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ok, thanks, with Gen input its clear. In my case the Generators are physically far away (100-200m) and would be full power grid tied, no need to control. The only function which would be required is the AC charging in case of energy insertion into the grid.

Hi, the best is of course 18 x PV to MPPT 2 and Field 2& 3 parallel on MPPT1, pls use junction box with fuses for combining the PV fields.

Hi, interesting topic, I wouldbe also interested. Also not 100% clear to me, how this can work, maybe more experience will enable that. Victron and Fronius are doung that very nicely. WOuld be nice to see if Deye can do same (as Victron replacement with integrated MPPT etc)

Hello guys, I have 3 x single phase hybrid inverter home and would like to bring them in a "victron-style" 3 phase system design. GW5048 etc, GoodWe does not explicitelly allow that, but technicaly it should not be an issue, what do you think: - every single unit just uses 1 phase meter on...

Hello guys, can I use this inverter as MPPT only ? To charge Battery which is used mainly for the other inverter, this one should just serve another PV side? rgds,Daniel

Hello guys, my challenge: I would like to remotelly deactivate BMS in my caravan. The termination of power cable is not the preferred solution, therefore I am looking for a logical one. Thus the idea on balance cable came to my mind. Did some one treid out to terminate one of the B1-4 or GND...

In LV case you can go for Seplos or JBD BMS with CAN, that is better.

Hi, very nice project, I would love to be a tester as well. DO you have a link to your project for the community ? thx , Daniel

Hello experts, I have the following case: due to quite complex installation in home my grid tie and hybrid inverter have different injection points of AC. IN case of blackout I am planing to disconnect from grid and change the injection @ hybrid inverter from AC in to backup output. THe backup...

Hello guys, accidentially my Delta 2 Ecoflo did lost bluetooth connection. Any idea how to bring it to the pairing mode ? No single word in the user manual about it :-( thanks , Dan

Yes, that is my last state of my research. It will become quite expensive and complex. I did end up in 48V system with parallel inverter, that is scalla ble and min disadvantages .

I did stayed with 48V battery sofar. Some days i will re-investigate for a trial on HV. Rgds Daniel

Firmware update for Seplos (non bluetooth version).

I am running several GW5048, GW3648 with it , no issues.

Hello guys, did someone managed to make a serial chain of BMS to cover higher voltage batteries. My plan is to bundle 2 x 16S Batteries for 96V Setup , I thought to get 2 x 16S Daly or JBD BMS for that. ANy thought if this will work or/not damage the BMS ? rgds,DAn

Hello guys, I am wondering if someone did already re-packaged/upgraded 2.4 or 3.5kWh batteries with new higher capacity LFP cells. It looks like pylontech is using 15S configuration which might be upgraded potentially. rgds,DAniel

Hello guys i own this inverter , configured as general mode where PV energy will supply loads first , then battery and last grid. All works so far , but i could not find how to disable ac charging of battery. Anyone has an idea? rgds Daniel

not really, in my case AC charging only allowed from PV energy(State regulation), therefore fully linked to zero export.

Hi Thanks, actually the operation will need to be separated: Daylights: string inverter creates PV power and compensates loads and AC power for the battery charge Nights: only EH hybrid is active I belive this could be potentially working setup , the only topic which is unclear how to enable...

Hello guys, I am planing to extend my existing Setup with grid tied inverter (SDT G2) with AC hybrid inverter with 48V battery. GoodWe as example below showed exact setup I need, but I would like to have 0W export in this setup. Any idea if this would work ? I believe the simplified ligic is...

thanks, we even do not remember how the sun looks like , since weeks only 50 shades of gray here :).

yeah completelly open, just wires. In the final setup I have also the lightning surge protection in . BTW in dead my values are close to NMOT. WIll monitor it more closer. THanks for the feedback so far.

update: we did measured VoC on the string: endup in around 38.5V @ around 0°C. According to spec it should be ~ 42-1V. for the complete string it is a delta of 50V ! Panels are brand new. The second string showed similar value ~38.6V@0°C. Its even much lower then the spec @ 25°C ~41.9V. Is this...

Hmm, I guess you are right, there was a mistake in the calc: Panel Voc is 41.9V and coefficient is at 0.3%/K, calculating at -10°C will end as following: Vadj = Voc × {100% + [(Tmod - 25°C) × TC Voc]} Vadj = 41.9*0,003*35 = 0,439V Voc max = 41.9+0.439 = 42.34V String of 14 modules, 42.34*14 =...

yeah, its not a single event, and injecting the current should reduce the VOc a bit. BUt basically I like the idea about the voltage monitor more. The condition of ultra cold temperatures and sun ist almost never there betweeen nov and feb thanks

Hello guys, during the planing we did not sonsidered Voc @ very low temperatures.Assuming that might happen the Max MPPT votlage will be reached or even exceed by 30V. Unfortunatlly to change the inverter setup to accomodate higher voltage version is a bit tricky (need to change from LV to HV...

Hey guys, I am also wondering how this works. My customer are upset that the cycle count is worse than a weather forecast for 5 days :-(.

data protocol for the communication over USB

Hello guys, after dicovering multiple options I did found this offer from China: https://www.alibaba.com/product-detail/-192V-384V-63A-120S-cells_1600389384377.html sounds quite promissing and almost complete assembled for reasonable price. Anyone knows them ? rgds,DAniel

actually I do not have any big machines or inverters running on 3 phase. Only want to make my house fully backup capable. No need for stacking the units. 4.6kW per phase is anyhow already above the typical range of usual 1A here in europe. Here we have usually 3 phase installation, so...

Hello guys, the GoodWe 3648-EM is a nice entry all-in one quite unit. But unclear if this could be used in 3 phase configuration like Victron Multiplus ? Any ideas ? rgds,DAn

Hello guys did somebody investigated to use the Sungrow hybrid series for DIY batteries ? THis one supports already 150V and 30A charging current, so well suitable for the 64S config. The question is if this one will support customer battery setup like GoodWe without BMS communication...

Hi guys, do you have any measurement data on power consumption of an MPI 10k all in one system ? Datasheet is not really showing it in several modes. Why I am asking : It looks like Inverter consumes >100W in Grid Tie with backup mode, as far there is enoug sun energy in the day its kind of...

this one is cool. I am urunning it without any issues

Hello guys, I did finally built the MPI 10k with Grid Tie Setup + 23kWh LiFePo4 Battery. Noise level is realy surprisingly acceptable. MPI5.5k is much louder. Now looking for the optimal battery settings on MPI software. Not sure if somebody did already investigated here. rgds,daniel