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It is time for a positive post on this very useful forum , I have installed an off grid set up complete with 28x 48v 400 watt panels , 2x Growatt 6000Es+ inverters , 3x Rosen solar 9.6kw batteries . I just wanted to say , IT IS ALL WORKING PERFECTLY ! no problems ! This is for some of...

Covid Joke ? If you wear glasses and are forced to wear a mask , you may be entitled to condensation ..........

UPDATE!! After a rude amount of pressure a Rosen solar engineer contacted me and connected to my batteries via a usb cable through my laptop and re set the 2 errant batteries ! It has made a world of difference as the capacity is 200 ah X 3 so full power ahead. ! As I have posted previously ...

I have two dogs , I called one ,Bono and one Edge , so when I call them I shout "hey U2 come here "

Yes just finished, I have had some set up issues but Rosen are on hand with advice . 1 x battery would not charge over 49% , but after changing a few settings is now at 99% I am just going to the site to reset the comms cables but it is producing a lot of power

Go off grid and stay off grid , all these regulations are aimed at controlling anyone who wants energy independence!

I am glad to hear , but sorry for you , that I am not alone in suffering the rosen solar pathetic customer service , (lower case representative of their status in the solar world ). I bought from them direct and had a lot of advice and attention in detail. Since installing one of their 10kw...

and whats his favourite vegetable ? AAAAAAARRRRRRTICHOKES

Good point , I had not considered the system shutting down and I dont really want to run the genny to use an oven . We always have a little camping cooker on hand as when we lived on grid there were always power cuts !

Butyl rubber strip between all mating faces , some are even self adhesive, from glazing suppliers ,

I made racking from scaffold poles and 40mm galvanised box section , driven into rocky ground , concrete where needed braced against a short wall with posts set into the top , ,28x 2M x1M400 watt panels .cost 1100 euros . Enjoyed it?

I have discussed this with rosen and they have just sent a customised USB-RS-485 cable , I hope it will come with software so as to deal with the capacity issue. Thank you I will look at the you tube vid.

i just read your questions again and yes I paid direct to Rosen 50/deposit 50 when shipped .

BFT DEIMOS bta 600 gate opener which has 24v dc back up . 2x 12v 18 ah batteries in series ,24v 2x 30w solar panels, in series 1x PWM charge controller - 24v output removed the 230v supply lead from internal transformer connected 24v to output side of transformer. housed in a little timber...

This is my next challenge , we use a filthy gas oven , methane, toluene , formaldehyde, benzine ,carbon monoxide etc , it has to go , too much pollution in the house. So I am researching electric ovens and I think we can do it . We have an air fryer , odd title really , its just a small oven ...

I was interested in this post as I just built a " passiv haus " , in principle , not certification ( that alone was quoted at 22000 euros ) but we are totally off grid so the similarity ends there , Good luck with your project and do,nt listen to anyone who says ooohh that ,ll be expensive ...

Mine too, but Ricky has made a point . My interpretation is that P C ,s have a dislike for solar " contribution " as there is nothing in it for them . So their way of discouraging going solar is to make it cost ineffective by reducing , (eventually eliminating ) the feed in tariff / subsidy ...

Can I ask for opinions on this quote from Rosen solar for my off grid plan please ? I have come up with this formula to run a 1670 sq ft passive house , with all needs for two people and an annual consumption of less than 4000 kwh per year . many thanks , Graham

No doubt they will know Helium !!

All batteries are lithium 48v , not 24v

Update on the gate opener . It works ! I wired the 2x 18ahr batteries in series and connected directly to the 24v motor circuit . What I found was the 240v transformer converted down to 24 v in AC , so had to identify the DC side of the 24v circuit to connect to . 2x 20W solar panels now...

easy reader. 400w mono solar panels x 28 PV combiner box , 2x input , 1 x output , switches/breakers SPD x 2 Growatt off grid inverter SPF5000 HVM WPV , 230 VOLT single phase 50/60 Hz x2 WiFi module x2 Life po 4 batteries / powerwall 48v / 200 AH x 3 battery combiner box x 1...

This may be of help as I have just set up my off grid system and found another way to connect it . I followed instructions on the Growatt manual but kept getting 04/01 /80 and other fault codes , always a fault of some type . so I tried an alternative method and it now has been running...

