₦airaland Forum

We are too backward. A 5yr old will use that drone like he is playing game in sanner climes. You can't keep doing things the same way and expect a different result.

NiyiOmoIyunade:
How much current can this HA12 move around on a sustained basis?

I measured the HA02 and while rated to move 5a balancing around, it typically did less than 0.5a - this I judged too low for practical use.

I see a benefit of this HA12 to serve as a basic battery monitor if it can display battery voltages as well as balancing current - gives a very useful indication of battery health.

I currently have a 24v setup with PV current reaching about 40A -45A per day. Can I introduce the HA 12. Since its rated to move about 5A around. Pls I need some explaination

Hi. IGA spider. I am proposing to do a 6 coaches after lintel for external walls for my secret roofing. Is it very essential to have some pillars for them.

olopan:
I believe there are Engineer and there are engineers

As a basic knowledge potential difference - P.D
potential flows from higher to lower P.D


For a PWM that works on pulse modulation, something slightly above the Battery voltage is considered the sweet spot.
E.g
18V for 12V
30V for 24V
50+ for 48V

Anything out of the above equals a system that is inefficient and poorly designed.

i just tire

I have seen lots of discussion on pv setups, 2S2P,6S2P....... I think such setups cant work for Pwm cc and simple inverters with either 12v/24v operational voltage.
I am asking this because i have come across a system like that the client said failed. I noticed pv was reading about 56v for a 24v inverter. Going up, is saw that 3pc of 100w were connected in series pv wires were corroded with whitish powder, cc was bad, batteries were overheating too and one was melting sef.

The client had to rewire the pv wire since they were badly damaged, buy new cc, change batteries, opt for a 12v system, and has enjoyed his system since then.

send a pic of the degradation you are noticing

Casemiro:
hi.

good day.

please what could cause solar wire to rust?
could it be the wire isn't good or it's from the Solar panel?

a panel i bought, the follow come wire were rusted (kinda like dust, maybe burnt.

I changed the wire, and used this 3 in 1 wire, but it started rusting (burning?) gradually.


I don't know if you have idea what could be the problem

abbeymighty:
Please I have luminous 850va hybrid inverter and I have 2(300wats) solar panel, will it work if connect it directly to inverter as I did not have money for CC now

Hmm. Noted

A few thoughts.
1. Why were the lights turned off?
2. Why were the cameras removed?
3. Why did the cctv footage available stop recording at 8pm.

A liar needs to have a very good memory.

You will know the truth and it will set you free.

Not everything that shines is gold

Guys i need Itel p33plus board
Lg xpower complete lcd
Quote me for price.
Wats app 070.344.88.630

Quote me if you have lg x power complete lcd

How much does a 24/36v dc sumo cost?

ojeysky:
If your controller can always maintain 24 to 27v output to the ups, I think it should be fine. Ofcourse gurus in the house may advice better.

if the battery aint totally dead, it might be better hooking them up to a cc so as to serve as a voltage limiter, eslse i am pretty sure you will definately fry the inverter and/or the controller in no time.

adrusa:
19KW of PV? I think it is flexing? Do I think it is too much? I can not say without understanding his use and motivations. But 19KW of PV is huge, it is easy to read waste into it. By the way, how much KWh does he generate per day? I have roughly 7KW for total independence from NEPA except for my AC.

I dont think any ever raised that issue because we understand the dynamics. Niyi does high tech installs for top notch class coupled with the need to having a feel of the service he renders.

If my system that demands i use a 100w fridge for 10hours everyday requires that i use a 2.2kw array. Then i wonder how 5000w consumption for 24hrs with good battery management will not require 19kw or more.

Note: for gel,agm batteries. A 200ah battery means that it can supply 200A in one hour theoretically but it doesnt mean that it will in practice. there is a discharge rate that must not be exceeded and must be followed in practice, else sudden death for the batteries

zeestone99:
How do you cope using it with fans.

When i used those modified, i had dc fans, but i dont use it anymore.

Let's try to educate some folks. Thats the reason we are here. Let's analyze niyi 19kw/19000w panel array. Is it really too much.

zeestone99:
I doubt you will get a pure sine wave.

of course not.its a modified sine wave.

truthbetold22:
Chest beating afonja.. empty vessel.. Because we are on Nairaland, some people will be claiming all what not.

Because it is Niyi now, none of u want to think with your brains, only with ur anus.. my opinion hasn’t changed. 3 inverter air conditioners, an inverter washing machine, an inverter microwave, TVs on energy saving mode, all bulbs as leds and u are down to 3000-5000 watts instantaneous at most..

Why then does anyone need 19k watts??

Uninformed fools

the talk has spoken itself. My advice is that you need patience and never rush. We are waiting for your analysis to cater for an off-grid scenerio , tell us the battery bank needed, the dod%, inverter choice, cc choices, etal.
We are waiting to learn from your wealth of experience.

truthbetold22:
Imagine ur list of accomplishments... very funny. We know u not.. we don’t even know if you have a wonderful wife or wonderful kids.. 500k in renewable energy .

The joke is on you boy.. You need to grow into a man and achieve proper things. Imagine calling getting married an achievement..

