₦airaland Forum

Jefferyzz:
I had to check back on our conversation. Can you snap ur CC screen where d amps is displayed. I want to know if the 9a is the panel output or your CC's output

isangjohnson:
Go for 48v 230ah battery.

isangjohnson:
I saw 149k for 550w Jinko pv when I checked their website today.
Do you know any good 550w tier 2 pv and 3kw 24v hybrid inverter with higher Vds [/b]I could recommend for him?

isangjohnson:
My friend wants to purchase 4 pcs of canadian pv 300w at 65k in alaba market.
I wanted him to buy 2 pcs of 550w Jinko pv from Gennex at 149k each, buy 3kva 24v hybrid inverter with higher Vds and go for 2s1p.
I hope he won't fall into the hands of stiker pasters.

drered:
Thanks for your response - Never heard of the Valto brand, is it any good? and is there a reason why you'll chose tubular batteries over lithium in this scenario?

I could go for the 5kw but my intended load rating is not a lot - A laptop, CCTV with 5 cameras, 3 fans & 4 energy saving LED bulbs. Focus is on the power reservoir really.. I am also now skeptical about the Growatt brand after reading @viperVIP 's experience with the particular model.

Copy you on the panels also, thanks.

What inverter and battery brand & model would you recommend?

easyyoke:
Why would you advise someone to sell their solar panel? Panels last for 25years and you can continue to add as many as you like to it provided the panels are thesame voltage panels. There is no reason to sell panel. You are even advised to overpanel your system(i.e use more panel than you typically need if money is not your problem). That way, days sun does not come out well, your overpanelled panels will fill in the gap. There is no reason for him to sell his panels. All he needs is a good installer who knows how to use 2s2p configurations so far the panels are thesame voltage

drered:
Thanks a bunch for your response - I am thinking of just getting a new setup - I have narrowed this down to 3.5KVA 48V Growatt hybrid inverter and 7.5/[b]10KWH 48V Growatt Batter[/b]y and integrating with the existing 4 350W solar panels. I would just sell my current Yohako inverter, mppt charge controller and 2x220ah luminous battery.

FEGEITOK:
There is another issue to address.

I recently bought Jinko 545 watts panels.

The datasheet states those values for two states STC (Standard Test Conditions) and NOCT (Normal Operating Cell Temperature) which of those values should he use?

isangjohnson:
Please, where can I buy 450w era pv?

osayuwamwen:
U are not a serious business person, u should be flooding this thread with prices of yr product, even if price fluctuate u should update yr list on a regular basis, this tins may not be as expensive as it is made to believe pple can be a bit more patient and save more to buy this lifepo4 battery wen they can compare prices, put the price bro if there's an increment still update for this thread nor get that mindset say serious buyer go always inbox u for price that na old mentality

isangjohnson:
Boss in this part of the country with a porous/non linear system, theory works for about 90% and practical works for about 10%.
Your calculation works for linear system where virtually everything is up to the standard, it works also for diy lifepo4 cells coupling.
We kept preaching the gospel of battery capacity test in this forum but unfortunately some people don't have time for it
Let the guy carry out capacity test and let's see if the 220ah battery will be up to 180ah.
When I was using 4 pcs of 12v 230ah tubular batteries, I derated them to about 160ah each and discharged 30% from them. I later sold them after two years of usage and I'm very sure the batteries will serve him for the nex 3 to 4 years if my usage method is applied.
Going solar route require a lot of planning and awareness. Anyone that can't give lead acid battery baby sitter should move to lifepo4 battery. The price different is very small......
Again, day time loads of about 1kw with the stated pv array may not have been given enough room for the effective charging of those batteries which I'm suspecting to be tubular.
I suggest he charges those batteries to float first and allow them to rest for 1 to 2 hours before testing each of them to be sure they are all in good condition.

finebois:
Solar Inverter expert in the house, help me out.
I just did a solar inverter system of 5kva. 4 batteries (vitra 12v 220ah), 10 300w canadian solar panel. To carry my load bulbs, tv and 800W freezer.
Now here is the problem.
If I put on my Freezer, the inverter won't use more than 30-40 muns before it start showing low battery.
If I off my freezer and use only bulbs and charge phone, the inverter will use like 8 hrs.

What could be the problem. We have tested the battery and it shows accurate readings.
Please help me. Ejoor

Valto:
these are coupled battery with different bms ratings and accessories, price can't be static. real serious buyers DM on WhatsApp or telegram to discuss their preferred order. this month alone,i have discussed and executed order of over 15 clients from here. so if not interested,simply ignore my post bro

Olarewajub:
Attached is a picture of my Charge controller spec.

Panel: 4 panels (190 watts each)

Battery: 2 tubular Batteries (220ah)

MPPT Charge controller: 40A

Inverter: 24v

I want to get an addition of two panels (250-300Watt).

Would this be too much for the controller?

Lagosbynature:
This is my current setup

1kva 12v Mercury Direct Inverter/UPS

12v 100ah Battery

I charge it from wall socket via phcn/gen.

I want to switch to Solar and I want the solar to power my load during the day while or after charging my battery.

Heres my load

1. 170w laptop
2. 60w tripod light
3. 24watt fan
4. 100 watt for miscellaneous (phone charging etc.)

Note all of this will not be on power at the same time.
Max, 1,2 and 3 load will be on power, making 254 watt max load simultaneously.

