isangjohnson:
I tested 1600w qasa electric kettle today with nepa light. Though I didn't check the litre but the water was boiled at exactly 8 minutes.
I want to buy and be using it for day and night on solar.
Does anyone know another product with lower watt?
Night consumption is my little concern, though my battery bank is sufficient for such load.

1600w is fair. i have a German made 2.4 litre electric jug, consumes 2350w, boil water in less than 3mins. i use it frequently day and night.

Post pictures of d installations

stuffs2002:
Good evening gurus in the house,


I had solar panels, inverter and batteries installed in my two houses by same installer but I noticed that there is no form of protection (Like Circuit breakers, lightening arrestors) in any of the two installations. I'm a bit worried and want to know what is to be done.

I am an Electrical Engineer and I expect to find some form of protection on the two systems.


Thanks as I await your inputs

Thanks @ Ceaser and Valto

emyfine08:
24v 5kva Ss power inverter and felicity cc 80amp&
100amp for sale in good condition and working well reasons for sale upgrading
Whatsapp me
08139374109

Do you still have this?

Good morning guys. Recently a standalone 4kw continuous PSW inverter crapped out while using it to pump water (1hp). I do not think the pump was responsible cos the inverter has been used for this function at least twice weekly for a whole year. It's only the AC output that failed and also the output LED digital indicator failed. Battery LED indicator still shows the voltage of the battery input. Still hope to get it repaired.

But with the lack of a suitably sized backup and short of funds, I was compelled to immediately secure a replacement but this time went hybrid for the first time. 48v 5kw felicity with parallel and batteryless fxtn. Already installed and doing fine.

However I am thinking if there are other cares with its use to make it last much longer. Does it make any sense getting a water-cooled set to further augment the cooling function of the in-built fan? Something like in the attached picture.

isangjohnson:
I tested 1600w qasa electric kettle today with nepa light. Though I didn't check the litre but the water was boiled at exactly 8 minutes.
I want to buy and be using it for day and night on solar.
Does anyone know another product with lower watt?
Night consumption is my little concern, though my battery bank is sufficient for such load.

intermittent use of high draw loads shouldn't be an issue if the battery sizing was done right.

You are possibly suffering from PTSD boss

You do not need any additional cooling to keep your inverter operational within its normal duty range. A well ventilated room perhaps with a fan blowing directly on the inverter heatsink are more than sufficient.

What was the inverter brand that crapped out? Did you have anything by way of overcurrent/short circuit protection between inverter AC Out and your loads?

ceaser:
Good morning guys. Recently a standalone 4kw continuous PSW inverter crapped out while using it to pump water (1hp). I do not think the pump was responsible cos the inverter has been used for this function at least twice weekly for a whole year. It's only the AC output that failed and also the output LED digital indicator failed. Battery LED indicator still shows the voltage of the battery input. Still hope to get it repaired.

But with the lack of a suitably sized backup and short of funds, I was compelled to immediately secure a replacement but this time went hybrid for the first time. 48v 5kw felicity with parallel and batteryless fxtn. Already installed and doing fine.

However I am thinking if there are other cares with its use to make it last much longer. Does it make any sense getting a water-cooled set to further augment the cooling function of the in-built fan? Something like in the attached picture.

stuffs2002:
Good evening gurus in the house,


I had solar panels, inverter and batteries installed in my two houses by same installer but I noticed that there is no form of protection (Like Circuit breakers, lightening arrestors) in any of the two installations. I'm a bit worried and want to know what is to be done.

I am an Electrical Engineer and I expect to find some form of protection on the two systems.


Thanks as I await your inputs

You need lightning protection for the solar inverter and also a very good earthing syatem for the whole house

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.

My little advice is, change the inverter to a known and tested brand since you're going for offgrid.
If you're not on budget, go for Victron Multiplus 5kw 48v or Deye or Growatt, Felicity inverter is good as well and budget friendly.
For the battery, I'll prefer 8 pcs of 200ah Quanta or Fullriver which may give you about 9.6kwh DoD, if only the rated ah is correct or 14kwh lifepo4 battery with about 9.8kwh 70% draw. You could draw 80% if you so wish. Any of these two batteries will take care of your loads conveniently including your 1.5hp pumping machine.
As for the AC, I'll prefer 1HP Inverter Ac which consume about 480w (from the list Ologan pasted sometimes ago). I've not checked the watt of the two fans you intend to run at night but if you add your lightings 232w as stated with the Ac and few other unknown loads, you'll be looking at about 900w night loads and running this loads on battery for 9 hrs could consume about 8.1kwh. Adjustment is left for you.
As for the panels, I'll prefer 450w x 9 pcs if your battery won't consume much at night and 12pcs if your battery will be deeply discharged at night.
Just my little input.

topsy23:


You need lightning protection for the solar inverter and also a very good earthing syatem for the whole house

Pls can you explain to me what kind of lightening protectors and earthing system I should get because I intend to buy the items myself.

