₦airaland Forum

Thank God for safety of life's of those around, else it could have been another sad story for all

The lead-acid battery handle dey show if one looks carefully at the see-through holes.

HeavenlyBang:
Person say na lithium

You need to understand that some banks did their installation when panels were 300 - 350 W.

and so they are little as they were the latest at the time, with 18-19% efficiency

At least a recent project for sterling bank, used 550W in the deployment

bassdow:
Going by your assumption, how many Banks have you seen using large Solar panel. na mostly many small ones dem dey install abi dem sef no get Money, or uses pWm controllers.

Not disAgreeing with you BUT a lot of times also, the so called professional installers are the culprit. Most times, clients are clueLess on what they want hence reason they paying you to be of help. Issue is some of us most times ends up not really putting interest of said client as priority.

Just thought I should ask since we learn everyday. Personally, the lowest I have ever installed for clients are 300-watts

1. you can install an inverter AC to cool the room down

2. Use an injector and extractor fan. [The injector fan brings cool outdoor air; let's say it's placed around a tree and extractor takes the heat away.]
It can even make more sense if it is temperature and humidity controlled.

yvy1:
Gurus in the house,

I hail o.

Please how do you cool a solar system installed in an enclose space (i.e store) with no windows? That was the only place we saw fit to install without distorting the beauty of the interior design.

The set-up is 3 16kwh SRNE lithium batteries, 1 12kva SRNE inverter and charge controller .

Also, is this set-up noisy?

Ijegun, ikotun area, Lagos

Or we could have it sent to you via our dispatcher

Machiny:
location

There is Feeo brand in case you need it.

there is no 30A only 32A

Machiny:
Who sell 32A Ac and 30A Dc breakers?

Let's reduce the charging voltage to 54.5 , float at 53.5v and leave other settings.⁣

lets see how that goes

quote author=Collione post=136184945]

Good morning . So sorry for the delayed feedback. Because of the way the battery was placed getting a picture was tricky. Please find attached. Thank you[/quote]

All is fine from this angle if the battery is a 16s battery.

can you please send a picture of the sticker on the battery? I am having this feeling it's a 15s battery.

@15s the batteries will all be more than full, which is 3.68V instead of sticker of 3.65V, which for long-time usage is pretty bad.

Collione:
Hello my bro. Thanks for your response. Please find attached the parameters. I appreciate your help

It's good that you were proactive to turn off power sources.

What voltage was displayed on the battery screen? Please share your inverter parameters/settings for verification, in case there is a mistake.

alarm; full, Power/supply over voltage warning [ it think]:pOVW sOVW, protect mechanism enaged; pOVP

Collione:
Thanks so much. When the battery got full a red triangle kept flashing and here is some info displayed in the pictures. Kindly advise. Had to turn off all power sources incase

Make COU or cut-off Voltage to 48V if it can go that high, but if not, make DTA 49V.

while CU is 55.2 and FLU is 54 ...... This is a more conservative battery parameters for 16s LIFEPO₄ Battery

Collione:
Thanks for your feedback.Please find the image attached

You need to check the manual for a more in-depth explanation of the lockdown voltage.

But in my own opinion, I believe you should set the lockdown to 48V for safety or precaution.

Collione:
Hello good morning everyone.im having challenges setting up my battery settings on the inverter. It's a 5kva firman inverter with an lvtopsun battery. For lvtopsun the battery cut off voltage is 48v. Honestly I don't know the meaning of cut off voltage. However for the firman it says the battery lock down voltage is 42v . Is lock down voltage and cut off voltage the same? I don't want a scenario whereby the battery goes lower than it should as the BMS doesn't seem to be communicating

Do a complete system reset to reboot your new setting with startup and see if the battery will accept the charge. Also to note is that if your current is high, it may be rejected, so watch out for that too.

ask4bk:
Hi guys!

This SRNE 10kva inverter has kept my battery charge stuck at 53.2v. That's far from full. There are 6kwh solar panels connected to it. But right now in hot sun, only the sun is carrying the load of the building (as set by user), and battery isn't discharging as we can see on the inverter.

My first guess was the float was set to 53.2v and that's why its like this.

Entering the settings, battery type is set to Li4. I changed it to USER and set bulk and float to 56.0v (thats my personal setting for all my LFP). Yet, nothing changed. Inverter still only getting the sun it needs to run the house and not charging the battery to set 56.0v.

Settings is such that only solar panels runs all loads.
Charging source is set to solar too. Though there's NEPA, the inverter is set to ignore it.

WHAT AM I DOING WRONG?

Battery is cworth 20kwh.

Need help for who understands this SRNE behavior

If you haven't done your installation, i will strongly suggest going for only 9 panel for those to be used in series.

If case 10 is to be used, say 5 panels in series and then have them parallel; these arrangements could likely damage the inbuilt MPPT if the Isc is more than that of the inverter's MPPT.

The best you should do is watch out! BTW, if you need a quote and installation with every bell and whistle that's going to keep your investment safe, be sure to reach out to me via contact in bio.

algomachine:
Good day guys, I wanna install 10 585w jinko panels and a growatt 5kva inverter plus a growatt hope 5kwh battery. What should I budget for installation and accessories? I’m getting crazy quotes. Thanks

There was a problem on site regarding error E5 on Indian inverters, which we experienced on a site, and I want to gladly share the solution with you.