You must be really poor

chai your DNA must have written in FORTRAN. The person who did this to you no try at all. Let's move to the season 2. THE DICEPHER

ceaser:
Eeya. It's so sad.
Funny enough you could turn out to be one of my residents, that's how small the world could be. After all NL is a world of anonymity.

But you've been a great disappointment to the medical profession with your depositions.

Except those that may have been patient enough to decipher thru some of my subtleties on NL, not many will ever think that I have attained the highest level in the medical profession (on the clinical side of course). Yet I never tried to brag about it nor rub it in the faces of anyone.

Truly, as Barezzi opined, people in the west mostly mind their business. Such outlooks about life also come from experience and exposure, two vital things that is apparently lacking in your make up.

If you truly are a doc as earlier alleged, then I honestly think you need to do a deep introspect to know if medicine was really your calling.

Some things are just in the blood, and life might not be fun if we don't have some of this rare breeds you know. All you need now is sit back, relax and let's see analysis.

Topmost11:
Any seller there you can recommend sir?

CNN has one of the cheapest prices in the market. They are just a little after union bank, opp the main market. I"ll send you the shop no. Let me check my receipts. But shine ya eye o as ALABA boys concern,

ceaser:

Okay now I wantu "beef" you

Why would you live in a 12 hectare mansion when you and the family can manage a face-me-I-slap you 2 room apartment?

Does that not amount to waste of money and space? People can be wasteful sha

Let me have opposing view before I am accused of being follow follow

don't worry, i'll give you 2hectares for your opposing view. what a way to spice up the week

Topmost11:
Anyone having this, and price?

That cost less than 6k for new in ALABA. I advice you should just go for the 1000w with charger. Cost 15-20 in alaba . the choice is yours.

truthbetold22:
Oga shut up, stop sounding ignorant.. if you cannot offer opposing views, u are just a follower.. stop trying to sound like u know what u are saying. Simply dissect the message and not the messenger.

Poverty mentality ke u dere.. u think say na to post fantasies on Nairaland?

Oga that is looking for 20k businesses to start.

Complete slowpoke

O fe gbo bebe Oro abi? silence they say is golden, do not reply a fool, but you might need to reply to show him his foolishness.
Our histories in nairaland and other forums says it all. I do not have to brag here with a faceless moniker but atimes it is good to set matters straight. If i look for a 5k or 20k business to start means nothing at all and does not affect anyone.You should ask when was that and what i have made of it. That you went to med school in germany does not mean you should have no iota of common sense. Spilling trash all over nairaland and causing commotion up and down in various sections. Or is that what they thought you in med school? Referring to another as making stupid purchases? You obviously have low self esteem and have terrible language manners.
If i have a 20k business and it helped my get married with wonderful kids, have a house and other investments, and can also make 1/2 a million purchase in renewable energy, while my bsc degree from oba awon university rots in a file there. Its been a wonderful 20k business then.
Grow up boy.

I had quite some catching up to do. Lets put all the rant of this fellow to rest. This poverty mentality is mind boggling . How does it affect anyone what others spend their money on? An empty drum they say.....
This guy is searching for cheap popularity. We all have history on nairaland, when you check some peeps own. Then you understand where they are coming from. Am off to sleep with my lovely family in my 12 hectares mansion. lol. Ehnn
Some will be sad that i live in a mansion like that o.

ceaser:
That AE thingy is somehow. An order that I've placed for over 3 weeks has remained unshipped till now.

I've had to open trade dispute for some other items that have not arrived and the purchase protection had ran out.

I understand their constraint, really and even I myself will wanna be careful about getting stuffs from there after I experienced some episode of flu around early January when I took delivery of some (like 12 large parcels) items. I didn't have a face mask on or used gloves. The only conscious IPC protocol I observed was to avoid touching my face with my hands thru and also made sure to wash my hands when I was thru with opening the parcels. But a week later, I experienced the type of sore throat and catarrh that I haven't had in a long time, even with serious headaches. I was scared and literarily avoided families and friends for the 10 days that I had that flu.

It may just be the ordinary flu that comes with the hash harmattan but hey, I had reasons to link the parcels to the flu one week after, in my own mind o.

I read that parcels from China being a vehicle for the transmision of the Covid-19 is very remote, but I won't take chances either.

this viruses are spreading massively o. I am halting any orders for now. Thanks

Dkev:
dear solasola and truthbetold, what the both of you said is unfair. never has anyone on this forum with a large array questioned or insulted anyone's small array/system. these older guys are usually very willing to help others. if you haven't seen houses that need such systems, I have, but still, that is not sufficient reason to basically insult their choice of an electricity system. please do not drive these men away from this thread with your bad attitude. they try out new innovation with their system which gives us the courage to try it out on our smaller systems. And please, truthbetold, stop with the foul language, it makes you look bad

haba, am I being quoted out context? You thoroughly got my point wrong. That I don't have the funds to achieve 25kw or go lithium, I would never scorn or beef someone who can. We are learning from their experiences. And if I made a reference to it, its because I am wowed by it.

mctfopt:
I agree with ojesky, you are better off with an MPPT SCC. That way you get to maximize your 2.2kv PV array's yield. Welcome to the green club

Yes, am doing that asap

ojeysky:
Why not MPPT, with such an array I suggest you use MPPT controller instead. The performance will shock you when compared to pwm.

I am ordering one via aliexpress soon. Thanks