I have 24V system with several solar panels

I would understand because I am an electrical engineer

Greetings to everyone...

Please anyone with a personal experience on the Tactel products...

Precisely the 3.5kva 24v norminal system? :

Check out this product on Jumia https://www./tactel-solar-3.5kva-24v-pure-sine-wave-inverter-105338686.html?utm_source=social&utm_medium=pdpshare

Kindly share your experience please...

isangjohnson:

My little advice is, change the inverter to a known and tested brand since you're going for offgrid.
If you're not on budget, go for Victron Multiplus 5kw 48v or Deye or Growatt, Felicity inverter is good as well and budget friendly.
For the battery, I'll prefer 8 pcs of 200ah Quanta or Fullriver which may give you about 9.6kwh DoD, if only the rated ah is correct or 14kwh lifepo4 battery with about 9.8kwh 70% draw. You could draw 80% if you so wish. Any of these two batteries will take care of your loads conveniently including your 1.5hp pumping machine.
As for the AC, I'll prefer 1HP Inverter Ac which consume about 480w (from the list Ologan pasted sometimes ago). I've not checked the watt of the two fans you intend to run at night but if you add your lightings 232w as stated with the Ac and few other unknown loads, you'll be looking at about 900w night loads and running this loads on battery for 9 hrs could consume about 8.1kwh. Adjustment is left for you.
As for the panels, I'll prefer 450w x 9 pcs if your battery won't consume much at night and 12pcs if your battery will be deeply discharged at night.
Just my little input.

Why have a 14kWh lifepo4 and draw just 9.8kWh? This is too Conservative

We should be able to comfortably go down to 12.5kWh

Jefferyzz:
Post pictures of d installations

I have two houses in different states but the installations were done by same person.

This is the circuit diagram of both installations

topsy23:


You need lightning protection for the solar inverter and also a very good earthing syatem for the whole house

But assuming the house has a lightning protection is it still necessary to do one for the solar inverter?

Sapiosexuality:
But assuming the house has a lightning protection is it still necessary to do one for the solar inverter?

The common Lightning arrestor covers about 25m radius only if the spike is original copper and not copper coated

But there is another one called indelec, This indelec can cover between 60m 100m radius


Check our thread for more information
https://www.nairaland.com/2316228/importance-proper-earthing-bonding-system/3

stuffs2002:


Pls can you explain to me what kind of lightening protectors and earthing system I should get because I intend to buy the items myself.

I have 24V system with several solar panels

I would understand because I am an electrical engineer

Pls go through our thread for more understanding

Check our thread for more information
https://www.nairaland.com/2316228/importance-proper-earthing-bonding-system/3

topsy23:


Pls go through our thread for more understanding

Check our thread for more information
https://www.nairaland.com/2316228/importance-proper-earthing-bonding-system/3

That's hardly what I need. It's too elaborate for a simple solar installation

Check the average super market, you will likely find one with lower power consumption. I have personally seen a 1.5liters electric kettle with 1300w power consumption on it. I wanted to buy it but my wife suggested we go for 1.8liters/1450w.

isangjohnson:
I tested 1600w qasa electric kettle today with nepa light. Though I didn't check the litre but the water was boiled at exactly 8 minutes.
I want to buy and be using it for day and night on solar.
Does anyone know another product with lower watt?
Night consumption is my little concern, though my battery bank is sufficient for such load.

please. anyone with used low cost mppt, pleases help a brother, all fingers no equal

08034288798pleaas

NiyiOmoIyunade:
You are possibly suffering from PTSD boss

You do not need any additional cooling to keep your inverter operational within its normal duty range. A well ventilated room perhaps with a fan blowing directly on the inverter heatsink are more than sufficient.

What was the inverter brand that crapped out? Did you have anything by way of overcurrent/short circuit protection between inverter AC Out and your loads?

You need to see how I bursted out laughing at the bolded. And you just may be right.

The inverter that crapped out was a Chinese made actually, with one obscure name like that, and I didn't expect much life cycle out of it because of that. Initially I was being cautious with its use but later got more confident when it clocked two years without any hiccups.

Installation site is in the rear porch, so my worry is more of dust particulate than of inadequate ventilation.

