybe the Home Load is not powered in a Grid Outage?
Does anyone know if this is the case based on other Growatt units?
Does the Inverter internally disconnect the On-Grin/Home Load line when a power outage is detected? With the CTs installed it should be able to limit any power flowing into the Grid.
Attachments
Home loads (grid line)are required to be disconnected in the event of a grid outage. All hybrid inverters do this.
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zanydroid
Solar Wizard
It is just below the 10kW-AC cutoff (for one) where PG&E starts getting salty and demanding for some system configurations. If you need more than one and are in a similar jurisdiction you need to confirm the PRD PCS certification situation.
MajicDiver
Solar Enthusiast
When grid goes down, home load side goes down also.
kscessnadriver
Solar Enthusiast
Out of curiosity, what manual did you screen shot that from. I don't think I've seen a manual with the generator port shown being used as a smart load.
kscessnadriver
Solar Enthusiast
Page 7 of user manual (I know you didn't ask me)View attachment 219079
Interesting, I guess I just never noticed it. Perhaps I could use that for a water heater function in the future (although with my current water heater setup, its not really needed)
Tbh I'm not really sure what people use smart load outputs for
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