pranil:


I believe a central system with regulation on individual flats is cheaper and easier to maintain in the long run. The load /utilization factor ( diversity ratio) is much lower for 6 flats combined than a single one and will result in overall lower battery size. Also, it may be much easier to support a single system with a small generator in the short run than to build a large system from the start

Thanks Pranil. I agree that it will be easier to maintain. My question is regarding battery longevity. In a battery bank I assume that all batteries will be used at least 80% of the time, while for separate units some may not be used at all for a while? So if in the bank setup ALL batteries in the bank are cycled often, will they last as long as separate installs where some are used often while some are not?

TLDR;
The batteries will underperform, achieve or surpass their rated cycle life based on a large number of variables. It is not just how many cycles a battery does that matters but a host of parameters around how those cycles were done that will determine service life.

The key point to bear in mind is the significant upfront cost savings (at least 50% savings) if you choose a centralized system with one inverter and centralized battery bank vs. a distributed system having dedicated inverter and batteries per dwelling unit especially as you can expect ~50% occupancy on the average. Within a standard operating range, you will achieve significant economies of scale in equipment costs for the centralized system

Designing and deploying bespoke systems such as these is our specialty at Luminant Tech Systems - you can reach out to us (sales@luminanttechsystems.com) and we will work with you to deploy an effective system.


Now the long answer;

Loading and Cycle Life;
If a battery was rated 1,750 cycles at 30% DoD for example. There is typically an implicit assumption that the loading is at or near C20. If you were to always overload the battery e.g load it C8 while still not exceeding 30% DoD, you can bet that battery will not make its rated 1,750 cycles.

Temperature And Service Life;
Batteries are generally speced at 25°C - higher temperatures generally give shorter service life and vice versa. If you add on the complication of whether or not your charge source can perform temperature compensated charging, you can expect your service life to vary significantly.

Sulfation And Deficit Charging;
A battery needs to get a regular full charge; passing through [Bulk -> Absorb -> Float on a regular basis. Undercharging will lead to sulfation and progressive loss of capacity.

These and many other variables will determine the service life your batteries will give when they are placed in service.

mktinsight:


Thanks Pranil. I agree that it will be easier to maintain. My question is regarding battery longevity. In a battery bank I assume that all batteries will be used at least 80% of the time, while for separate units some may not be used at all for a while? So if in the bank setup ALL batteries in the bank are cycled often, will they last as long as separate installs where some are used often while some are not?

generalstingz:
Big thanks to @kiekie1 for the fast delivery. To the contributors in the house, I doff my hat

We appreciate your patronage Sir! Happy client>>Happy us✓

Chuckdee:


Hi Eathrealm,

Not sure if you have found the video already but here is the one I used when setting up mine, it is well detailed. Cheers


https://www.youtube.com/watch?v=SzW5X1ZOL5w

Evening Boss ..Nice video clip! Those are pro solar roof mounts! I posted pictures of same few years ago if I can remember .They are readily available @ 29-30k per set

I have a used 5kva 48v ipowerplus solar inverter for sale. It has been in use for about a year in a server data center. It is been sold due to upgrades. The system is in perfect working order. The ipowerplus is a white labelled axpert inverter mks 5kva.
120k
SOLD

Namzy:

Well I don't have the lcd version but after chatting with the supplier and extensive research I have come to the conclusion that the lcd version is same thing as the led version + the mppt control display and that does not have the equalization settings. I have also seen YouTube videos where someone browsed through the whole settings and equalization settings was not there. Also going through the manual of the mppt control display unit which the lcd of the mppt control is has no equalization option as well. If you can show pics I'd appreciate it because I want that display unit too

Hello Mr namzy, don't wori bro , for the equalization we knw our way. P

mktinsight:
Thanks for the info guys.