As for any protection between inverter output to the house mains, there is none save a manual transfer switch (picture attached). It only subserves the purpose of switching between the inverter and gen (very infrequently used). There is no PHCN input into the house, so that NEPA wàhálà section/aspect is not a worry.

Which ones would you suggest is/are used as protection from inverter to the house loads?

NB: that transfer switch was absent ab initio and was only installed along with the installation of the replacement inverter.

ceaser:

You need to see how I bursted out laughing at the bolded. And you just may be right.

The inverter that crapped out was a Chinese made actually, with one obscure name like that, and I didn't expect much life cycle out of it because of that. Initially I was being cautious with its use but later got more confident when it clocked two years without any hiccups.

Installation site is in the rear porch, so my worry is more of dust particulate than of inadequate ventilation.

As for any protection between inverter output to the house mains, there is none save a manual transfer switch (picture attached). It only subserves the purpose of switching between the inverter and gen (very infrequently used). There is no PHCN input into the house, so that NEPA wàhálà section/aspect is not a worry.

Which ones would you suggest is/are used as protection from inverter to the house loads?

NB: that transfer switch was absent ab initio and was only installed along with the installation of the replacement inverter.

You can use a properly sized ac breaker plus Avr/current limiter for your output. Just set your preferred current so it trips whenever it exceeds set current.

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Sunmart Vmii 3.5kw 24v 100a hybrid inverter 500vdc - 320k

Sunmart Vmiii plus 3.5kw 24v 100a hybrid inverter 500vdc - 340k

Sunmart Vmiii plus 5.5kw 48v 100a hybrid inverter 500vdc - 395k

Sorotec Revo Vmii 5.5kw 48v 100a hybrid inverter 500vdc - 420k

Sorotec Revo Vmii 3.5kw 24v 100a hybrid inverter 500vdc - 340k

Sorotec 5.5kw 48v 100a hybrid inverter 500vdc parallel version (includes parrallel kit) - 460k

Sorotec 3.5kw 24v 100a hybrid inverter 500vdc parallel version (includes parrallel kit)- 380k

Sorotec Revo vmiii 5.5kw 48v 100a hybrid inverter 500vdc - 440k


Sorotec Revo vmiii 3.5kw 24v 100a hybrid inverter 500vdc - 360k

Powmr 3.2kva 24v 80a mppt hybrid inverter - 250k

Powmr 3.5kva 24v 100a mppt hybrid inverter - 340k

Powmr 5.5kva 48v 100a mppt hybrid inverter - 385k

Snadi 3.5kva 24v inverter wall mount (transformer) - 275k


Snadi 5.5kva 24v inverter wall mount (transformer) - 350k

Snadi 5.5kva 48v inverter wall mount (transformer) - 350k

Epever tracer 60a mppt charge controller - 175k

Epever tracer 100a mppt charge controller - 270k

Must 100a mppt solar charge controller - (out of stock)


Must 60a mppt solar charge controller - 130k

Must 80a mppt solar charge controller - 140k

Fangpusun flexmax 80a mppt charge controller - 270k

Fangpusun flexmax 60a mppt charge controller - 200k

Fangpusun 50a 12/24v - 90k

40amps mppt lumiax Bluetooth controller - 75k

60amps lumiax Bluetooth mppt controller - 140k

60amps powermr mppt - 70k

Greenpole 48v 100ah lithium battery - 930k

Avr/current limiter 60a (Tomzn) - 10k

Avr/current limiter 63a 4pole (tomzn) - 25k

Change over breaker/MTS (tomzn) - 6.5k

Change over breaker/MTS 4pole (tomzn) - 15k

DC SPD 500v - 9k

DC spd 1000v (tomzn)- 10k

Ac spd 385v - 8k

Ac spd 275v (tomzn) - 9k

Ac spd 4 pole - 17k

Watt meter - 14k

Mc4 connectors - 650

Mc4 y connector 2 in 1 - 2.8k

Mc4 y connector 3 in 1- 4k

Mc4 y connector 4 in 1 - 8.5k

Programmable timer 15a UK pkug - 9k

Programmable timer 25a - 9k

solar DC fuse holder 1 pole (tomzn) - 3k

Solar DC fuse holder 2 pole (tomzn)- 5.5k

Solar DC fuse (10a/16a/20a/25a/30a) - 2k

DC breaker 10a 600v double pole (tomzn)- 6.5k

DC breaker 16a 600v double pole (tomzn) - 6.5k

DC breaker 20a 600v double pole (tomzn) - 6.5k

DC breaker single pole (32-63a) - 3k

DC breakers double pole 63a - 5k

DC breaker double pole 100a - 9k

Dc breaker double pole 125a - 10k

DC breaker double pole 100a (tomzn)- 10k

Dc breaker double pole 125a (tomzn)- 13k

Dc breaker mccb 250a double pole - 29k

Ha02 battery balancer - 35k

Automatic transfer switch (ATS) 63a (tomzn) - 21k

Automatic transfer switch (ATS) 100a (tomzn) - 24k

Automatic transfer switch (ATS) 125a (tomzn) - 25k

6 in 1 Ac display meter ( watts, voltage,kWh,amps, freq, power factor) - 15k

9way breaker enclosure - 4k

DM for other items.

