samir101ng:


Where is the TUV Rheinland certification on the sticker for this "Made in Germany" panel ?

designed in Germany, but made in China

Sapiosexuality:
Guys, what do you think of this solar panel from Gennex technologies?

655w panels are too big. You will spend a lot in transporting it to your location (also considering the attendant increased risk of damage in transit), the installer will charge you much because it will be harder lifting it up the roof, and the roof will buckle more under its weight, increasing the risk of damage to the roof.

Dont go above 540w.

odimbannamdi:


655w panels are too big. You will spend a lot in transporting it to your location (also considering the attendant increased risk of damage in transit), the installer will charge you much because it will be harder lifting it up the roof, and the roof will buckle more under its weight, increasing the risk of damage to the roof.

Dont go above 540w.

Okay. Thank you. Maybe I'd go for two 450w as earlier suggested by someone here.

samir101ng:


Where is the TUV Rheinland certification on the sticker for this "Made in Germany" panel ?

Yeah

odimbannamdi:


655w panels are too big. You will spend a lot in transporting it to your location (also considering the attendant increased risk of damage in transit), the installer will charge you much because it will be harder lifting it up the roof, and the roof will buckle more under its weight, increasing the risk of damage to the roof.

Dont go above 540w.

Is there any advantage in using them?

samir101ng:


Where is the TUV Rheinland certification on the sticker for this "Made in Germany" panel ?

Qcell is now owned by chinese and is a top brand panels better than canadian and Jinko so I really doubt these prices sha

Valto:
BRAND NEW 135AH lifepo4 lithium battery cells available. limited stock!
all types of lifepo4 lithium BMS is available.
whatsapp 0802-057-4628

Valto , do me xmas with 8 pieces now

Hello,

I have tried to scan through this thread to see if there is any response that answers my question.. But, I haven't found any yet.. It's very long thread.. Wished I had seen it before setting up some of my installations..

First setup,

- I have a 220ah Neptune tubular battery
- A 30A PWM charge controller
- I use a 6mm aluminum DC Cable
- I use two 200w panels (connected in parallel)
- I use a 2000w Souer power inverter
The setup is less than 2 months old..

The problem is;

I use this system to run
- My freezer (thermocool chest inverter freezer -115w)
- A few akt 12w bulbs
- Basic charging (laptop, phones)
- And, blender
Just basic household activities..

Recently, when I started loading freezer on this setup.. I found out that my battery runs down very fast.. Of course, I know I should increase the battery.. But, this feels a little odd.. I can't even use my freezer for up to 6hrs.. Battery rarely gets to full charge..

This is the question I need answering -
I am looking at getting
- One extra 220ah Neptune tubular battery
- Three 200w panels
- and, probably a 60A mppt CC
Is this a recommend upgrade that would work ? (Will it have a significant increase in my uptime)


Second setup..

- I have a 3.5kva 24v felicity hybrid inverter..
2 400w panels
- Two 200ah amaron quanta batteries
- I used an independent PWM charge controller (the setup engineer recommended this)

Client plans upgrading this later to add

- Two more 200ah amaron quanta batteries
- Two 400w panels

Question is,

Is this also a recommended upgrade for longer uptime?

hayo15:
Hello,

I have tried to scan through this thread to see if there is any response that answers my question.. But, I haven't found any yet.. It's very long thread.. Wished I had seen it before setting up some of my installations..

First setup,

- I have a 220ah Neptune tubular battery
- A 30A PWM charge controller
- I use a 6mm aluminum DC Cable
- I use two 200w panels (connected in parallel)
- I use a 2000w Souer power inverter
The setup is less than 2 months old..

The problem is;

I use this system to run
- My freezer (thermocool chest inverter freezer -115w)
- A few akt 12w bulbs
- Basic charging (laptop, phones)
- And, blender
Just basic household activities..

Recently, when I started loading freezer on this setup.. I found out that my battery runs down very fast.. Of course, I know I should increase the battery.. But, this feels a little odd.. I can't even use my freezer for up to 6hrs.. Battery rarely gets to full charge..

This is the question I need answering -
I am looking at getting
- One extra 220ah Neptune tubular battery
- Three 200w panels
- and, probably a 60A mppt CC
Is this a recommend upgrade that would work ? (Will it have a significant increase in my uptime)


Second setup..

- I have a 3.5kva 24v felicity hybrid inverter..
2 400w panels
- Two 200ah amaron quanta batteries
- I used an independent PWM charge controller (the setup engineer recommended this)

Client plans upgrading this later to add

- Two more 200ah amaron quanta batteries
- Two 400w panels

Question is,

Is this also a recommended upgrade for longer uptime?

All this load on a single battery is a lot.
Panels also inadequate..
All the solution you wrote is correct increasing the battery and panels. Also changing to mppt.