I have more questions. Lets say you have six rental units. These units have the exact same configuration - 2 fans, 1 tv, LED lights. Occupancy of these units ranges from 25% (quarter full) to 100% during the course of the year. Lets say you want to use an inverter to power these units as a standby with a minimum of 12 hours per day:

1) Would you install 6 Separate inverters and batteries in each unit or 1 big inverter with a battery bank?
2) What battery configuration would you need to supply at least 12 hours of standby power per day?
3) Please explain which setup is more efficient, cheaper, easier to maintain

Thanks

I will rather do seperate install for the 6 rooms, everyman for himself

Namzy:

Well I don't have the lcd version but after chatting with the supplier and extensive research I have come to the conclusion that the lcd version is same thing as the led version + the mppt control display and that does not have the equalization settings. I have also seen YouTube videos where someone browsed through the whole settings and equalization settings was not there. Also going through the manual of the mppt control display unit which the lcd of the mppt control is has no equalization option as well. If you can show pics I'd appreciate it because I want that display unit too

Equalisation can only be enabled through the victron connect software for victron charge controllers. The particular brand of fangpuson u are using is a clone of the victron mppt bluesolar controllers. Since late 2016, victron have made it difficult to use their official victron connect software with the fangpusun clones.. Often times they inject a silent kill switch to the fangpunsun which gradually kill the controller. This happens when you try to connect the fangpusun with a victron connect software (least from november 2016).. It was because of this issue that fangpunsun starting making a "*new*" bluesolar with a new casing that comes without the victron connect port hence making it impossible for users of their product to mess with victron software and end up causing damage.

Your options are in 2 folds.

1 find online an older version of the victron connect app (I am using version 1.7) and that seem to work without issues. Once you get this you ccan connect it to the fanpusun cc with the ve usb port. The newer models without the port on the surface can still be used but it would need to be opened up.

The best and easiest option 2 is to just manually increase your absorption charge voltage to 15.5 per 12v and ensure you maintain this for close to 2 hours. This is pretty much what absorption charge does anyway. The downside is you lose automatic equalization which is suppose to happen once every 30 month at least. But trust me, you always want to be there when equalizing batteries just to keep an eye on things so option 2 might not be as bad as it sounds.

bigrovar:


Equalisation can only be enabled through the victron connect software for victron charge controllers. The particular brand of fangpuson u are using is a clone of the victron mppt bluesolar controllers. Since late 2016, victron have made it difficult to use their official victron connect software with the fangpusun clones.. Often times they inject a silent kill switch to the fangpunsun which gradually kill the controller. This happens when you try to connect the fangpusun with a victron connect software (least from november 2016).. It was because of this issue that fangpunsun starting making a "*new*" bluesolar with a new casing that comes without the victron connect port hence making it impossible for users of their product to mess with victron software and end up causing damage.

Your options are in 2 folds.

1 find online an older version of the victron connect app (I am using version 1.7) and that seem to work without issues. Once you get this you ccan connect it to the fanpusun cc with the ve usb port. The newer models without the port on the surface can still be used but it would need to be opened up.

The best and easiest option 2 is to just manually increase your absorption charge voltage to 15.5 per 12v and ensure you maintain this for close to 2 hours. This is pretty much what absorption charge does anyway. The downside is you lose automatic equalization which is suppose to happen once every 30 month at least. But trust me, you always want to be there when equalizing batteries just to keep an eye on things so option 2 might not be as bad as it sounds.

You said it all

dejidotun2000:
In a 3 phase star connected winding (which is what your transformer is), if the neutral terminal were to become ungrounded the neutral will rise with respect to the ground except the loading on the 3 phases is balanced.

The loading is never balanced thus you will find a voltage on it.

Very correct.
I was able to get PHCN tech guys to come check the site.
They reported back that a loose cable on the tx was seen and tightened....That possibly brought about an unbalanced system as you opined.

Thanks boss

Namzy:

Lol you sure say you look well? 100/50a led version
12v 24v solar controller MPPT solar controller model 100v
https://s.click.aliexpress.com/e/cgMXj71Q
For lcd 100/50a version
Wholesale price for FANGPUSUN TOPSALE MPPT solar controller
https://s.click.aliexpress.com/e/c5A2UbwY

Me sef find tire i had to contact the company directly via mail. they responded tho. but i needed a place i can see all the items and their prices.

Thanks, on behalf of me and others wey don fly go ali since de dig de find. lol

FAIRLY NEW BATTERIES!
Kindly call if interested in fairly used 200a AGM Batteries. Tested ok! Very limited stock .

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ojeysky:


Now waiting patiently for my 3Kva GK Series to arrive

So I just got a call from FedEx that my package is held at customs until I pay duty fee, I wonder if anyone has experienced this before? What's the duty charges like?

ojeysky:


So I just got a call from FedEx that my package is held at customs until I pay duty fee, I wonder if anyone has experienced this before? What's the duty charges like?