Call/chat - 08117398294
- 09067411214

ceaser:
Good morning guys. Recently a standalone 4kw continuous PSW inverter crapped out while using it to pump water (1hp). I do not think the pump was responsible cos the inverter has been used for this function at least twice weekly for a whole year. It's only the AC output that failed and also the output LED digital indicator failed. Battery LED indicator still shows the voltage of the battery input. Still hope to get it repaired.

But with the lack of a suitably sized backup and short of funds, I was compelled to immediately secure a replacement but this time went hybrid for the first time. 48v 5kw felicity with parallel and batteryless fxtn. Already installed and doing fine.

However I am thinking if there are other cares with its use to make it last much longer. Does it make any sense getting a water-cooled set to further augment the cooling function of the in-built fan? Something like in the attached picture.

You should not need additional cooling for an inverter already built with active cooling. Unless you are changing the fan for something more efficient, whatever you go with would just be inefficient because cooling needs to be directed at the component that requires it to be effective.

Your previous inverter probably failed mostly due to bad design which could be in way of bad thermals or the capacitor went bad (usually the case) due to them using a substandard capacitor or a capacitor with relatively low voltage ceiling.

tsiriman:


Why have a 14kWh lifepo4 and draw just 9.8kWh? This is too Conservative

We should be able to comfortably go down to 12.5kWh

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

contease:
Greetings to everyone...

Please anyone with a personal experience on the Tactel products...

Precisely the 3.5kva 24v norminal system? :

Check out this product on Jumia https://www./tactel-solar-3.5kva-24v-pure-sine-wave-inverter-105338686.html?utm_source=social&utm_medium=pdpshare

Kindly share your experience please...

Contact idyllic, they have a good inverter with very low idle consumption and also editable settings.

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

Insufficient pv is also a reason for not discharging up to that. People like to take out what they can comfortably put in.

60A Techfine MPPT controller available, #85,000. Call/WhatsApp me 08168986461

60A diamond controller available, #75,000. Call/WhatsApp me 08168986461

isangjohnson:

Insufficient pv is also a reason for not discharging up to that. People like to take out what they can comfortably put in.

Yeah, true

isangjohnson:

Insufficient pv is also a reason for not discharging up to that. People like to take out what they can comfortably put in.

This is such an understated statement that is often overlooked in system design. Your discharge should first be based on what you can comfortably put back into the battery bank before you start using SOC to measure discharge. Any off-grid setup which does not follow this basic fundamental will end up killing their battery. The size of your solar panels and their estimated daily output is what would decide how your battery would be discharged.

Thanks for the input @ Zeestone @ Bigrover

earthrealm:


Shit happens, make sure the batteries you were charging don't have an internal short, high end chargers hv inbuilt fuse that will cut to prevent damage to the equipment in such a scenario

or you were attempting to force charge a deeply sulphated battery.

Thanks for the response, boss, and very insightful perspectives you presented there.

However, i discovered that my "curtain" was the culprit... ...somehow, the curtain close to the area my setup is installed blocked the fan operating inside the charger and heat possibly built up in the system over the night causing it to damage. When the first repairer i took it to in Ijesha opened it, we discovered that two major components (i think the power, transformer and toroid or so) was completely burnt. The repairer condemned it...

I decided to count my loss and buy a new one. So, i headed to Idi-oro, Mushin, and bought a new one. Just as i was about leaving the shop, it occurred to me to ask them who repairs Suoer inverters and chargers and they referred me to one Pastor at Macintosh plaza, opposite Gtbank. Luckily, he had a scrap charger of same model, so he replaced all the burnt components and the charger is working well. The man confidently said he repairs inverters and chargers, but he is a specialist in Suoer. So, just in case someone needs to repair any Suoer product, i will be happy to direct the person to him.

Summarily, i ended up with 2 chargers (a new one and the repaired one). My usual sef would have put up one of them for sale immediately... , but the way prices of things are skyrocketing, i am better off keeping it. Besides, it doesnt hurt to have an extra of these kind of devices as they come in handy as backups