₦airaland Forum

Interesting take Saipro. Truly, to each his own.

Yup, I do. Where ya number?

ojeysky:
Lol.....I still have the CH4 that is still in its unboxed status if you want.

Chai! Just when i don gather the money finish

ojeysky:
Sold

NairaBaba, I don nearly exit when I read say you use PLC.
Arrange chairs make I rush bring very chill beers...

But that PLC na overkill o... ojeysky has implemented something similar using sonoff basic.

Please go ahead and post your ladder diagram.

You don do make i spill my satchet of powdered beer

Kaxmytex:
The gods really enjoyed what they see, if not dem for don strike am..

If they are okay with it, wetin concern priest, wetin concern lawyer, wetin concern judge for this matter...

contease,
You will need to explain what you're really trying to achieve.
No need for whatsapp, as all ya issues can be resolved here.
We have over a thousand years of collective competence in renewable energy on this forum.

Thanks Niyi and ojeysky
Option B it is then.
I already have old laptop chargers lying around, so what i need now is a cheap weather proof IP65 PWM CC.

NiyiOmoIyunade:
...el cheapo PWM CC sitting around unused and happy to be commissioned for this task.

I plan to do something similar on my genset starter battery (12Vdc 7Ah) to keep it healthy and charged as it runs once a quarter.
Options:
A. Get a Victron Orion 48v to 12v DC/DC converter and a timer to switch it on twice a month for 30 mins
B. Get an old laptop charger and connect it to the pv input of a charge controller. The same timer will switch on the laptop charger as above.
C. Replace the genset starter battery with Lithium equivalent and charge once a year.
D. Replace the timer switch above with a Victron BMV 712 from ojeysky and switch based on SOC or voltage.
E.

Any more suggestions will be appreciated.

@ contease
1. You can connect your proposed battery charger to the DC bus

https://img.youtube.com/vi/JW-v8PNx2C4/0.jpg

The bus bar on the left carries the batteries, then all your dc loads (Inverter(s), CC, "your proposed dc charger" etc) are on the right bus bar.

2. Yes, you can connect a different DC source to the charge controller PV input to deceive it. As long as you don't exceed its maximum input current limit and voltage.

3. Post it here.

contease:
...I already have my idea sketched waiting execution.

ceaser:
Lol. Bàbá wan hit jackpot

So it's actually 120Ah?
This one pass highway robbery if true.

Edit: I was already salivating at the prospect of stacking 5 of them to get 1000Ah 48V dc lithium bank!

ojeysky:
If the felicity actual capacity is 150AH/48V and not 120AH and if the cells are new then I think it's a good deal at that price.

@NiyiOmoIyunade
This was taken yesterday morning.
It's quite interesting what one can do with emoncms and the plethora of data from my Victron inverter.

I'm going to add night and daytime energy consumption to decide which heavy loads i reaaaallly need to transfer to the Critical Loads DB
Night time = 5pm to 7am (currently averages 15kWh with one aircon on)
Daytime = 7am to 5pm (averages 15kWh as the Heavy Loads DB is currently off due to ongoing renovation works)

APPLIANCES:
Approx. 500w (8 hours) Day time loads = 4kwh
1. 1kva 12Vdc Inverter
2. 4# 300w solar panels
3. 60A CC (Capable of charging Lead Acid or Lithium)
4a. 2# 200Ah 12V dc nominal Lead Acid bank or
4b. 2# 100Ah 12V dc nominal Lithium bank
5. Isolation and protection accessories

Energy Storage @ 12V dc nominal: (8hr DayTime Use)
400Ah @C10 - Lead Acid: 4kwh (50% - Useable = 2kwh) or
200Ah @C2 - Lithium: 2.5kwh (80% - Useable = 2kwh)

Pv Array:
4kwh generated in 4 hours of sunshine = 1000w (4# 300w panels)

Source Priority:
1. Solar
2. Battery
3. Grid
4. Gen

You can comfortably get away with 1# 100Ah 12V dc Lithium battery and 2# 300w PV if the array performs at 4kwh/kw efficiency.

limpopo:
okay, the breakdown.. I don remove some gadgets shaa

43inch TV - 80watts
sound bar --- 70watts
led bulbs (5watts) -- 8pcs -- 40 watts
decoder -- 30watts
phone chargers-- let's say 10watts(10* 5phones)--- 50watts
fans--- (4pcs *40watts)--- let's say 200watts

All the above calculation Na 470watts

So, 470watts for 8hours

Very nice!
Unless i missed it, can you elaborate on the bolded? I suspect you'd have been better served with a 3 phase 5kva build .

A typical Quattro's second output is limited to 50A ac, around 10kw.
This means your heavy loads are at 10kw or lower. If higher, do you use assistants to start a Gen to Power Assist? I'm assuming your loads are split into Essential and Auxiliary loads.

