Recent content by Jim Lee

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...