Now you stated the system is 2 months old , you might get away by adding new batteries.

But if money dey, sell the battery and buy 2 new ones. And add more panels.

hayo15:
Hello,

I have tried to scan through this thread to see if there is any response that answers my question.. But, I haven't found any yet.. It's very long thread.. Wished I had seen it before setting up some of my installations..

First setup,

- I have a 220ah Neptune tubular battery
- A 30A PWM charge controller
- I use a 6mm aluminum DC Cable
- I use two 200w panels (connected in parallel)
- I use a 2000w Souer power inverter
The setup is less than 2 months old..

The problem is;

I use this system to run
- My freezer (thermocool chest inverter freezer -115w)
- A few akt 12w bulbs
- Basic charging (laptop, phones)
- And, blender
Just basic household activities..

Recently, when I started loading freezer on this setup.. I found out that my battery runs down very fast.. Of course, I know I should increase the battery.. But, this feels a little odd.. I can't even use my freezer for up to 6hrs.. Battery rarely gets to full charge..

This is the question I need answering -
I am looking at getting
- One extra 220ah Neptune tubular battery
- Three 200w panels
- and, probably a 60A mppt CC
Is this a recommend upgrade that would work ? (Will it have a significant increase in my uptime)


Second setup..

- I have a 3.5kva 24v felicity hybrid inverter..
2 400w panels
- Two 200ah amaron quanta batteries
- I used an independent PWM charge controller (the setup engineer recommended this)

Client plans upgrading this later to add

- Two more 200ah amaron quanta batteries
- Two 400w panels

Question is,

Is this also a recommended upgrade for longer uptime?

For the 1st setup:
Is this on off grid setup?
If Yes, Even after you add 1 more battery, it will not serve you (bitter truth).
If No, Do you have a means of charging the system when the sun is down?
If yes, up your panels to 4 in total,
discard the old one battery and grab 2 new ones
chnage from PWM to MPPT.
Do something about your alluminium cables please. I never hear am before.

For the 2nd Setup:
the proposed upgrade is fine but change from PWM to MPPT or use the inbuilt MPPT on the Inverter.

Any guide on how to setup a LiFePo4 battery?

I will probably discard my tubular and go for LiFePo4 instead..

Please note I am completely off grid..

hayo15:
Any guide on how to setup a LiFePo4 battery?

I will probably discard my tubular and go for LiFePo4 instead..

Please note I am completely off grid..

Resources are plentiful on YouTube on how to DIY lithium batteries, @valto can provide you with real capacity cells or even put it together for you as a finished battery.

Reach out to him for enquiries. If you decide to go for finished products, options are plentiful to choose from, just state Ur options here so people can make inputs...... Cheers

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oldienavie:
This is why I laugh when people shout Buhari. 95% of Nigerians are wicked, greedy and evil who will do anything to get money.

They dont care if the person dies, when we have thousands of companies manufacturing fake drugs and selling to people, is that not witchcraft.

These people will still take proceeds from these terrible activities and pay as tithe.

Majority times I will blame the buyer. I'm scrolling the comments now and someone has posted a cad solar panel for around 200k plus. Some greedy buyer will see someone selling that particular panel for 100k and will rush to buy it with that feeling that he's a smart buyer. We all know what happens at the end. Many people like awoof in this country.

Valto:
designed in Germany, but made in China

Brother, i tire o. You wonder sometimes between the buyer and the seller who wicked pass Your guy said yeah

EPOMA:


Qcell is now owned by chinese and is a top brand panels better than canadian and Jinko so I really doubt these prices sha

The price is not even the issue (though that should ring alarm bells in your head). TUV Rheinland is an important certification label that a reputable solar panel like Q Cells should come with (its stated on their website and manual) but is conspicuously missing on the sticker. Some people will now purchase it and start wondering why they are not getting the nameplate capacity of the panel.

@ toyeoye
In addition to this, i will recommend schneider "Mureva Floodlight" they are quite versatile and can be on but without light, can perform a lot of function. you read up more of them to get better understanding.

samnaija:


You are pushing your system to know it's weakness, that is how you will eventually have a better system.

First and foremost 48v system is more reliable than 24v system. If the system is new add extra battery to make it 48v.

Fence light and flood lights, all on why?
To avoid issues with security lights , I got the solar security light . They are even brighter and they are timed to come on , at sun down. They become dim when there is no movement around your compound, but bright once it senses movement.

Your fridge, whether it is a low energy consumption or high is a big no for 24hrs use.
Personally I will go for a deep freezer low consumption, use through out the day, on solar, switch it off by 5 or 6pm.
The chill within the freezer can carry you to next day you continue story .
I got rid of my big fridge, when I noticed issues.
In renewable energy, live like a king when the sun is up, avoid unnecessary load at night.
Also change your charge controller.

