₦airaland Forum

bodeface:
Happy Sunday to everyone!
Please, I need help from experienced installers, users and DIYs.

I am planning to upgrade my inverter system, am looking at buying a 5KW Hybrid inverter (with solar DC input of 450V minimum), I have read of so many brands, I am trying to leverage on the experience of the forum to know which brand and model is considered stable, low idle consumption, compatible with lithium battery (future plan), low failure rate and the cost is within N250K - 350K (slight increase above budget could be accommodated for value and reliability)

Experienced seniors, pls help with brand and models based on experience, these toys aren't cheap anyone, one has to choose wisely. Thanks for your suggestions.

Dam5reey:
Basically it depends on number of cells, however you may also use Vmp of the panel to determine the panel voltage.

17V to 19V Vmp is 12V
34V to 38V vmp is 24V
These are most common panels

Gr8teejay:
Good afternoon all. Please what is the highest wattage monochrystaline solar panel one can get that is 12 Volts?

samnaija:
My taught exactly, he should beef up his solar panel generation, and switch off the grid meter. I don't on my grid meter at all, unless the weather is very bad..

ojeysky:
Some of us just decide to leave a tiny bit occasionally....So unless the cells are not balanced if they are up to the rated capacity then 12.5kwh out of 14kwh should be a fair DOD

tolukemi:
Hello everyone. Please can you help me critique this quotation (parts and cost) I received from an installer? Background: I am looking to go off grid as much as possible. I need to power the following:

1. lights
2. Four ceiling fans
3. TV with decoder
4. Refrigerator
5. Chest freezer
6. Water pump
7. Possibly an AC in the future

Here is what I have been quoted:
1. 5KVA/48V Lento Inverter ₦500k
2. Four 220AH/12V Lento Tall Tubular Battery ₦190k each
3. Battery rack ₦19k
4. 2.5mm cable (15m) ₦1.1k/m
5. 60A Adjustable voltage protector ₦30k
6. 32A AC breaker ₦3.5k
7. Two Breaker enclosure 4-way ₦4k each
8. Ancillaries (Trunking pipes, tapes, 100A knife switch, flash bands, sealants, bolts & nuts) ₦29k
9. Ten 350W Bestcom Mono-crystalline solar panel ₦102k each
10. 60A 48V MPPT Sun-Extra solar change controller ₦155k
11. Four 63A Chint DC breaker single pole (for solar) ₦4.5k each
12. 10mm cable in meters (for solar) (50m) ₦1.4k/m
13. Four Solar Aluminium fittings ₦16.5k each

Thank you in advance for your help.

nnadychuks:
I just Dey pity ur batteries…

mctfopt:
New fear unlocked - "Beware of phone chargers"

Sapiosexuality:
The terms you guys use. The more I stay to read and understand the more I get confused. It seems like every device has more than 10 different names it can be identified with.

dollarnaira:
True

dollarnaira:
@isangjohnson

1m ?
As in 1,000,000 naira?

Na basic appliances o

If im com add washing machine, freezer, blender nko?

Na 4m im go go find oo.

Joke apart, It is way too high for such small loads.

longyemi:
A TV, 80 watts
Decoder
Sound system
Ceiling fan

Those are what I meant as basi.c home appliances.... Thanks

longyemi:
Please House,

I need a complete solar system and inverter to power basic home appliances during the day and can just go for lighting and fans during the night.

Please I wouldn't mind to get to know what they will cost as well.

Thanks in advance

luvlyoracle:
Its meant to be 28.8
I feel i am still missing some juice

Jefferyzz:
Nobi dis type?

Jefferyzz:
E dey AliExpress

mank1234:
There is improvement in communication by Selina Li and Colin Deng of Sehnzhen Deriy. Their service is good and they handle shipping and clearing unlike others on Alibaba.

My cells were prepared even before I made payment. Hoping when it arrives it will be well balanced and the quality will be excellent as others have testified previously.

Obnoxious2001:
For the shipment, do you have idea what is the range of cost and what method of shipping/logistics Comp. Is used

bigrovar:
That is a very old inverter from a company that used to be one of the biggest inverter brands from India (before they went out of business) I was actually my first ever inverter and I had nothing but good things to say about it. It is very simple so expect no bells and whistles. It however gets the job done without issues.