I have just replaced the 3rd fan in my 2x spf inverters and expect to replace the 4th soon . This failures started during the warranty period and it was far easier to change the fans that change the inverter. The fan lock is a warning that one of the fans is not working . easy job , remove...

I have a similar situation ,and found out that the inverter will not work with a modified sine wave generator , it must be a pure sine wave generator

I have just built a new timber low energy house and have installed a full off grid system . It was worth the effort ! I have 28x 400 watt panels, 2x growattSPF TL inverters@ 48 v ,3x 200 amp Li batteries . I can run the house with all the usual equipment, induction hob water immersion heater...

The system all arrived ok ,but there was some handling damage to the main box with the 400w panels . After unloading I can find no actual damage. What is strange though is that the 28 panels were stood UP on edge on the pallet ? This of course allowed them to shift left and right so it was...

Hi , I delayed my shipment by a month for storage reasons , but it is now shipped . I will keep you posted .

"Any reason why you’d want to keep these banks seporate? " Yes , the 4 batteries are 6+ months older and 16s The 2x batteries are new and 15s so they have to use different inverters/BMS

Yes , I have an order in with Rosen solar , delivery to Athens late Feb.

Yes , per battery .little sun here today so unlikely to reach 3.45

Thanks , I have downloaded the seplos software and ready to use it , which cable is used from PC to battery?

I have 15 s Rosen batteries and need to tell the inverter this , it thinks the batteries are 16s , hence the issue

Neither inverter (Rosen/ Victron) has the capacity for all the batteries to be paralleled , so they are separated

No, the problem persists . I have considered that I was putting in too much voltage as there are 2x strings of 14 x 400 watt panels, @ 5600w, and thought this might cause a shutdown as takes it just over the SPF capacity of 5000w ? I can easily take out panels from the strings but will this...

48v batteries, sorry. reading from the battery SOC lcd panel

Thanks but it's not worth posting back to China 2 X 100 M reels of cable and then paying import duties when the bigger cables are sent.

Yes I have a 6kva diesel generator, alas another problem there , the growatt inverters won't accept the charge ! Location is Kefalonia, Greece, 300 days of sun

No grid

Yes BMS linked to all batteries and both inverters RS485/ CAN

Thank you , I checked the output on each string today and it varies between 306 and 362 ,I am trying to keep down extra costs by adding more cable to the 4 mm as the reels are already bought from China

Ok , I have a cable CC USB-RS-485-150U , connected to seplos now waiting for comms to work . 19200 baud rate com3 port

Yes , happy to tell what I am using . Though be warned, I am in dispute wit the supplier of my system rosen solar . See "rosen solar ZERO BACK UP DO NOT BUY " nevertheless - 28x 400watt panels 2mx1m each 11.2kw total 2x growatt spf5500html inverters 1x combiner box 3x Li 9.6kw batteries whole...

I have had this shutdown issue ever since the system was installed . Many , many conversations with Rosen but never a solution . There is plenty of power and it runs fine until the batteries are full. It is fitted at a new house build so usage is tools only , we will move in soon and I am...

Fantastic space you made there , Will , I was wondering where you,d gone !

the 3300/3400 is not the variation , it is the different voltages between low/high charge state . Generally all voltages are the same

There are 3 x Rosen batteries and they don,t shut down , only the inverters do this . Sorry I dont know if 15/16c ? how can I tell ? 14x 400 watt panels , in 2x strings one to each inverter. always in full sun , 2x Growatt SPF 5000 /5500 inverters.. Software version 907/909 , not...

Righto , thats clearer now, thanks everyone . I ll split the loads to each inverter , no sine wave issues then .

I talked at length to Rosen solar after one batterry would not charge to full , it would only go to 49% they told me to set battery tpye to AGM , and switch off the 2x other batteries . this worked and all batts are 99% . BUT ! it started a long period of shut down problems , it went on...

I found this interesting as I have an apparent BMS failure problem . I have 3x 9.6kw batteries and 2 work ok , the voltage on the faulty battery / BMS is same as the other 2 batteries , so it could just be the display that has stopped working ?