We've made this <a href="

https://www.youtube.com/watch?v=9bjA3mge48U">link</a> to point to "Talk with OgaSolar YouTube page.

I don't really know what could be the issue, but then fingers can also be pointed to the surge since you said it rained.

obinna37:
never use heavy appliances on it,I off the inverter myself because the battery is low and it's about to rain,when I switched it on the following day,it was displaying like that.Thank you

This may be likely error 53 or 06, which is related to unstable output voltage

You should consider taking it to a repair centre.

BTW, did you use sometime slightly heavy on it?

obinna37:
Pls the guru, what's the cause of this fault,no error code,It can't power on,I have done every reset I know, still no solution

E still dey fire 5 years plus after installation.

perform have drop due to weather no doubt but every little wattage counts

dollarnaira:
Pwm users this period....

It was last sold for 118k when I bought it last year for a colleague.

Request a price list and see if it is available there.

EduTechTainMent:
Pls how much did you get yours? Couldn't find it in their website

Try VMpower 1.5kVA 12V sold by Techland; I have one operating for 2 years+ now. It handles surges pretty okay.

Just ensure you have enough panels or a strong battery because of the surge if the fridge is used.

Jefferyzz:
Abeg I need 1.5kw or 2kva hybrid transformer based inverter. Any recommendations pls

Can you please share pictures of the panels, i have a feeling i may have used its kind

quote author=burnerr post=135772677]Good evening house.
Has anyone here used ZnShine panels and can they kindly give a review of it's efficiency?
Thank you in advance.[/quote]

If it is assumed that the 6kW are all in series and your Isc or Imp is lower than 20A then using a 20/25A DC breaker is a good way to go.

Likewise, for your inverter a 160A mccb is highly recommended.

But if there are other factors to consider then, those could be stated.

Ahyjo:
Please I need guidance on the breakers I need to ensure are used for a 6kw pv and 6kva inverter setup

It has a working communication and above all, it has full capacity

quote author=Drgreatone post=135085524]
What's ur review of the vestwoods battery seeing as u mentioned it here over the more common ones like feli, sms, cworth or sako?[/quote]

This is a video i reviewed on Growatt Es5000 with their 4.8 kWh Battery (Hope)

We've made this <a href=" 
https://www.youtube.com/watch?v=J3Qkt5Cb-pM">link</a> to point to "Talk with OgaSolar Youtube page.

From the image you attached, I see it is a hybrid inverter you use.

There is a need to reduce the charging voltage to 28.8V as opposed to the 31V you currently do have and float voltage to 27V.
What is happening now is that your battery is undergoing an unprepared equalisation charging state, which should only be once a month.

You will need to consult our manual to understand what i have written above.

quote author=kuma007 post=135082431]Please I am not a technical person. I just need advice.
Kindly advise me please.

Attached is the pic of the UI of the inverter[/quote]

that will be like 8-5% DoD or SoC

So, too low to continue, else you may have to start looking for ways to wake the battery up

kristien4:
how many %dod will 48v translate to on lifepo4 ..??

Yes, it is the perfect voltage

kristien4:
Is 48v a good cutoff voltage for lifepo4 battery??

Hello!

You will need a 5kVA/6kVA inverter hybrid (Deye, Growatt, Tbb) or conventional type (victron, Tbb, felicity) if you need to run both the AC and pump simultaneously

But if you plan to be self-conscious and know you won't run both together, then going for 3.5 kVA is a better choice.

For the ideal solar power, you will need around 6,500 Wp of solar panels (Jinko, JA, Longi, Canadian) and a 120A solar charge controller.

Battery choice (Vestwoods, Deriy, Pylonytech, Growatt)

Lastly, with your budget i see things coming together in a 3.5 kVA range, especially when inverter, solar panels and BOS are all factored in.

quote author=Ahyjo post=135077118]Hello experts in the house. I’ve been following all the discussions diligently especially the recent ones with regard to the lithium batteries. I am about to upgrade my system to be able to take a 1.5HP AC and also my 1HP submersible pump. Please I need your advice on the appropriate inverter to get ( both KVA (minimum required) and brand ) , the best lithium battery (14-15kwh) and CC (if the suggested inverter is not hybrid), and lastly the appropriate PV array. Thank you. As we all know these things don’t come cheap, so it’s better for one to do due diligence before investing in them, and there’s no better place to get appropriate information like here. Please advise me based on experience and not brand specifications.

My working budget is 3M - 3.5M
Kindly advice please.[/quote]

I have a different opinion!

Something to note is that when you add panels in series in range of 500-1000V cable sizes like 6mm can work just fine and this is also related to most residential and commercial projects.

HeavenlyBang:
Higher current means higher cable costs and higher losses.

There's a reason why electricity is transmitted at high voltage, not high current.

since this was fixed temporarily before when you had it disconnected, i will advise that you have a pv breaker and a battery breaker on the charge contoller so you can reset it everytime the error pops up.

BigDickProblems:
I’m really seeing this Felicity charge controller as being useless and overhyped. It’s really frustrating.

It allows input, the Loads, No of loads, hours of usage in day and night are what you are allowed to input your data

Slazim:
The spreadsheet isnt allowing any input.

I think maybe this could be a flaw in the new Felicity charge controllers.

BigDickProblems:
Yes I did.