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The batteries were purchased from Signature Solar and match the inverters also bought from SS.

040 05 7.01 And 041 05 7.01

I have 4 Growatt 5000 ES and the 4th one does that. Do you think a software update will fix it?

I can see the PV voltage and at early sunrise my PV volts are about 220v.

26% tax credit this year for DIYer or professional install. Only stipulations are must be new (not used) and you can't count DIY personal labor.

I upgraded my 4 growatt 5k es inverters with SS's help and it updated perfectly. Did not fix my problem of 3 inverters not starting with PV power, but did upgrade the max amps from 18a to 22amps.

26% for 2022, 22% for 2023 taxes and after that I believe it is 10% for professional installers only. Unless it gets changed or extended.

yes

Where is the thread that addresses this. I would like to read it. This week I updated both CPU's on my 4 Growatt SPF 5000 ES inverters to versions 040 06 C.01 for CPU1 and 041 06 C.01 for CPU2. I believe these are the latest versions available. My inverters so far have been maxing at 18.2 Amps...

FYI Taxes due is misleading. Tax liability is what it is. You can get prepaid payments or paycheck withholdings refunded. Other than that Tim is right on.

I would run 4s1p to each inverter and use 10awg wires to run from panels to inverters. since you plan to put in more panels you could do up to 6s2p per inverter (24 panels) with no additional wiring. Makes it easy to add panels later and not have to run new wires to the inverters every time. top...

I have 4 Growatt SPF 5000 ES inverters, 30 - 395W panels and 30Kwh of LiFe 48V batteries. At first when I start up my system 1 of my 4 inverters would not start up with PV power as it should . They all do start up when the inverter is turned on and seem to work correctly. After about 3 week I...

Where did you get Growatt SPF 5000 ES inverters with 22 amp max. Mine purchased 2/2022 from Signature solar max at 18 amps. ???

the file wont open!

Has anyone had success (or failures) updating the firmware version on a Growatt SPF 5000 ES (US model from Signature Solar). I have 4 - 5k Inverters ,they have been working for about 2 months now. They are supposed to start up when PV power is turned on to them. At first 3 of my 4 inverters...

I have 4 Growatt 5000 ES from SS and 30 Kwh of LiFe batteries. My batteries barely last 1 night. I also have a 22Kw Generac whole house generator. During a prolonged power outage my generac would auto start and supply power the the house same as grid bypass does, but the cost to run 24hr/day...

Growatt 5000 ES purchased from Signature solar

You said "the Growatt charger is a simple on/off charger. ON at setting 12, OFF at setting 13. No absorption or float phases." That's not how those settings work at all. Setting 12 for me is 29% and that is when the battery is discharging and the inverter will switch to grid and wait for PV to...

I have 11.8Kw of solar panels and I get between 1 and 2 Kw per hour production on cloudy days. As long as it is light you will get some production.

This is what I ended up doing.

Free labor and when your done you know every part of your systm and what it does. Good luck and enjoy the build. I sure did.

$50K seems over kill to me. This is my system. 30-395W panels with 3 IMO disconnects on 2 Ground mounts, 4- Growatt 5000 ES Inverters, 2- Split phase Transformers, 1- FS140 Surge protector and 2 added (other than original house panel) breaker panels. Total cost about $26K before $7k in Federal...

I answered Offgrid100's question ( how to hook up AC in on the Growatt inverter ) correctly and I noticed you haven't answered it at all. I ran power to the inverter from a 50Amp breaker to AC in and connected it as I answered before. G to G, L1 to L1, and L2 to N. That is the way SS says to...

With the growatt SPF 5000 ES L=Line 1, G=Ground and N=Line 2. L1 & L2 are 120 volts each. No neutral is connected to the growatt inverter at AC in or AC out. The neutral is supplied to the neutral bar in the breaker box by the split phase transformer.

I'm not an electrician. It is my understanding that SPF5000 ES has a 450 VOC definite maximum and 18 amp cut off. Above 18Amps would just be clipped and no harm to the inverter, but go over 450 volts and your inverter dies. At 49.5 VOC per panel your maximum series would be 9 panels, however...

What happens if you go over volts by 10 or 20 volts.

The program I use is a part of "Punch, Home Design and Landscape Pro" called "detail", it works similar to a Generac cadd program I used for years. I've had it for about 7 years and I used it (The 3D Part) to design my house I built 6 years ago. I went to vertical panels for several reasons. 1...

This is my last revision. It is laid out exactly like it is going into my garage. (Hopefully my last revision) I originally planned to get 3 inverter and one extra for future backup. Since then I've learned that I can just hook it up and if I don't need it I can just turn it off with no...

I understand Sig Solar's situation and I trust your responses. I would love to hear a response to #58 comment about his inverters going to sleep and waking up when powered again. Would you be able to test that theory.

I'd like to hear more about this. (How the GW reacts to being shut off and no PV) Does it go to sleep or ??.

I like the Growatt too. Have you had ANY interaction with Signature Solar. Their negative attitude towards their customers concerning their product before the purchase leads me to believe they would be a disaster to work with after a $20,000.00 purchase. ALL I can imagine them saying after my...

I 've gotten the same negative response from Signature Solar. They could sell $18K to $20K of solar to me based on them saying and advertise a lot of promises, but when you ask them to explain, they like to say DIY, just DIY. Their reputation is rapidly going into the toilet. So many people say...

I just watched your video again and realized if the unit still charges it probably still uses the idle 60 watt/hr. Oh well, I will keep thinking about it.

Thanks again. If I buy 3 or 4 GW's and find I only need two to run my house I can just turn off one of the slave units and save the 60 watts per hour Idle cost and if I ever have problems with one inverter or I need more power I can just turn it on. Seems like a good Insurance policy and 26% Tax...