Yes I bought a complete 11kw system from Rosen . I imported it into Greece . It was not well packed and there was some damage to the cases , none to the contents . There was an EU agreement in September 2017 that stopped the high import tariffs on Chinese solar panels so no import duty was...

I just ran into this thread as I have a similar issue and am hoping to find a solution to my system problems . Can I ask for advice please on Growatt spf 5000? When my three li batteries are at 100 % the Growatt inverters shut down = no power ! system : 28 x 400 w panels 2x growatt spf...

Rosen solar batteries

I am installing an off grid sliding gate opener a BFT Deimos AT 600(kg) , to a 6 metre steel/ timber gate and would like to hear your opinions, please on the best way to power it up ? It uses 70w at 24 volts so my current thinking is 2x12vx 15 amp batteries in series and 2x 12v 40w...

fault code after shutdown is 56 cell voltages around 3325 generator has not been " accepted" , it will power the house but not charge the batteries Le code d'erreur après l'arrêt est de 56 tensions de cellule autour de 3325 le générateur n'a pas été « accepté », Il alimentera la maison mais...

I dont have a 230v charger capable of more than 30 amps and being off grid , it is not possible . I am reluctant to open the batteries up as this will be a warranty issue , that is if rosen solar honour their warranty !

I would think it better if you went straight to 48 v , it is far better and far more kit is available. Then add a lot more panels if you want real charging capacity. I am also in Greece, and run 28x 400 w panels and totally off grid. We have the sunshine to feed the needs of a house.

https://www.eshops.gr/en/

The commissioning issue is probably based on the fact that there are 28 x 400 watt panels with nothing to do ! When I isolate the panels the 3x 200 ah batteries run the few tools that are being used in the house build and have yet to drop under 90 %charged . I am running heaters to try...

I can,t open this file , which program will open it ?

Yes I can read cell volts , right now they show 3332

I wanted to build in 3 days of autonomy so this will cover that situation , and possibly longer? panels are $84 unfortunately, not $44 ! average sun hours works out to be 4.43 per day so lots of back up from the battery bank , maybe I could run a small inverter welder too !

are Growatt suggesting the latest firmware ,3. F2809_SK040.03_20210204_A.bin (224KB) is not as good as the earlier version ?

SOC is 50.2

I have downloaded the Seplos BMS upgrade but can not get it to connect to a battery . J'ai téléchargé la mise à jour Seplos BMS mais je n'arrive pas à la connecter à une batterie.

Thanks, I tried an e mail to Growatt , but had no reply , I wonder if I used the right contact ? have you an e mail address that works for Growatt ? I will ask Rosen for a code as well ,

I am still suffering shutdown with my Rosen solar system . Every time the batteries reach 100% both inverters shut down , its really frustrating , I cant be away from the units for more than a few hours ! I have to switch off all the panels at the combiner boxes and restart the Growatt...

Right , I have had enough . I have pleaded begged and threatened rosen solar for solutions to problems I have had with the 10 kw system I bought from them in 2020. The mails/ messages / phone calls have been ignored . I live off grid using only their system and it has been a frustrating...

I am off grid and use the electric generated by the panels to heat water in the tank ,indirectly through the standard heating element. It heats water during 1200/ 1600 hours , 130 litre tank . The benefits of this method simplifies water heating so no need for extra plumbing , internal/ external...

rosen solar , ZERO BACK UP ! DO NOT DEAL WITH THEM !

Thanks , I see that I did not answer about battery voltage . It is impossible to run on Li setting a warning appears with " low voltage " if tried. So my battery voltages are in the 50/52v range. Same issues still exist today , full batteries then shutdown . very frustrating. The generator...

I wonder if I posted this on the right forum ? Can somebody guide me to the right place ?

To get to this stage I removed all the rs/ can cables . Now they are reconnected. I set the max voltage down to 52 , it reached 51.6 and off it went! Original settings are 56.4 .I am putting in DC breakers so I can isolate a string if needed , but as I said , no power draw means the batteries...

Hi , Thanks for your reply , I saw youre in NC my niece just bought a house in Lenoir ! We flew into Charlotte for the wedding . I have a 36 metre run and have enough red and black 4 mm for 2x runs each so total , my cable , is 8mm so with the 10mm I can get here makes 18mm Do you think...

