₦airaland Forum

NiyiOmoIyunade:
So sorry bro! There will always be bad eggs like these whose wicked actions will want to make someone unnecessarily harsh on other good people.

Just see if you can get him to send back the real thing peacefully and subsequent transactions only make refunds as seller after you have received your goods back in perfect condition.

Your current model of trusting people and sending refunds ahead may be too good for the current Nigeria.

fernado56:
Hello House, I have been following this thread for long and i give kudos to all members for the enlightment so far, i want to Install a Solar System to Complement PHCN and Here are My Loads wattage Below , Please Kindly Advice on Nos of Panel and Batteries , I was thinking 800w, 40A pwm , and 4 Pcs , 12v 100AH, 24v 1.2/1.5kv inverter. Please all the expert kindly advise me .Also any reliable Installer that can give after installation service at ibadan.

Call/watapp 08117398294 for discussion. Tx
.'


Refrigerator watts = WattHours =60w ........ for 5hours...................300w/hr
Television watts = WattHours = 70w.......For 8 hours daily............ 560w/hr
DVD home theatre WattHours = 110.......For 7 hours daily............ 770w/hr
House lights led watts = WattHours= 65w... for 6 hours daily........... 390w/hr
House lights others watts = WattHours= 120w... for 2 hours daily........... 240w/hr
Computer system = WattHours = 65w....... For 6 Hours daily........... 390w/hr
Misc items watts = WattHours = 50w ..... For 2 Hours daily........... 100w/hr

Summary of WattHours required
Total daily WattHours required = 2750w/hr

NiyiOmoIyunade:
I checked online and the Yohako MPPT CC appears to be rated at input VoC 96v and max current 80a - this is probably the reason why your installer used a 2 panels in series config for you.

The challenge is now that this controller is mismatched for your application as you are using a 48v nominal system. MPPT requires some 'voltage headroom' to operate properly e.g a 48v nominal system will charge batteries anywhere from 56v to 62v (allowing for desulfation voltages) - at the panel side you will need at least 90volts to give sufficient headroom for the Charge Controller to 'boost' current and realise MPPT benefits - with 24v nominal panels, you need a minimum of 3 panels in series to achieve a useable MPPT voltage range for a 48v nominal battery bank - unfortunately, you will fry the Yohako at this voltage level.

Its either you switch to a 24v inverter and keep the Yohako as is OR you set your panels as 3 in series and change to a different controller capable of at least 150vdc e.g Chinco EP Solar/Fangpusun or the venerable MorningStar or Midnite Solar, Magnum e.t.c

As it is now you have an MPPT CC but operating like or worse than a PWM because it is not suitable for your application

You still have to ensure your panels face either South or West or East (some folks on here do North but I have no idea how that works) in that order of preference, your panel mount tilt/angle is relatively flat, no shading on the panels, properly sized cables e.t.c to be sure you have captured all angles.

But clearly, it appears your issue is a poorly designed/mismatched system and you will need some tweaking to get it right.

Xtfield:
Hello Guys, Please I need urgent advice. I bought a 850watts inverter some years back. Its still working fine. But now I wish to convert it to a solar powered inverter. I need advice on the capacity of battery that I need to buy (100ah or 200ah). I also want to know the capacity of solar panels that will be enough to charge nthe recommended battery. Thank you.

NoMoreTrolling:
Thank you K.k, bigrovar, zeestone99 for your input regarding the setup.

I will call the contractor back to see if he can change the setup to 3X3 instead. I just didn't want to stand my ground then, because as they say, no one knows everything. So I figured I'd trust the guy that has done 100s of installs.

Here is the charge controller he bought, the first one he bought spoilt, so he had to replace it with this one.

The max PV voltage is usually like 60 something, but as soon as you load it, the pv voltage drops down to battery voltage, around 51-55v depending on the weather. It just doesn't seem right for MPPT.

Thanks again guys, may this thread and all our endeavors continue to blossom!

NiyiOmoIyunade:
I agree with you that desulfators seem to work best when clamped on a new battery bank from day one.

Interestingly, I have a powerpulse 12v desulfator on my car battery as well and I am going on 3+ years now with that particular battery - again, car/starter batteries never really suffer deep discharge hence little sulfation on their plates unlike in a deep cycle battery application.

What I learnt the hard way now is before I commission any new batteries, I charge each battery fully to be sure they are all 100% charged, if time and client permits, I also load test each one to be sure of its initial capacity - this helps me to avoid premature battery failure and happy clients overall.