NiyiOmoIyunade:
A quiet weekend allowing me to benchmark my home-office energy system performance and evaluate the design choices I made with single phase 15kva vs 3 phase 5kva

I now understand what those angels who lust after the daughters of men went through before saying "fck it, we die here!"

Good one Mr Niyi!
60kwh Lithium Na to form mini-grid begin bill my neighbours.
I also need a display in the kitchen.

NiyiOmoIyunade:
As an enthusiast you just want to keep trying out stuff.

My PylonTech source believes I still need another 20KwH to round out my system I just smile, he does not know that I had to sell one vital organ and plan for a long time to get the current set.

Any further spend na die be that o!

If the bar dey and you no dey owe, plus a sizeable investment nest egg, then by all means splurge!
I get DIY Lithium in my gunsight

You only live once baba.

ceaser:
It's like inverter appliances will be my next target of investment, aswear. But it's only ACs, freezer, fridges, washing machines and microwave oven that covers that terrain of inverter tech.

The 203L Haier never even reach one year and I'm already itching for this. that was how I retired a new not too efficient 42 inch LED for an A++ efficient 65 inch after 6 months. Because I couldn't get to sell the former quickly, I was forced to give it out against my wish.

I'm worried this extreme urge of acquisition is not bordering on some abnormality.

It means that the total Solar ENERGY generated that day was 53.56kwh to feed house loads and charge the batteries.
That same historic day, his panels went berserk and pumped 12kw of power to 4 charge controllers for a few seconds
causing them to angrily spit over 220Amps unto the hungry DC bus for the inverters and batteries to snag up!

Everyday the house makes unreasonable(reasonable?) load demands. The inverter doesn't care, it simply takes it from the DC BUS.
The batteries and charge controllers are unfortunately on the DC BUS. So, one or both of them must feed it. It's a rat race!

tonididdy:
Pls sir in lame man terms, what do this figures mean... Pls

Penuelseun,
Two independent Relays switching power to a load is very dangerous!
The likelihood of both latching the same time is very high.
Relays fail all the time, i work where this happens regularly...

To mitigate, consider using mechanically interlocked contactors. It's physically impossible for both to energise at the same time.

I'd like to stack 4 of them in parallel for 30kwh 48V. Is it possible?

NoMoreTrolling:
Wow, I can’t believe it!

Someone should please run a test on this batteries. They seem too good to be true.

7.5kwh of lithium for 600k?

Anybody in the house using them?

Mine is downstairs, and it also doubles as my study.

cretin:
...extra room in the duplex dedicated solely to power/inverter and the space will also serve as my study...

.

microgiant:
Kindly share the energy consumption rate.

No idea. I sold it as soon as i got it.

mctfopt:
This tv is very popular outside of Naija. In fact in places like North America, TCL is the popular choice for most people.

I sold this Tv the following day after buying it. I found out i couldn't install PLEX when i took it home. Very nice tv though.
As others have mentioned, I look out for energy savings option AND Plex capable.

@Adrusa,
Good talk about energy isolation.
Always ensure ZERO energy before working on an energized system. Double check or get a second verifier
I've had many near misses in my tinkering career. Now I just pay people to do the work while I supervise.

Nice! I also want to read about your review/experience(s) so far.
I plan to go that route, but the amount of rework necessary to adapt to my current setup looks daunting.
How did you modify your AC water heater connections?

essegis:
I bought and installed this towards the end of last year. I have a big family so I bought the 300ltrs own.

Here...

salford1:
What is the cost of production of Nigerian Crude?

That's not Nigeria's crude.
Bonny light crude is what we sell and it's currently trading at $22.

Commanderinpips:
It is trading at $10/barrel already.

The bolded is the current reality!!
If this madness continues till June/July, then very serious wahala go dey.

If you have dollars, guard it with your life! Spend only on basic needs at this time.

sassysure:
Naija no get any place to store oil except ships. None.
All our oil dey ships for sea. Almost all our ships are loaded and floating in the sea as nobody is buying.
The news was here like few days ago.

How can we not have land reservoirs?

What is wrong with these people or they never envisaged a day like this will come one day?
That's why I call them low IQ politicians

Madam all the suggestions are great as long as you have house loads sharing the 60A from the suggested CC.
That kinda current on a 200Ah C10 battery bank alone may "overfeed" it.
An "overfed" battery condition develops when it receives current far in excess of OEM recommendations.

queenfav:
.

This is good information! Will exercise due diligence.

NiyiOmoIyunade:
Locally you can buy the Victron Lynx In for a pro solution but a bit pricey. In my experience, it could break if you tighten too much...