Growatt SPF 3000TL LVM-ES in Split phase with EG4-ll Lifepower4 Lithium batteries
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- เผยแพร่เมื่อ 14 ต.ค. 2024
- This is a general overview of 2 Growatt SPF 3000TL LVM-ES 48 volt Inverters configured in Split phase, with a battery bank of 4 separate Lifepower4 Lithium 25.6V, 200AH connected in series to make 48v 400AH total. Overall a great system, 7KW PV system feeding into my battery bank, not a ton of power but more than efficient when connected to the grid and being aware of your electrical needs and consumption. Happy DIY-ing friends! Leave any comments below, if I can I'll be more than happy to help.
Comments are welcome, one reason I create these videos is for us all to learn, be safe and create a good experience for all while making DIY projects.
An overview of my system - 2 Growatt 3000TL LVM-ES 48 volt inverters running in Split Phase, connected to 24v EG4-LL Lithium batteries, 25.6V, 200AH connected 2 x 2 in series to make 48v 400AH total. Overall a great system, 7KW PV system feeding into this battery bank, not a ton of power but more than efficient when connected to the grid and being aware of your electrical needs and consumption. Happy DIY-ing friends! Leave any comments below, if I can I'll be more than happy to help.
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Looking forward to more videos
Coming soon, after the Holidays I'll go into a bit more detail on the settings with these EG4-LL lithium batteries.
I have the same 2 Growatts. Each connected to its own battery bank of 12v@200AH x 4 batteries. So 2 seperate systems with 120v output. I want to connect the 2 Growatt so I can get the 240v split phase but thr Growatts need to be connected to the same bank, and the Chins that I bought said 4 batteries connected max due to the BMS. So I guess I need the server rack batteries so I can get more than 10KW bank connected to the paired Growatts.
Great video Thanks
Thank you for the support Traci
hi exellent vid. one question what happens when the load demand exceeds the inverter ac goes in to help, or ac takes ttotal control, to take the load. thanks
- If I overload the system or run the inverters capacity at maximum they will automatically shutoff. Once you have a system setup you'll start to understanding power consumption loads and start tailoring your useage so as not to overload the system.
Would a single one of these units work with an array of 1000W pushing a VOC of 148 and 13A?
Yes
would love to see and have a better understanding of how you have the neutral and ground from sub panel to the main box? Or do you have a separate ground rod for the sub panel?
Hello James, I've connected a secondary breaker box that functions for solar. Bonded the Neutral on the box to the sub panel and installed a separate grounding rod that services this panel. If in doubt be sure to consult a professional.
Trying using RS485 port to communicate with inverter
Then using the RJ45 cable as a cross cable and use option L02 / L04 as your profile under settings 5 and Li
Thanks Oloye, great advice that I tried originally with the manual, thus under configuration of one battery, which theoretically should be an easier config when only running 1 inverter. I'm going to get a mini hub as a bridge and try it again as you're suggesting, this time under split phase configuration, worth a try. Appreciate your time, should it work I'll post here the update.
@@ahhlifesgood1956 will be delighted to hear your update.
Nice work, don't forget you have to do the math conversion for the amps as the Volts make a big difference 20 amps at 120V is 50 amps at 48V. So you are likely just about fine with what you are doing.
Thanks Darren for your values insight, it's fact left out of many descriptions that's extremely important when cabling, fuses and connectors.
@@ahhlifesgood1956 Which jack on the batts did you connect the cable to (rj45 to usb) to ? I know the TWO othernet jack on the RIGHT side are for battery to battery daisy chain.... I connected all of the daisy chains together and then the remaining one on the RIGHT SIDE (the 2 jacks on the right) To the PC and dont get anything ;( I have the same batts (just the 48v version) thnks
@@SdBoy - When configuring Lithium batteries communication he manual says you can use either, RS
485 or CAN port, depending of course on how your patch cable pins are wired will depend on the port you use. I tried both bot CAN and RS485 port configurations without success while configuring these eg4 24v batteries. I think I'll make a video on this today on how the configuration should be according to the manual and what happens on my systems communications.
