₦airaland Forum

HeavenlyBang:
I'm actually very curious about this. What happens if your PV power supply exceeds the CC/Hybrid power maximum pv power rating? On a hybrid inverter, for example?

Let's say you have a 3KVA hybrid capped at 1440w (60A*24v). Do you also need to to limit your PV output to that?

Cc: isangjohnson

The danger is when the panel arrangement exceeds the VOC of the CC/inverter. Some ppl say u can still go above the max panels seeing as there are many over rated panels but never exceed the VOC of ur CC/inverter.
Dunno a 3kva thats capped at 1440w. Even my 2kva12v hybrid can still take up to 2000watts of panels wit a max VOC of 400

gifted65:
Installer said 2.5kva inverter requires lots of panel

Its ur loads/batteries that determines it moreso since u arent using an hybrid inverter

gifted65:
Price is high o, currently i have a 24v system, though using 2 100a croc lead acid battery which atleast works with our qasa fan till morning, but is it possible to buy one more 100a battery to add to this my battery bank so we can watch small tv for 2 hours at night because omo tubular battery price na die oo, 320k for one.


My setup is 6 (300 solar panel)
2.5kva pure sine inverter
Powr mppt cc

Arent ur batteries undersized for this ur panels?
The max panel watts for ur powmr is 1440w so ow did u combine urs?
Do u only run a fan on it? Wondering why it wont carry ur tv unless its all those heavy power consuming type

isangjohnson:
If you can wait and pray for the current exchange rate to persist till ending of next month, you will buy 100ah 24v lifepo4 battery at about 350k

24v100ah abi 12v100ah?

isangjohnson:
FOR SALE:

280ah 12v 3.58kwh @ 700k.
160ah 12v 2.01kwh @ 430k.

Pictures pls

Trippledots:
Anyone knows any 1.5kva hybrid inverter with Mppt controller I can get asap.

Please recommend!!

The sms inverter has a 2kva/1.6kwh hybrid inverter... 80amp mppt charger but then u sudnt expect much from it. I get abt 400watts with a 900watt panel array so dunno if its my panel tilt angle or the mppt efficiency

BlueStripper:
Hi Dr,

Thank you for calling my attention to this. Please I have attached a screenshot of the solar charging parameters on the body of the inverter.

Kindly advice.

This wont help. There's a place in ur manual where its written ow to connect the panels and maximum it can take

Edrizz:
You didn't indicate whether your inverter is an hybrid or not but pertaining to the question asked, u need 475watt x 4pieces to charge to full and additional 475watt x 2pieces incase u need to power some appliance in the afternoon

How did u come about this calculation without knowing what loads he plans to power with it. I av a friend with a 24v system using 1800 watts of panels and he powers 2 freezers during the day and still has enough to run his other loads till the next day. The poster's load might not even be up to my friend's own.

BlueStripper:
Good Morning Bosses,

Happy Easter and thank you all for the advice the last time.

Update on my decision and progress.

I bought a 3kw Felicity hybrid inverter and 6kw Lantan LFP battery.

I also ordered 8pcs of 625watts Jinko Panels from Fouani.

Cables: 6mm dual core.

SPD protectors (AC and DC).

My journey to full Lithium begins in a few days.

I am using large arrays for high yield as I intend to run two fridges and an inverter AC during peak hours.

Please advice on solar array configuration. Should I use 4S4P?

Pls read ur inverter manual well, theres a reason for it. If I'm not mistaken, there's a limit to the nos of panels u can connect to it. I think 3000watts or less. Pls confirm before connecting ur panels seeing as u av made ur purchase already.

TechGeek777:
If it's Jinko 625w sold by Fouani, the VOC is 56 .55V, then I won't advise you connect all 8 panels in series as the total voltage will be (452.4v) which is more than max VOC of inverter 400v.

Max panels you can connect is 7 panels, or 6 panels to be on safe side.

But is the Voc of panel <50v, you can connect all 8 panels in series.

You also need to get AC & DC MCB + Over Voltage Protector, @Zeestone99 sell both devices!