Who uses FedEx to ship? Custom might charge you twice the cost of that thing.

OgogoroFreak:
Who uses FedEx to ship? Custom might charge you twice the cost of that thing.

Ah! I used FedEx based on the experience shared by duwdu who used FedEx as well and got delivery of the same inverter (just that mine is 3kva). Now I am worried!!!

ojeysky:


Ah! I used FedEx based on the experience shared by duwdu who used FedEx as well and got delivery of the same inverter (just that mine is 3kva). Now I am worried!!!

Duty fee for your inverter should be around 12k to 22k depending.

I had a similar experience with DHL on an inverter. I ended up paying 22k cos I was in a hurry. I was told I could have paid less if I didn't opt for express.... That was 4years ago.

ojeysky:


Ah! I used FedEx based on the experience shared by duwdu who used FedEx as well and got delivery of the same inverter (just that mine is 3kva). Now I am worried!!!

This people and their hopelessness, duwdu should have info on the payment. Kindly let us know how much u pay at the end. Good luck!

Solar water heater efficiency on a hazy day.
See infrare thermometer reading in the short video clip below
WHATSAPP::: https:///2348170385620


https://www.youtube.com/watch?v=QhnXFCqW69o

ojeysky:


So I just got a call from FedEx that my package is held at customs until I pay duty fee, I wonder if anyone has experienced this before? What's the duty charges like?

What about the liberalization of trade in renewable energy products the government talked about some years ago??

kiekie1:
Solar water heater efficiency on a hazy day.
See infrare thermometer reading in the short video clip below
WHATSAPP::: https:///2348170385620


https://www.youtube.com/watch?v=QhnXFCqW69o

Yeah! This is Frankie
We love product review from market leader like you.

Nice !

Glad to be of help.
Cheers.

Trippledots:


Very correct.
I was able to get PHCN tech guys to come check the site.
They reported back that a loose cable on the tx was seen and tightened....That possibly brought about an unbalanced system as you opined.

Thanks boss

ONLINE DELIVERY OF RENEWABLE ENERGY MATERIALS

INVERTER

MICROTECH INVERTER
900VA,12V N46,000
1.1KVA,12V N53,000
1.6KVA/24V N72,000
2KVA/24V N80,000
2.6KVA/36V N105,000
3.6KVA/48V N170,000
5.2KVA/48V N340,000.
5.5KVA/96V N340,000
10KVA/180V N790,000


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1.1KVA,12V N70,000
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7.5KVA/120V N500,000

TRIBAL INVERTER

1.5KVA/24V N82,000
2.6KVA/36V N105,000
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10kva/48V 8000W 48V N 950,000

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KEYE 1.2KVA/12V - N54,000
KEYE 3.5KVA/24V - N180,000
KEYE 3.5KVA/48V - N180,000
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KEYE 5KVA/48V -N 1275,000
KEYE 7.5KVA/48V – N400,000
KEYE 10KVA/48V – N6800,000



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VOLTRON SERIES
1.4KVA/12(30A N65,000
2.4KVA/24V50A N97,000
3KVA /48V 60A MPPT N220,000
5KVA /48V 60A MPPT N310,000
7.5KVA /48V 60A MPPT N430,000
10KVA /48V 100A MPPT N750,000
15KVA /48V 60A MPPT N850,000
15KVA /48V 120A MPPT N890,000


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2KVA/24V(600W MPPT) #138,000
3KVA/24V(600W MPPT) #149,000
3KVA/24V(1500W MPPT) #194,000
3KVA/48V(3000W MPPT) #202,000
5KVA/48V(3000W MPPT) #306,000
10KW/48V(14850W MPPT) #1,660,000


STABILIZER

VOLTRON STABLIZER
6KVA WALL MOUNT RELAY REGULATOR #45,000
6KVA WALL MOUNT SERVO REGULATOR #65,000
12KVA WALL MOUNT RELAY REGULATOR #90,000
12KVA WALL MOUNT SERVO REGULATOR #120,000


PRAG STABLIZER

10KVA WALL MOUNT SERVO REGULATOR #130,000
12KVA WALL MOUNT RELAY REGULATOR #120,000
15KVA WALL MOUNT RELAY REGULATOR #140,000
15KVA WALL MOUNT SERVO REGULATOR #240,000
20KVA RELAY REGULATOR #195,000
20KVA SERVO REGULATOR #370,000
30KVA SERVO REGULATOR #470,000


