NewStats: 3,264,742 , 8,184,577 topics. Date: Thursday, 12 June 2025 at 09:13 AM 693l41

Mavor:
14.3 kwh - 1.9m, 7.2kwh - 1.2m

14kwh is a much better deal tbh but your budget will decide. 7.2kwh will still serve you just fine.

Difference between them is 14kwh will allow you run a 1hp inverter AC overnight, 7kwh will not.

Olamlag:
to experts in the house i have a couple of questions, why do most 2kva 12v hybrid inverter comes with 80amp mppt charge controller if it has a ma pv array of 2000watt i am a newbie but from my research charge controller should be sized by dividing 2000watt divided by 12v system voltage which is 167amp. just confused about this
question 2 : is there advantage to buy bigger solar like 550 watt to buy a couple of 250watt s?

The maths for max pv isn't as straightforward as that. The current rating of a charge controller is how much it can put into a battery, not how much it can handle from pv.

My 24v 80A mppt can handle 4000w for example, even though the P=VI is just about 2000w. In my case, if my PVs have a max output of 4000w, the inverter will draw the amount of power it needs and invert to AC for load, while sending a max of that 24x80A to the batteries.

HeavenlyBang:


14kwh is a much better deal tbh but your budget will decide. 7.2kwh will still serve you just fine.

Difference between them is 14kwh will allow you run a 1hp inverter AC overnight, 7kwh will not.

My AC is the 2HP LG Inverter AC. If I go for the 14kwh, I will really be stretching my budget. How many and what type of Jinko s are we talking about for it? Thank you.

[quote author=Nteogwuija post=134979766][/quote]
Is this the current voltage as at this moment?
What was the voltage around 6am or 7am?

dollarnaira:

Is this the current voltage as at this moment?
What was the voltage around 6am or 7am?

Yeah, this is the current voltage. It's been raining. I charged it with grid at night. This morning it was around 13.3.

HeavenlyBang:


The maths for max pv isn't as straightforward as that. The current rating of a charge controller is how much it can put into a battery, not how much it can handle from pv.

My 24v 80A mppt can handle 4000w for example, even though the P=VI is just about 2000w. In my case, if my PVs have a max output of 4000w, the inverter will draw the amount of power it needs and invert to AC for load, while sending a max of that 24x80A to the batteries.

thanks now got it

I honestly can't

Drgreatone:

What VOC were u getting with the initial 4 s? I usually try to get around 150v and it works well for me

Guys, are cworth inverters low frequency inverters? If not what other brands of inverters are low frequency ?

Any side effect in combining different lifepo4 battery of same voltage in parallel. Say combining Cworth 25.6v100ah in parallel with say SMS 25.6v 100ah?

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dollarnaira:


Display voltage or percentage

This guy go don frustrate you 😂😂😂😂
I know you are requesting the voltage reading from his CC, but here he is adding fire.

😂😂😂😂😂

[quote author=Nteogwuija post=134979766][/quote]

Another thing you should note is that sometimes your battery might be at float voltage (13.5V or 13.6V), and at that point, it will only take the load of your appliances. This is probably the reason you are seeing 300-400watts or so.

Mavor:
My AC is the 2HP LG Inverter AC. If I go for the 14kwh, I will really be stretching my budget. How many and what type of Jinko s are we talking about for it? Thank you.

Just buy the 7.2kwh then.

The only in stock on Fouani rn are the 590w Jinko at 134k. Depending on your budget, you can buy six or eight of those. Since you have a 2HP AC that'll probably draw about 1.2kw even on eco/gen mode, you're probably better off with eight s if you want to be using your AC during the day.

HeavenlyBang:


Just buy the 7.2kwh then.

The only in stock on Fouani rn are the 590w Jinko at 134k. Depending on your budget, you can buy six or eight of those. Since you have a 2HP AC that'll probably draw about 1.2kw even on eco/gen mode, you're probably better off with eight s if you want to be using your AC during the day.

Thank you.

Nteogwuija:


Yeah, this is the current voltage. It's been raining. I charged it with grid at night. This morning it was around 13.3.

Your battery is full to a very large extent hence, you cannot get beyond your current wattage. To fully test your s, discharge your battery to 12.8v then charge only with solar. If your battery is approaching "full", your CC will drop. It charges according to depletion level. Hope you don get d point?

HeavenlyBang:


Just buy the 7.2kwh then.

The only in stock on Fouani rn are the 590w Jinko at 134k. Depending on your budget, you can buy six or eight of those. Since you have a 2HP AC that'll probably draw about 1.2kw even on eco/gen mode, you're probably better off with eight s if you want to be using your AC during the day.

Decided to settle for this below. Hope the final BoQ is solid? Thanks a lot for your guidance and patience.

Deriy 14.3 kwh

Growatt Inverter – 6kVA 48V (SPF 6000 ES Plus)

Jinko 590W Monofacial Solar x 8

dollarnaira:


Your battery is full to a very large extent hence, you cannot get beyond your current wattage. To fully test your s, discharge your battery to 12.8v then charge only with solar. If your battery is approaching "full", your CC will drop. It charges according to depletion level. Hope you don get d point?

Yeah, fully understood. Thanks for clarifying

Mavor:
Decided to settle for this below. Hope the final BoQ is solid? Thanks a lot for your guidance and patience.