Thank you for this. Was wondering how some came about advising him to series the 8 without asking for the panel's VOC and ensuring he didnt exceed the inverter mppt voltage. Lets be cautious giving advice here as some of us hold on to them dearly. Only few wud take still make further research outside here

kristien4:
Location is benin city. It does not come up at all wen connected to battery. It only comes up wen connected to solar pv/ nepa light. Works via this too sources but does not detect battery. Everyother thing works fine. Displays/blinks "Bp" on the inverter screen. Its an ipower max 3.5kva inverter.

Av u tried disconnecting and then reconnecting the battery? If this doesnt work, then likely inverter battery point is damaged and wud need repairs. Most inverters usually av a reverse polarity protection which sud av kicked in with urs.

adibo:
Good morning house. I want to buy a Mercury 1.5kva hybrid inverter, a single 220ah battery and two 420w solar panels.

Will this setup be OK for charging of phones and laptop, one fan and a fridge (the fridge will be on for maybe 2 hours in the daytime during float charge)?

More importantly, kindly let me know the other things I will need to buy along with the inverter like surge protector, wires, etc and I will appreciate if the amount for each of them can also be put along with it. Thanks

U need to ensure the voc of ur intended hybrid inverter is more than the solar panels or else u wud av a disaster waiting to happen.

Valto:
lolz . I always try my best. thanks
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Welcome back boss

Uniquewise:
It's the circuit breaker.
Two pole type

What's the size of ur inverter and configuration/size of ur panels? The 63amps might still serve u. This ur Schneider is looking different to what I am used to.

Pls a friend has this fabricated ice block making machine and he said it comes with 3 compressors. Anyone with such and has an idea of ow much current it draws? He wants to install an inverter system for it.

Uniquewise:
Advice needed!

The DC component of my solar installation has been sparking and melting of late. Sometimes, it stops charging altogether, until we reboot the system. We were told to replace the unit, which is 63 amps. Now we are contemplating getting the 100amps or 123amps...is this ok?

Again, what is the best brand to go for; the current one we are using is Schneider but it seems fake. What better brands are out there?

DC component of what? Is it the breaker or inverter?

Anyone using this locally fabricated ice block making machines? What's the power consumption like? An uncle of mine wants to design a solar system for it

Sultty:
what u two are talking about are 2 different things, that is if u want to go into ice block making business then this type of ice-maker are locally fabricated and if it uses Inverter.. It does not use inverter. It has to be used where electricity is almost constant

U are the one who's not getting my question. I know it's fabricated which is why i need a user to give me an idea of the current draw. There's no appliance that cant work with inverter, its just abt using the appropriate size of inverter

Jagznation:
This is the freezer ideal for making ice blocks here in naija,i think it's constructed and can make about 60 ice 🧊 blocks in about an hour or so

How many compressors does it have? Any idea ow much current it draws? A family friend wants to install an inverter system for his which he said uses 3 compressors so want to know its power consumption.

jidobaba:
Honestly I think you should also Google this or at least post on well-trafficked solar DIY forums. Much of the information here lately is not rooted in any science, just conjecture. No offense.

U cud give ur advise without disparaging others. Everyone's here to learn.

emmaniche:
@6x300w
Parallel connection will give me
31v 48amps.
2s3p will give me
62v 24amps
3s2p will give
93v 16amps

Am a newbie, please which option is more favorable.
Pardon any error u might notice. Thanks bosses.

A 3s2p would be ur best choice. If u jad 8 panels, 4s2p would be fine seeing ur max pv voltage is 145. This wud even mean u use smaller wire guage from panel due to the lower current.

emmaniche:
K. Actually have a 60A zinox mppt.
U mean it sud be 2x31v in series and parallel the 3 sets.
Correct?

What's ur panel specifications? Voc and Vmp? Imp and Isc? What's ur mppt max pv input and volt?

emmaniche:
Mine is all parallel. 24v. What part of Nigeria are u?

That's what's causing ur low yield. You are using an Mppt not a pwm so why parallel all? Who did ur installation for u? For the powmr which i think u are using, max mppt voltage for 24v system is 105v so for me using 4 300w panels with pmax of 43v, I did 2 strings of 2 panels in series and then parallel both. U need a higher voltage input to enjoy ur mppt.

emmaniche:
I think its a region or amount of sunshine.
Have similar setup and the max I've gotten this period is 22amps.
Just myv2 cents.