Messages 110...

Many thanks for your reply , yes FLA batteries and I could increase the size , easily , 2x 45 ah are accessible here and more reserve power is good ! I looked at 2x 40w panels so as to raise the input voltage over 32 amps to charge the 24 v batteries , 1x 40w panel will only give 20 v +/-...

here it is , could it be a diode defunct ? I have read this is the possible cause of a shutdown ? I am bombarding Rosen solar with mails , its the only weapon I have to a company in China ! Nothing back from them , it looks like they just want me to go away , no replies , nothing in 2 weeks ...

I have not updated my spf 5000 Growatt software but everything , well nearly , is working ok , so I am reluctant to upgrade , unless it helps with the WiFi problem I have ? I cannot seem to get the SHINE wifi to work ? I have tried to register 2x units and always have the same difficulty...

Hi , I am talking to Rosensolar and they are good on price , has anyone on this forum actually used them ?

Ok thanks, now on 58.4v charging, let's see if it'll reach it , if it does then I will program back to Li on 5. Rosen are very bad at Comms , I try every day ,aha ! Inverter just showed SOC at 58.2 v and then all batteries show Y fault which is cells at 3420 I can't get high enough to set to Li...

I rigged 2x 80w panels off the stern and now have 1 x 120w on the bimini and tie the boom off to starboard when on my mooring . 2x aluminium tube mounts were also useful for hanigng the rib from .

One of my 3 48v 200ah batteries has just turned itself off , three are all linked together with BMS 2 others are still running ok and 98% charged so no actual urgency .I have tried switching on/off overnight but absolutely nothing . No lights on , no display . removed cover and tested voltage...

The master and slave are determined by which inverter is switched on first , I have 2x Growatts . When changing settings on master it relays the settings onto the slave .

I just heard from Rosen that these batteries are NOT compatible

I hope someone may be interested in an update of this post ? The Rosensolar system is up and running , we moved into the new house and it is totally off grid . during hot months we ran 2 or 3 A/C 9000btu units and a 1.5hp pool pump , hot water by 230v tank, 2x fridges et al . Life was good...

Thanks for all that , my absorption rate is not so high but I'll soak it up later. I tried to set to Li batteries today and both inverters flashed low voltage , around 50 v and all panels switched on but charge not going to batteries althoughpanels were pushing out 315 v in full sun. So the...

I have this , but my system is 18 months old ? If the updates are in numerical sequence then it must be updated ?

Well I couldnt load a picture of my system , so here,s a picture of my car :LOL:

My 2 dataloggers have been working perfectly for many months and I came here because one of them just lost connection without any changes being made, so I looked through the forum and found this thread. Instead of a flashing blue light there is a flashing green which means it cant communicate...

Yes it does look that way , I contacted Rosen solar they want 16 usd for a replacement board , its a CN board , any ideas where I can source one at a better price , OR change it for a superior Seplos board ? these batteries are only 700 cycles and now I expect the others to fail so may be...

Sky link , I tried opening the update you posted , but nothing there ?

I built a galvanised pipe frame and leant it on a fence/ short wall , very robust and latitude angle , I inserted smaller diameter box section inside the fence posts to stiffen it .

Update on this issue , solved , but this transpired into another ! Off Grid system I contacted Rosen Solar and was asked to run down the 46 % charged battery B to 20 % So I hooked up 2 x 3kw heaters This took around 3 hours. then try setting the battery type from Li to AGM . This gives a...

That depends on the wind direction, exactly the opposite if the wind is from the lower end of the panels , i.e. downforce

Thanks Snoobler . there are several areas where consumption will be reduced in the next house , so consumption is destined to fall , possibly 20/25 % reducing the current 3700 kwh p.a./ 10000wh per day . Insulation is + 40 % better so less energy needed on heating and cooling , water...

Just checked my battery pictures , and the differences in volts is .04v / .05 v. Sorry guys . I did try the reset button on the low battery 3 x occasions and the figures remained the same . battery A 50.45 v ,96.62 % SOC battery B 50.43 v ,48.94 % SOC battery C 50.43 v 99.47 % SOC...

Right , I was looking as I have some issues with my system and was told I should update from supplier . I am on 48 02 909 49 02 907 This is how the system was supplied