New Growatt hybrid inverter SPH10000TL- HU-US split phase
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Bill_A (aka Scat)
New Member
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Signnature Solar has it for $2,499.00
They also have a video about it,
They also have a video about it,
No, you can with grid tie only, no battery.
Officially? You would have to get a new permit from the AHJ to add batteries to a solar system and pass the code in force at that time.
Unofficially? Just add them. You aren't changing the basic terms of the interconnection agreement and if you don't do battery to grid sell back at night, the utility will never know. Some AHJs are really picky about battery systems, so building a system without them can reduce your regulatory hassles.
Mike C.
1201
Net zero
Ok that's what i thought. I didn't realize people were getting new permits for batteries, or making the process more difficult by permitting batteries
kscessnadriver
Solar Enthusiast
Anyone had any issues hooking up the smart meter to the inverter? I'm installing the Acrel and I can't seem to get it to communicate with the inverter
kscessnadriver
Solar Enthusiast
Also, another random question. Has anyone AC coupled one of these, with other growatt products?
1201
Net zero
Not that I know of. The manual suggests that ac coupling is not yet implemented
kscessnadriver
Solar Enthusiast
Bummer, I could see a situation in which it might be beneficial to me to have something like a basic MIN-TL on a subpanel in another building on my property.
kscessnadriver
Solar Enthusiast
Further update: Even though the manual says the inverter supports an energy meter, it does not at the current time. After spending a significant amount of time working with tech support, basically they're going to look into it, but otherwise, it doesn't work. So don't plan on using Zero Export mode with an energy meter, you'd have to do it with the CTs included with the inverter.
1201
Net zero
I think you mentioned it but I don't remember why you're not using the included cts
kscessnadriver
Solar Enthusiast
Distance from the inverters to where the line side tap is located
1201
Net zero
What kind of distance? I've read you can extend ct powers up to 100ft and even saw some that can go up to 325 ft
kscessnadriver
Solar Enthusiast
Probably end up being around 65 ft to run wires. I may look into it. Still doesn’t excuse the fact that the manual says you can use a meter
1201
Net zero
Absolutely right. Growatt is making what could be a game changing inverter, just another "betabox"
Last edited:
kscessnadriver
Solar Enthusiast
Absolutely right. Growatt is making what could be a game changing inverter, just another "betabox"
Oh for sure. I’m happy that tech support spent multiple hours working on it with me, don’t get me wrong. But when they say “it’s a new product,” it makes me shake my head. I ordered the first one last May, surely I can’t be the first person out there to try to run an energy meter
1201
Net zero
i added this to the first post
2/24/2025: Anyone interested in this inverter should consider waiting a while to see if growatt sorts out their issues.
users are reporting several serious issues with the inverter. Growatt needs to get it together.
please see this post:
1. (Stock Firmware) PV curtailment under self consumption mode with TOU turned on. Sometimes during full sun and with plenty of battery overhead the inverter will curtail PV production for no known reason. PV levels always drop to follow the load during these events.
2. Unable to limit battery charge from the grid. If Grid Charge is checked, the battery charges form the grid regardless if the recharge set point. For example, in this scenario why is the battery charging? What does the...
2/24/2025: Anyone interested in this inverter should consider waiting a while to see if growatt sorts out their issues.
users are reporting several serious issues with the inverter. Growatt needs to get it together.
please see this post:
Oh boy. Here a a few of the worst problems.
1. (Stock Firmware) PV curtailment under self consumption mode with TOU turned on. Sometimes during full sun and with plenty of battery overhead the inverter will curtail PV production for no known reason. PV levels always drop to follow the load during these events.
2. Unable to limit battery charge from the grid. If Grid Charge is checked, the battery charges form the grid regardless if the recharge set point. For example, in this scenario why is the battery charging? What does the...
ScottADavis1966
New Member
I have the model with the built in circuit breakers and had to contact Signature Solar who got a firmware update that I installed on the inverter and then I had a new icon on the screen at the top center, But it did not show power flow. That did allow me to use my AC coupled solar. But then ran into an issue when I installed 4 new solar panels in series and connected them to the PV1 + and - inputs. When I did that I lost the new icon at the top of the screen and now my AC coupled solar is not sending any power at all, AND the new solar panels connected to the PV1 is only showing 122 watts and 0.8 Adc and also had 0.7 Adc on PV2 and 0.6 Adc on PV3. So I tried connecting to PV2 and same thing. Only 110 watts on PV2, and it showed Adc on all 3 PV inputs. I hope they get the software bugs worked out soon.
ScottADavis1966
New Member
I got mine about 2 weeks ago and it is nice having the CBs already in place. But the software is still not working correctly even after they sent me a firmware update to enable the AC coupled solar into the GEN ports. It was working for a little while but as soon as I added 4 new solar panels connected to the PV inputs the icon for the AC coupled solar went away and now I am trying to get it back. Also PV input solder is only showing 122 watts even with full sunlight and panels are 400 watts each. Also only getting 0.7 Adc
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1201
Net zero
If you put a multimeter on your Gen inputs does it show voltage and frequency?
ScottADavis1966
New Member
No power on the Gen input in the GroWatt after I connected the four new solar panels to PV1. Here is what my AC coupled solar looked like on the EMA App today.
Originally I talked to GroWatt directly and they said the AC coupled was not available yet, then the next day Signature Solar emailed me the firmware update. I installed the update and then I had a new icon on the screen above the inverter icon.
Originally I talked to GroWatt directly and they said the AC coupled was not available yet, then the next day Signature Solar emailed me the firmware update. I installed the update and then I had a new icon on the screen above the inverter icon.
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ScottADavis1966
New Member
This is the new icon I had after installing the firmware update on the GroWatt inverter. It was there but not showing any power flowing from it, but I know it was working since my AC coupled solar was showing power production. Today when I tried to get my new DC solar working I lost the icon and my AC coupled solar stopped production and nothing I tried got the icon back. So now I have no AC coupled solar and the DC solar only produces 122 wats of power.
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1201
Net zero
Two questions:
1.do you have this option on your inverter?
2. What version firmware is on your inverter?
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