The things I liked about it include
* Efficiency. I had the 1.6kva inverter and it used just 24w when idle. This is relatively low for an inverter of its class
* I can charge the battery when the inverter is off, I found this feature quite neat as it allowed the inverter to charge the battery even when it is powered off, It can also pass through from the grid to inverter load when it is off.
* it has temperature-controlled charging. The inverter has a temperature probe that can be attached to a battery and used for configuring temperature-adjusted charging. A very rare feature for an inverter of that class
* The inverter has built-in "UPS" mode. This feature allows it to have very fast transfer times between grid and battery backup (not more than 10 ms). This becomes useful if you have desktop computers or other sensitive equipment behind your inverter, it ensures you don't face a restart during power transfer from the grid to inverter battery backup or vis visa.
* The inverter is generally very rugged. I used it and sold it off and the person who go it also used for for a very long time. It is a very simple inverter but is built to last.

The limitations of the inverter include
* Slow charging and generally limited charge capabilities. the inverter can only do 15A charging and the charge voltage and time is not adjustable. It has some presets like AGM and Tubular.
* Limited surge capability. The ability to use the inverter with inductive loads is very limited. The inverter can not be able to meet the surge requirement of large appliances like freezers and water pump
* Not so good-looking. The inverter is not the most good looking especially when compared to Chinese inverters. It has no wall mount option for example.

drizzypat:
Please how much can I get 5kva felicity inverter

FEGEITOK:
N1,000.00 gives you 13.6kWh.

I am sorting out my panels next working day.

NiyiOmoIyunade:
I agree with you!

As you may know and I have said several times on this forum, I am not a fan of flooded batteries and keep wondering why all the rave about them - perhaps it is their perceived longevity and 'ruggedness'

I would take an AGM battery over flooded or Gel if I had to use lead acid and when I said a regular 12v 200Ah battery would take 40a - that is definitely AGM or Gel and not flooded.

I understand the point about not charging flooded faster than they can handle BUT I wish to call attention to a feature on most decent CCs that allow you to cap the amps the CC would put out - so you can still have your large array but limit how many amps would be used for combined charging and loads - especially easy to do if your day time loads are fairly constant but a bit harder to find a sweet spot if day time loads will vary a lot.

By way of preaching the gospel there is a feature in the Victron ecosystem called DVCC [Distributed Voltage and Current Control] - if you activate this feature you can set the 'Maximum Charge Current' specifically - so in my system I can pull 12kw easily from my solar panels and allocate only 7kw/140a at ~51v to battery charging with balance of energy going to the loads - as the loads vary, the MPPTs will optimise the solar production to service the loads but maintain a constant charge amps output to the battery.

Beautiful feature and these and many more features can be modified programmatically pretty easily too in the Victron ecosystem.

All the more reason why people should port to Victron or systems that offer these value added functions - the Deye inverters have this feature but a bit more rudimentary and not as flexible.

Thus endeth my sermon, and may the Good Lord bless the hearers of His word and prosper both them and it! Amen

vta2008:
Abeg no vex how do I calculate the recommended discharge rate of my setup? It's a 5.5kva 24v inverter with 4 pieces of Hausstrom HS-22043 12V 220AH Tall Tubular Battery. I don't know the C rating of the battery as it's not included in the package.

The discharge rate is per hour abi? Thanks

FEGEITOK:
Time to finally get my solar panels and charge my batteries from that as a primary source and no longer from discos.

NERC has increased tariffs again.

Try to buy electric units and you will get my drift

bigrovar:
Many marketers/distributors copy and paste most don't even have an idea what a charge profile is. Back in the day, I wrote engineers at Luminous India for the correct charge profile of their tubular battery and they came back with the usual 14.4-volt absorption. I think Niyi was spot on when he said they recommend a low charge rate for their batteries to ensure longevity at the expense of capacity. I personally used 14.6 for absorbing my batteries and 31v for equalization once a month. 4 years on the batteries are still in use (with a different users who is still my friend)