BATTERY

GENEX BATTERY 12V/200AH N 120,000
LONG BATTERY 12V/200AH N 120,000
MONBAT BATTERY 12V/200AH N 125,000
MONBAT BATTERY 12V/210AH N 120,000
ELSON BATTERY 12V/200AH N 115,000
MICROTEC BATTERY 12V/200AH N 105,000
M POWER BATTERY 12V/200AH N 115,000
EASTMAN 12V/200AH TALL TUBULAR BATTERY N115,000
GLT BATTERY 12V/200AH N 90,000
ZEEDIX BATTERY 12V/200AH N 95,000
RITAR BATTERY 12V/200AH N 130,000
PRAG BATTERY 12V/200AH N 140,000
PATTERN BATTERY 12V/200AH N100,000
QUANTA BATTERY 12V/200AH N 130,000


BATTERY RACK
BATTERY RACK 2 BATTERY N 15,000
BATTERY RACK 4 BATTERIES N 30,000
BATTERY RACK 8 BATTERIES N 50,000


CHARGE CONTROLLER
ROY SOLAR SERIES
20A 12/24V PWM CONTROLLER N 20,000
30A 12/24V PWM CONTROLLER N 25,000
40A 48v PWM controller (LED) N 50,000
30A 96v PWM controller (LCD) N 120,000
60A 48v PWM controller (LCD) N 95,000


COWIN SERIES
20A 12/24V PWM CONTROLLER N 15,000
30A 12/24V PWM CONTROLLER N 20,000
40A 12/24V PWM CONTROLLER N 25,000
50A 12/24V PWM CONTROLLER N 32,000
60A 12/24V PWM CONTROLLER N 41,000
40A 48v PWM controller (LED) N 25,000
50A 48v PWM controller (LED) N 32,000
60A 48v PWM controller (LED) N 50,000

COWIN MPPT SERIES

40A 12/24/48v MPPT controller (LCD) N 80,000
60A 12/24/48V MPPT controller (LCD) N 130,000

EPEVER MPPT SERIES
12/24/48 /45A N 145,000
12/24/48 /60A N165,000

DIAMOND MPPT
60A 12/24/36/48VOLT N115,000

FANGUNPSUN MPPT SERIES
30A 24V N40,000
60A 48v N140,000
80A 48v N170,000

SOLAR PANELS

JOY SOLAR PANEL
150w MONO -N32,000
200w MONO -N33,000
260w MONO -N54,000


150w POLY –N27,000
200w POLY -N31,000
260w POLY -N52,000

TRINA SOLAR PANEL

300w MONO -N85,000
320w MONO -N110,000


YINGLIN SOLAR PANEL
100w POLY -N22,000
150w POLY -N33,000
200w POLY -N39,000
260w POLY -N51,000
310w POLY -N62,000


100w MONO-N25,000
150w MONO -N33,000
200w MONO -N39,000
260w MONO -N59,000
320w MONO -N74,000

JINKO SOLAR PANEL
JINKO SOLAR 370WATT MONO - N80,000
JINKO SOLAR 340WATT MONO - N70,000
JINKO SOLAR 280WATT MONO - N57,000
JINKO SOLAR 265WATT POLY - N55,000

CANADIAN SOLAR PANEL

MONO-
290w. N60,000 (BULK PURCHASE ONLY)
330w. N66,000 (BULK PURCHASE ONLY)

POLY
270w. N45,000 (BULK PURCHASE ONLY)
275w. N59,000 (BULK PURCHASE ONLY)

ACCESSORIES

PROGRAMMABLE Digital timer 15A N7,000
PROGRAMMABLE Digital timer 25A N9,000


BATTERY BALANCER /EQUALIZER 48V 35,000
BATTERY BALANCER EQUALIZER 24V #30,000
BATTERY VOLTMETER INDICATOR #1,700


DC CIRCUIT BREAKER 63A/120V---500V 2 POLE N 8,000
DC CIRCUIT BREAKER 125A/500V 2 POLE N 14,000



DC IRON 150WATTS #9,000


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Thanks Frank @kiekie1 for the delivery of 2 units of 250w Sunshine Poly Panels just after 24 hours of payment.
And about the price, I got the best bargain based on understanding LOL. Because I could remember that used to be our point of quarrel years back but we're 100% Good now LOL. I recommend him.

ojeysky:


So I just got a call from FedEx that my package is held at customs until I pay duty fee, I wonder if anyone has experienced this before? What's the duty charges like?