@@ahhlifesgood1956 thanks, I havent tried either of them 2.... just the ports on the right.... They sent me the cable (RJ45 to USB cable)... so I would assume that the cable does work :) Ill try it and see and try it on both the CAN and 485 ports....
Thanks for the video! I am just wondering is there a reason why you use flexible "black" 8 AWG cable for AC input without using conduit, and put AC output inside the conduit? Could you also use the same flexible "black" (may be 10 AWG) cable for AC output too? I'm doing my own wiring with the same Growatt device but in single phase, I'm trying to figure out a quick, simple and proper wiring design.
Hi Rocky and happy holidays! The reason I used flex cabling was only for the reason of being plausible or flexible, it was also the cable on discount in the gauge I desired at the time of purchase.
The only reason I put the cables from the batteries into conduit was as an added layer of protection in the event any of the wires were to heat up, become frayed, possibly causing additional issues. Its not necessary but it is a good idea for adding an extra layer of protection in the event of an accident if you can.
In regards to cabling, 10 gauge copper wiring will only handle up to 35 amps at 170 degrees or 40 amps at 194 degrees (see chart below), I would advise running 8 gauge for the AC IN and AC Out if you have it, if not the 10 gauge wire is pushing the limits of maximum amps available for the size of cable and the amount of amps your inverter will pull and push. This is if you have the 3000tl Growatt of course. I hope this helps and be sure to read and follow the manual, cheers.
you-love-solar.myshopify.com/pages/solar-insolation
@@ahhlifesgood1956 Thank you for your values insight! I'll follow your advises! Wish you have a happy holidays!!
Thanks for the videos! I just bought 1 of these units maybe another one later. My just learning question in about the ac in. Can this be plugged into a regular house outlet to charge the 48v livepower4 battery? I'm still waiting for panels.
These Growatts are very effective, affordable and powerful for small inverters, with the beauty being they're scalable so you can grow the power of your system over time with ease. The answer to your question is "Yes", you simply plug in the "AC in" from your inverter to your house grid outlet or direct to the breaker box that carries 120 volts with a 40 amp (check in manual on exact breaker size). One thing I did was to run a seperate 120v cable to an outlet from my main breaker box that would function only for my inverter AC in. Once I installed the second inverter I had to conne the AC in from both converters to seperate poles on my main breaker box. Hope this helps, enjoy and as always be Mindful and Careful when working with electricity as it can be very unforgiving.
@@ahhlifesgood1956 Okay Thanks. I think I will do the same with the ac in. Thanks again and i will check to see if you have other videos on this system. Happy Holidays!
The ES is a U.S model is that correct?
Can't remember off-hand if that was US or international but I can tell you it's fully programmable and compatible for US elecrrical standards and English. The growatt official website breaks down the differences between models for all there inverters.
use a mini-split instead of your 240v heater. Heat pumps get you more cold/hot for less power.
Thank you for the advice, I need another option as the heater I use is a Current guzzling monster!
II have one SPF 3000 with 48 vdc 200ah like yours what breaker box do you suggest I get for my 120 vac output
- I used GE products only because it's what's available for sale in the area. Be sure to get a 2 pole and not 3 pole box, better to get a box that's expandable should you grow you're PV system.
when your inverter finishes charging the battery in ex SUB mode, does it still start using the battery charge?
In SUB mode the inverters will continue to draw power from the batteries if the solar panels and electric grid are not providing enough electricity that is being demanded.
I believe your battery readout from the Growatt is inaccurate because the Growatt units are 48V rated and each battery in your array is 24. That breaks the communication.
48v 200ah? My Gyll are only 48v 100ah where you get 200ah?
I have 4 - 24v 200ah, 2 in series to make 48v... Want 2 more, thinking of building the next ones.
@@ahhlifesgood1956 oh nice, it's really hard to find them right now
@@joshuatimes9290 - That and they are expensive for the amount of Amps you get. I have a friend that's going to give me some Lead acid batteries that I'm planning to incorporate into my system as well.