Deriy 14.3 kwh

Growatt Inverter – 6kVA 48V (SPF 6000 ES Plus)

Jinko 590W Monofacial Solar x 8

Good choice. Say bye to grid wahala.

HeavenlyBang:


Good choice. Say bye to grid wahala.

Thank you. Ran some chatgpt computations (for AC 24/7 on the weekends). So I will increase the Jinko to 10 and add a second 14.2kwh Deriy before September.

This is a good way to start, as funds comes in you can increase as the need be without restrictions or having the need to sell off some of your setup.

Mavor:
Decided to settle for this below. Hope the final BoQ is solid? Thanks a lot for your guidance and patience.

Deriy 14.3 kwh

Growatt Inverter – 6kVA 48V (SPF 6000 ES Plus)

Jinko 590W Monofacial Solar x 8

You can connect 2 different battery company together but ensure the charge/discharge parameters are within the recommended settings of the 2 batteries.

omotoda:
Guys, are cworth inverters low frequency inverters? If not what other brands of inverters are low frequency ?

Any side effect in combining different lifepo4 battery of same voltage in parallel. Say combining Cworth 25.6v100ah in parallel with say SMS 25.6v 100ah?

Ferdiwar:
This is a good way to start, as funds comes in you can increase as the need be without restrictions or having the need to sell off some of your setup.

Thank you.

Mavor:
Thank you. Ran some chatgpt computations (for AC 24/7 on the weekends). So I will increase the Jinko to 10 and add a second 14.2kwh Deriy before September.

Good move.

Sunfi Exposed: Fraudulent Staff, Terrible Platform, and Unprofessional Practices Raise Red Flags



Lagos, Nigeria –
Sunfi, once hailed as an innovative startup offering solar financing solutions in Nigeria, has failed to live up to expectations, leaving clients disillusioned and frustrated. Multiple allegations of fraudulent conduct, deceptive practices, and unprofessional behavior are now surfacing, painting a troubling picture of the company’s internal operations.

Reports from businesses and customers reveal a pattern of staff cutting corners and engaging in fraudulent actions, which have significantly damaged client trust and led to operational delays. Despite efforts to resolve these issues, Sunfi has failed to address the concerns, leaving its partners and customers stranded.

“We were misled every step of the way — promises were broken, and when issues arose, Sunfi’s staff were either unable or unwilling to help. The behavior from their team was completely unprofessional and, frankly, fraudulent,” said a representative from one of the affected organizations.

A Platform in Crisis
The company’s e-platform has also been widely criticized for being -unfriendly, difficult to navigate, and completely unreliable. Clients have reported persistent issues with the system that prevent them from completing transactions or getting the they need. Unfortunately, Sunfi’s staff have been unable to offer any effective solutions, further compounding the frustration.

“The system doesn’t work, and the staff can’t fix anything. It feels like they’re just cutting corners at every step. It’s infuriating,” said one disgruntled .

Data Privacy Concerns
Customers are also growing increasingly wary about the handling of sensitive information by Sunfi. With no resolution in sight for the platform and operational issues, clients are urging the public to avoid submitting personal, financial bank statements, or business information to the company for fear of mismanagement and security risks.

An Urgent Public Alert
Industry experts and affected clients are now calling for immediate regulatory oversight and an independent investigation into Sunfi’s practices. “This is not just bad service; this is blatant negligence and fraud. Clients should be extremely cautious when dealing with this company,” warned an energy sector consultant.

As of this report, Sunfi has remained silent, refusing to comment or address the growing concerns.

Bottom Line:
Sunfi’s failure to meet expectations has led to a significant loss of trust. Until the company takes responsibility for its actions and improves its practices, individuals and businesses are strongly advised to steer clear of Sunfi, especially when it comes to handling sensitive information like personal, financial bank statements, or business information.

Please house, what are the disadvantages of solar generators to inverters. I'm seeing some ridiculous price differences

jstemmanex:
Please house, what are the disadvantages of solar generators to inverters. I'm seeing some ridiculous price differences

I think the price difference is due primarily to the portability of solar generators. I don't know, I am not an expert. However if I had enough money and a choice I would prefer to buy a solid high battery capacity lithium solar gen.

Dam5reey1:


Buy power station instead.... They are lighter and more affordable

Pls any difference between a power station and a solar generator

I feel when you put the cost of inverter, battery and s together it exceeds that of solar gen

Mavor:
I think the price difference is due primarily to the portability of solar generators. I don't know, I am not an expert. However if I had enough money and a choice I would prefer to buy a solid high battery capacity lithium solar gen.

jstemmanex:
I feel when you put the cost of inverter, battery and s together it exceeds that of solar gen

I am not sure about that. Compare the price of a 3.6Kwh solar gen from Ecoflow to a 3.6 inverter system, excluding solar s.

Cworth 24V 100AH, available for 575k 540k..

omotoda:
Guys, are cworth inverters low frequency inverters? If not what other brands of inverters are low frequency ?

Any side effect in combining different lifepo4 battery of same voltage in parallel. Say combining Cworth 25.6v100ah in parallel with say SMS 25.6v 100ah?

Just know what you are doing, you can safely do it for science.