How many volt system? How many watts from ur panel? I have a 24v system with 1200watts of panel connected 2s2p and i get btw 700 and 900 watts using a 60amp mppt.

Drgreatone:
I have an ebook I wrote on this topic and its free.
To get ur copy, send a WhatsApp message to 090-280-3 5521

Still available, free consultation for first 10ppl (time limited).

bigsecsyde:
Good afternoon house, I have a 24v set up of 2*250ah Luminous tubular batteries, 45A felicity Mppt CC. I have 300w * 6 solar panels (just ordered 2 more panels and will install by weekend) mounted on the roof and at peak period I get like 600w, 25ahms on the Charge Controller. Am I getting the best out of the 6 panels with the reading reported above? if not, what do I need to do to get more from the Panels. Thank you.

N.B

The panel charges my former 200 ahms battery to float everyday with load but it hasn't been able to do same with the new 250ahms battery with the same load as before.

Ur solar harvest looks poor, 600watts from 1800w panels seems low. Instead of adding panels, u sud find the fault first. How were the panels connected? Is it even facing the right direction? Is it exceeding the max pv volt of ur charge controller? U are using bigger batteries now which wud require more charging time, than the previous 200amp battery, depending on ow much u discharge it.

jasp12:
Thanks for the advice, so any downside using solar without battery?

U need battery connected to it regardless. At least for the sms. Tried it and it kept going off anytime the solar output went low/off

Dam5reey:
I typed 3.5KW because I use one.
not Glorified 5KVA which is 4KW... What's the difference here?
He will be running the AC during the day for only a few hours.
Also, there would be losses due to No load consumption on 5KVA.

I am not doubting you. I just like to ensure my inverter's continuous load isnt more than 30 to 40%. With his load of over 1800watts, thats 50% continuous load not including if any appliance has a surge rating

Parser:
Why not go for a 3.5KW SMS sunmate hybrid inverter. Probably with a 2Kwh battery bank. And and let's say a 1.5KW or 2Kw solar array. Might be best value for money as you can expand.

Other perks: DC breaker, transient protector.

The hybrid inverter comes with it's cc. Cost around 350K.

Like play like play 850 don go, except prolly u go do without battery...just dey flex am for day time. Keep in mind, it is better to do DIY that you can easily expand on without selling parts.

Open to corrections.

All the best.

That sms inverter price u quoted, when did u cost it? It was 440k abt 2 weeks ago.
The 850k might just be barely okay for a 12v solar system with todays market price

Dam5reey:
You can start with a 24V system.
I already have a 60amps MPPT (Powmr).
How many watts of solar panels will take? 1600W
What KVA inverter will be fine for it? 3.5KW
How many ah of lithium battery? 200AH or 5KWH.

OR
A 48V System
I already have a 60amps MPPT (Powmr).
How many watts of solar panels will take? 3200W
What KVA inverter will be fine for it? 3.5KW to 5.5KW
How many ah of lithium battery? 100AH/5KWH to 200AH/10KWH

Above is the minimum, you can do as the budget permits you.

With that load, a 5kva wud be his best choice unless he's getting a tier 1 3.5kva with actual capacity that can deal wit running 50% continuous load.

icjunior:
Will it be detrimental to my batteries (2*220ah tubular,2.5kva smarten,2*475w(produces 700-900w at peak sunlight)) to run a 1hp dual inverter AC on it during sunlight peak hours??

U sud consider adding to ur panels. That 700w might hardly power ur AC not to talk of charging ur batteries unless u dont need the charging part.

Drgreatone:
Pls ogas in the house... For a 48v hybrid system using 4 220ah tubular batteries, whats the maximum charge current setting on the inverter? Was thinking 20amps was fine but someone advised I can go as high as 40amps. Wont this damage the battery in the long run?
Then wit the recent postings about high current mppts, does it mean a 60amps mppt wud pump 60amps into the battery connected under optimal conditions? Powmr for example only has settings for float/bulk voltage and type of battery but none for max current? Should I be scared? I av 1200watts of panels connected via it to 24v tubular system.

Pls still waiting for reply to my questions 🙏🙏🙏