Q1. Can a 300-350watt mono solar panel power this during the day while charging my battery?

Q2. If the solar panel cannot power 250watt load, will the load fall to my inverter and battery whilst they continue recharging from solar?

Q3. How many amps charge controller will I need?

Note: The mercury direct inverter/ups has inbuilt charger that charges my battery when plugged into a wall socket for phcn/generator

fatherbeeman:
Pls i need your input: i want to buy 2.5kva/24v inverter pls recommend for me budget 150- 160k.,
Also i want to buy 2 inverter battery for the 2.5kva... budget 300k pls is there any good battery of 220ah for that price or i should go for 150ah battery (luminous).
Thank you.

luvablesam:
What's VOC? I don't understand. I am a novice

luvablesam:
I need some advice:

So I have a 40AH LIthium battery, a 150watt panel and a 30A PWM charge controller.

Is it safe to charge the battery with the panel and chargevcontroller permanently?

Justice629:
I experienced same issue when I newly installed the inverter 2yrs ago, pv wouldn't power the loads without batteries or grid connected, nor power on the inverter when it's off due to LVD.

Imagine what will happen to those fully off-grid without generator when this happens.


I conclude it was a Chinese dubious advertising of over stating features while under delivery.

Besides that issue the inverter has served me reliably for 2yrs now running 24/7 without issue.

Imported 3 more to install in my office and now hoping the pv batteryless features will be functional😁 now that I know better.

FEGEITOK:
You asked good questions

jonescosmos:
Nice Question Bro.

This is because the 16KW I had was from JustStandout (A dealer in Lekki, Lagos), and I noticed that once I go Off-Grid the Inverter could not handle load above 12KW, I did everything I could but no avail. I contacted JustStandout, they could not help, they kept upgrading the inverter from one firmware to the other. I contacted Deye Support and they upgraded the Inverter to the Latest Firmware and the problem continued.

I disturbed Deye Support so much until they asked me to open up the inverter and send pictures of the PCBs inside the Inverter.
I did exactly so and I discovered that the power board inside the Inverter is of the 15KW US Version which is the SunSynk 15k-2P and has a UPS Backup load power of 12Kw Max. Which was why I could not go beyond 12Kw while Off-Grid.

The Inverter was sold to me as the 16KW EU Version which has UPS Backup Power of 16KW only to discover that the PCB is US version. It was clear to me that either JustStandout has scammed me or they got scammed by their supplier and they passed it on to me. Because I engaged them after this discovery and they sounded not to have any idea about these technicalities.

After weeks of words battle with them, I decided to place an Express Order from Deye for the 2units of 8KW EU Version which each has a UPS power of 8KW, because I didn't want to fall another victim to the 16KW Scam.

I received them and deployed them as shown in the picture and then I decided to ship out the 16KW to my house in the Village to be deployed later this year. Since I don't base there. At least no yet. hahahaha

As for the CC, I use the inbuilt MPPTs. Although I miss the inbuilt 3x 290A MPPTs of the 16KW because the 8KW has inbuilt 2x 190A MPPTs each. The 16KW starts sucking solar energy as early as 6am as is capable of guzzling everything that looks like energy from the panels, while the 8KW waits till around 9am at times to start picking up solar energy and cannot go beyond it's 190A capacity.

jonescosmos:
Hello fellas, longest time.
Who remembers this my inverter room?
Well, this is what it looks like right now.

2x 8KW Deye Hybrid Inverters EU-Version.
4x 15KW Felicity LPBF48300 Battery Packs.
24x 600W Canadian Solar Panels.
10x 540W Felicity Solar Panels.
Plenty Automations.
ETC.

Enyinne:
Oga if u want to talk to me , just do it straight up ,no dey go corner corner

Valto:
Large quantity of premium brand new grade A 100ah lifepo4 lithium cells with intact QR code and actual capacity test done on all is available
we can also couple in a customised foreign metal box, 125A circuit breaker, Bluetooth bms as
12v 100ah
12v 200ah
12v 300ah
12v 400ah
24v 100ah
24v 200ah
24v 300ah
24v 400ah
48v 100ah
48v 200ah
whatsapp 08020574628
we can waybill to any location in Nigeria

temi4fash:
I dont use PV yet...

I intend to add that later, we use NEPA/Gen for the charging right now

temi4fash:
200AH

is there anyway to resuscitate it?

temi4fash:
So what do i do?

What is the battery chemistry?

Do i get an external charger for it?

temi4fash:
Hello Sirs,

I was not in the house for some days, i noticed my inverter charged my batteries up to 28.6V when still connected to NEPA.

Immediately i put it on load it dropped to 26.5 and rapidly up to 25.9V and stabilises there and do not drop rapidly again.

What can be the problem?

Olarewajub:
No, my battery does not float daily due to the cloudly weather here.

My load is pretty low. Highest consumption comes from my double door refrigerator.

Olarewajub:
Panel: 4 panels (190 watt each)

Battery: 2 tubular Batteries (220ah)

MPPT Charge controller: 50A

Inverter: 24v Addo Inverter

This serves me 24 hours off the grid

Olarewajub:
Thank you very much.

I got the fan for 44k, though it is 42k on Jumia.

Concerning the Solar setup, I would need to do some confirmations.

I am still new to the PV system, especially the calculations.