OgogoroFreak:
Who uses FedEx to ship? Custom might charge you twice the cost of that thing.

ojeysky:


Ah! I used FedEx based on the experience shared by duwdu who used FedEx as well and got delivery of the same inverter (just that mine is 3kva). Now I am worried!!!

Braaad:


Duty fee for your inverter should be around 12k to 22k depending.

I had a similar experience with DHL on an inverter. I ended up paying 22k cos I was in a hurry. I was told I could have paid less if I didn't opt for express.... That was 4years ago.

Oshomo12:


This people and their hopelessness, duwdu should have info on the payment. Kindly let us know how much u pay at the end. Good luck!

Earthrealmlord:


What about the liberalization of trade in renewable energy products the government talked about some years ago??

I paid 11k as Customs duty, ojeysky. This is how it went down:

I got a call from FedEx that Customs had determined that the PIP was a dutiable item and to supply them by mail with my Import Tax # (or something to that effect) or get one from the Customs website, otherwise they (FedEx) would apply their own applicable tax regime to get the PIP cleared before it would start attracting demurrage. I couldn't figure anything out from the referenced Customs page so responded accordingly and specifically requested FedEx to apply their best practices. The result was the 11K assessment and payment into the nominated FedEx account. The PIP was released and delivered the following day.

IIRC, some previously tax-free RE equipment were re-categorized into tax brackets sometime towards the end of 2018, effective this year. I think I saw some sort of debate on some forums on that policy. So I wasn't that surprised with the duty slap. It won't be a surprise either if all courier service providers are now being made to comply.

Just advise FedEx like I did or some similar way, ojeysky, and you should be home and dry.

........
P34c3
.....
...

8 units of Trojan J185 battery for sale @ NGN70,000 each.
Used for a year.
Reason for sale: upgrade.
All in good condition.
If interested, drop your number or email.

New Arrival
200ah
100ah
18ah
12ah
7ah

The King of all AGM batteries is available for those who know. If you are into installation and fed up with replacement of batteries for your client at your own loss, smile because all your worries are over with BRITE LITE brand which has come make a mark... call or WhatsApp to place your order @ importer’s rate

viperVIP:
Thanks Frank @kiekie1 for the delivery of 2 units of 250w Sunshine Poly Panels just after 24 hours of payment.
And about the price, I got the best bargain based on understanding LOL. Because I could remember that used to be our point of quarrel years back but we're 100% Good now LOL. I recommend him.

Good morning Sir . Thanks for the patronage ! We look forward doing more business with you !!

zeestone99:


I will rather do seperate install for the 6 rooms, everyman for himself

hello bro, need your advice on a cost efficient upgrade.currently i use a 1.5kva luminous inverter,2 220mah flooded batteries,4*250 mono panel and a 40A pwm controller but i want to upgrade to 4*220mah batteries and 8*250 panels.My installer says i can still retain my 1.5kva inverter,40A controller but will just take a longer time to charge....whats your opinion.Thanks

My setups have all served well as you noted. But I can't shake off the feeling that things can get interestingly better by going MPPT. More so that plans to harness solar for water heating (panels + water heater with a DC element swapped in for the stock AC element), the gate opener and electric fence as well are in the pipeline. These are setups I know will require MPPT in as their components. I think a little personal DIY experience with MPPT use will not be a bad idea.
arc welder download

With your proposed update, one 60a mppt cc is recommended. 40a PWM will not charge your battery bank efficiently.

oluwaslimzzy:
New Arrival
200ah
100ah
18ah
12ah
7ah

The King of all AGM batteries is available for those who know. If you are into installation and fed up with replacement of batteries for your client at your own loss, smile because all your worries are over with BRITE LITE brand which has come make a mark... call or WhatsApp to place your order @ importer’s rate

You should add the prices and also the warranty info (if any)

Runx:
With your proposed update, one 60a mppt cc is recommended. 40a PWM will not charge your battery bank efficiently.

Thnks