Why not go for the PowMr sold locally and via a member here, the newer brand even has a wider voltage range.

better than sourcing abroad.

haslaw:
Good evening gurus,

I have been looking for a good MPPT Charge controller and I came across this on AliExpress with the following parameters

Is this a good MPPT Charge controller as I am thinking of buying it but I need advice from the experts in the house.

So guys I’m torn between buying 15kw from felicity or for local coupling.

I need an advice

Do know felicity will offer at least 2-5yrs warranty on theirs and the coupled one well I’ll have to be forcing the person to help me should incase issues arises with the battery.

Someone posted here that felicity does not offer actual power of what Dey claim to be the power

But I asked a frnd and he told me yes it’s true for his 10kw bt his 15kw offers actual value for it.

Question now is . Is he right about that and those that claim to say felicity doesn’t offer it’s actual power have any tested the 15kw own.

Want to give a good advice to my uncle with respect to what will work for him best.

Money also is a factor
The best is all he wants

Thanks

drizzypat:
So guys I’m torn between buying 15kw from felicity or for local coupling.

I need an advice

Do know felicity will offer at least 2-5yrs warranty on theirs and the coupled one well I’ll have to be forcing the person to help me should incase issues arises with the battery.

Someone posted here that felicity does not offer actual power of what Dey claim to be the power

But I asked a frnd and he told me yes it’s true for his 10kw bt his 15kw offers actual value for it.

Question now is . Is he right about that and those that claim to say felicity doesn’t offer it’s actual power have any tested the 15kw own.

Want to give a good advice to my uncle with respect to what will work for him best.

Money also is a factor
The best is all he wants

Thanks

I prefer the diy coupled version over the Felicity brand, especially the one by @valto

EPOMA:


Qcell is now owned by chinese and is a top brand panels better than canadian and Jinko so I really doubt these prices sha

That's the problem. When you see funny prices just run.

zeestone99:


Majority times I will blame the buyer. I'm scrolling the comments now and someone has posted a cad solar panel for around 200k plus. Some greedy buyer will see someone selling that particular panel for 100k and will rush to buy it with that feeling that he's a smart buyer. We all know what happens at the end. Many people like awoof in this country.

It's a question of the chicken and the egg. Which one came first ? If all sellers sold only original, OEM parts at current prices will the average Nigerian buyer be able to afford it ? Naturally all buyers are market conscious and will look to get the best deal possible at a lower price. Nobody including me wants to spend higher than what i can get for a product. Difference is some people are more stingy with money and willing to do the research and analysis before parting with their hard earned cold cash

Penuelseun:
I prefer the diy coupled version over the Felicity brand, especially the one by @valto

really please why

drizzypat:
really please why

I like knowing what my system is made up of, the BMS is also swappable peradventure you see another BMS that tickles your fancy

The DIY builds allow you to pick and mix and match the best components or at least you know what the weak points of your system and design are - you can choose cells of a certain grade, BMS with certain features, use busbars and connectors rated for your planned max loads, compress your cells for longevity - basically you can deliver your best knowledge and ability with a DIY pack.

With the Felicity packs, cell quality, brand and type is variable, BMS may not allow you to interface with it, capacity quite overdeclared (my experience with 10units of their 7.5kwh) and you are relying on the manufacturer for warranty cover.

I would rather build a battery pack to my own exact specs and to meet my own exacting standards.

drizzypat:
really please why

samir101ng:


It's a question of the chicken and the egg. Which one came first ? If all sellers sold only original, OEM parts at current prices will the average Nigerian buyer be able to afford it ? Naturally all buyers are market conscious and will look to get the best deal possible at a lower price. Nobody including me wants to spend higher than what i can get for a product. Difference is some people are more stingy with money and willing to do the research and analysis before parting with their hard earned cold cash

Best deal? I believe Buyers need to apply common sense when dealing. In the previous page I saw how valto was doing his analysis on price of original lifepo4 cells compared to the market price of some brands and the maths wasn't adding up. Majority Nigerians are just greedy and like awoof. You can sugarcoat it with plenty English for all I care

Hello house
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olopan:
@ toyeoye
In addition to this, i will recommend schneider "Mureva Floodlight" they are quite versatile and can be on but without light, can perform a lot of function. you read up more of them to get better understanding.

Noted! Thank you

olopan:
@ toyeoye
In addition to this, i will recommend schneider "Mureva Floodlight" they are quite versatile and can be on but without light, can perform a lot of function. you read up more of them to get better understanding.

How much do they cost?

Thanks for the heads-up

@hayo15
Is your 2000w souer msw or psw?

dollarnaira:
@hayo15
Is your 2000w souer msw or psw?

It's modified sine wave..