Right. Not clear ,but I'm confident that @upsideup is not using a meter, just the standard CTs, and he has functional zero export
New Growatt hybrid inverter SPH10000TL- HU-US split phase
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Ah! I think you might be in to something here
I am just using the included CTs (it comes with 2). The manual in some places calls these "meters" so there might be a little translation or wording issue. Zero Export works with just the included CTs, but my previous posts outline some issues that maybe you would not have with a external meter.
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I have both the battery BMS and the setting page you show on the inverter set to 10%. So, no the 36% time in use setting is fixed by growatt.
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I have both the battery BMS and the setting page you show on the inverter set to 10%. So, no the 36% time in use setting is fixed by growatt.
Have you by any chance power cycled the inverter since setting lbco to 10%?
I wonder if that might help
I have not yet. The datasheet lists self-consumption at <60w which is not very specific, ha.
Also the user manual has been updated here: https://us.growatt.com/upload/file/SPH_10000TL-HU-US_User_Manual_EN_202406.pdf
kscessnadriver
Solar Enthusiast
What changed in the manual? Other than a few new battery types and some blurbs about CTs for a parallel operation
I glanced at it and it looks like they added a section for changing the fans?
kscessnadriver
Solar Enthusiast
Yeah, I saw that too, just didn't remember it when I posted.
zanydroid
Solar Wizard
I checked the Growatt and distributor websites to see if these are 9540 with AXE or similar batteries.
I don't see it, am I missing something?
I don't see it, am I missing something?
@zanydroid
Says it's ul9540a certified.
Does that mean if paired with a ul1741 inverter that the whole system is ul9540 conformant?
ALP LV US Battery | Battery System | Growatt
ALP LV US Battery | Battery System | Growatt
us.growatt.com
Says it's ul9540a certified.
Does that mean if paired with a ul1741 inverter that the whole system is ul9540 conformant?
zanydroid
Solar Wizard
No, 9540A doesn’t achieve that. You need 9540 DC ESS or 9540
Ok copy that.
9540 DC ess, does that mean that only the battery needs to bear the 9540 mark?
zanydroid
Solar Wizard
No DC ESS is a specific variant of 9540v3
I asked about the 1st party 9540 batteries because I decided to run the numbers for pairing SPH10000 with one of the known DC ESS. Here is the post I wrote today about it.
Post in thread 'Finally found a UL9540 DC ESS - SimpliPHI 6.6'
https://diysolarforum.com/threads/finally-found-a-ul9540-dc-ess-simpliphi-6-6.83761/post-1127339
They are about $400-500/kwh
zanydroid
Solar Wizard
And the Discovery AES needs the custom rack to have DC ESS
Are we saying the same thing?
9540 DC ess is inverter agnostic - any ul1741 inverter complies?
zanydroid
Solar Wizard
I guess we are.
If the battery is listed as 9540 DC ESS (and not 9540 only) then it can be used with any 1741 inverter (well more precisely subject to rules listed in the manual about how the inverters are configured/selected for the project).
I just looked at Discovery rack’s rules and they just listed basic electrical stuff any sane inverter you pair with it will comply with. Well, maybe if you pair 5kWh config with an 18kpv an argument can be made that the inverter violates the current specs.
Maybe other DC ESS will require closed loop
cs1234
Solar Wizard
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Just so long as they don't require 4x-5x the price of a non DC ESS per KWH of storage we are good to go!
zanydroid
Solar Wizard
Last few messages were about the tier of code compliance that’s possible to achieve.
I’m sure a lot of batteries interface fine with it, electrically and comms wise
kscessnadriver
Solar Enthusiast
How many are you running with it, out of curiosity?
He doesn't come on here often so if I might presume to answer- the pic that was posted showed one battery
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