Indeed batteries are the weakest point and always give the most trouble and expense in any RE system - with the promise of Lithium ever so good now, I see light at the end of the tunnel.

On a lighter note, I noticed I am the only one who spells sul f ur and desul f ation American style

NoMoreTrolling:
hey, also when he was connecting the panels, he said he was going to do a 2 series/ parallel string.

okay, i think they were 250 watt panels, so he must have done, 2 series by 4 parallel.

The thing is, when he showed me the VOC for the panels, it was like 60 something volts, we are using a 48v inverter.

I told him that since we are installing an MPPT controller, he should do 3 series by 3 parallel connection, even if it means that we have to buy an additional panel, but he said that having a high VOC could damage the controller, even if the controller is rated for high VOC. He said on some sunny days, the VOC could exceed rated VOC and damage the controller.

I dunno, but I thought the whole point of having an MPPT controller was so you could get very high VOCs and step them down, so that on cloudy days, you would still make some power.

What time does your solar setup stop producing power? Is it still a bit light outside, or does yours stop only when its completely dark outside?

makavele:
It's actually installed in a spacious and airy lobby; but still get hots during peak hours,
I believe it is quite normal to be; but man, I don't want to take chances.

NoMoreTrolling:
Hey guys, good morning, please can someone tell me if we were duped.

We installed 2,000 watts worth of solar in our house, running on a 48v inverter and I have never seen more than 20amps being generated no matter the level of sun luminosity.

I even loaded a 1,600 watt vacuum cleaner one sunny afternoon to try and force as much amps as I could out of the panels, but still couldn't get above 1,000watts. Could they have mixed defective panels with good ones

Also, I don't get any power after 6pm. Is that how solar panels work I thought they kept generating power until it is COMPLETELY DARK outside.

pdozie:
Please - who knows where one can repair/fix SUKAM and G-Power inverters?

GavelSlam:
When the foreign missionaries built schools and hospitals our fathers and mothers benefitted.

Now?

Even on 20 times the minimum wage, a father would struggle to send his wards to the modern schools the church built.

Yet, you hear touch not... So nauseating.

zeestone99:
Hello house and fellow installers, contact me for your solar panels n other products at affordable prices. We also do payment on delivery.

Solar panels

Sunshine solar
300watts mono=58k
300watts poly = 55k
250watts mono=50k
250watts poly=46k
200watts mono - 42k
200watts poly - 37k
150watts mono - 29k
150watts poly - 27k

Other products in stock includes Canadian solar, suntech, flames etc

Inverters
Felicity
3.5kva/24v( 35amps charging current) - 150k
5kva/48v ( 30amps charging current) - 185k
7.5kva 48v (40amps charging current) - 340k
10kva 48v-
Other products includes sukam, vilpower, microtek, axpert etc

Charge controller
Ep solar 60amps - 129k
Ep solar 40amps - out of stock

Batteries (200ah)
Quanta - 130k
Long - 115k
Other products in stock includes luminous, genus, monbat, toplight etc

Call/watapp 08117398294 or email Info@monzpowersolutions.com

You can also like our page on facebook.com/monzpowersolutions

tziz:
Hello house, I use a 1.1Kva Microtek UPS/inverter and its working fine but my issue is this; the inverter doesnt hav a user interface display so i cant ascertain how much juice i have left in my battery bank. Is there a workaround to this? Maybe something i could buy and attach to display the Battery meter?

mcTrinity:
you have Epsolar 80A?

earthrealm:
THE FAN RUNS TRUOUT WHEN CHARGING IN MINE...BUT only comes on if the temp hits 65deg in inverter mode..
i think this is normal naau

Nielsek:
Please I'm in need of a complete solar set installation That can power My CCTV cameras 24hours, can anyone in d house help me with the watt rating of each of d equipment (devices) ...is there any expert or dealer in the house that I can contact through whatsapp?

darocha1:
Yes I need it. Ogbeni call me jor, are we just doing bizness together

darocha1:
In need of YOHAKO solar charge controller. 360volts 100amps

sensisosu:
Hello guys,

I need fairly used/new 250w or 300w solar panels and installation rails..

GeorgeD1:
gen2ty,
zeestone is your man anytime, anyday. he came all the way from lagos and did a marvelous installation job
at my abode here in warri. i'm happy to recommend him partly for his doggedness and also for his attention
to details. at a certain stage in my upgrade works, we hit a snag which almost got me discouraged but to
my greatest surprise, he and his team came up with a quick solution that moved the job forward in no time.

Delords:
You will not regret doing business with him and I do believe I can say same for you? No pun intended sir, it can go either ways.