uhuns:
1, you seem so knowledgeable on the subject that its hard to believe you don't have Answers. But i may just spear my mb on the thread.

2. The spec on the panel isn't clear.

3. Its a 60 cell panel, doubt if you can juice out 330watt from it. I stand corrected on this.

4. Binatone and qasa have 10watt standing fan......ac/dc ...jumia .

5. Stop your fridge by 3pm.

6. Yes, effective solar charging starts 9 and ends 4pm in southern naija ...but i use 4hrs daily in my sunhours calculations.. personal to me..

7. Your batteries are too small for long term usage. Good name but many fake out there.

8. Battery may be bad....too much fake.if so use tubular type.

9. I stand by your technician on external controller as testing application.

10. Endeavour to share finall solution.

11. Age of battery was not clear to me.

12. I hope that 5kva stabilizer isn't in the circuit??
12.1 ensure both morning and evening sun 🌞 reaches the panel

13. ☮️.

Victor0000001:
Hello guys
Please help me here before I faint.

Due to the epileptic power supply in my area. I decided to invest in solar electricity.

I already have an inverter(24v/1.5kva - luminous hybrid) and two quanta batteries(150mh).

The pics are below.

I must say, I have really enjoyed the inverter because there is always at least 4-6 hours electricty to charge it until NEPA in my area decided to go AWOL.

Sometimes, we don't usually have power for 3-4 days, even a week, so I have
always resorted in using a generator to charge the inverter until I decided I must go solar because of my fridge.

NOTE: My fridge is LG inverter fridge, and it's just 60 watts.

I called the inverter guy & we did a calculation of 4 brand new solar panels (250 watts each) because the inverter can only take 1000 watts)

The guy came the following day with 3 used pannels (350 watts each), making 1050 watts & said the panels are even better than the new one.

He said it's made in Japan & he can guarantee me that I will enjoy it.

I trusted him. All I wanted was what would work for me, either new or old panel.

The pics of the panel are also below.

The guy installed it & I was enjoying it for 2 weeks because there was also NEPA power for almost 10 hours every day & the inverter charges with NEPA light because it can do double charging until NEPA decided to do as they would normally do, then I realised that my batteries don't charge well.

I have an IOT timer that would on my fridge at 9am and put it off at 5pm. That faithful yesterday, I came back from work & I confirmed my fridge was off & the only thing that was on were three 10watts bulbs & at 11pm, the inverter was already beeping low battery.

I thought I was dreaming, I studied it again today & it's the same problem.

I also noticed that my inverter indicates that there is solar power as early as 6 am(the lights come on but don't blink)

but starts charging at 9am, (thats when the light starts blinking).

Then stops charging at 6pm ( the light stops blinking) till the light goes off around 7pm.

I was able to watch from the video which I have also shared the link below that when the solar indicator is on for my type of luminous inverter, it indicate that solar energy is available but start to charge when it starts blinking.

My questions are

1. Is the inverter designed that way? Is it some sort of smart intelligence because i am confused why it would behave like that even when the sun is already up at 8 and still up at 6:30pm?

2. Could the panels be bad & not charge the batteries well? The guy said he tested the voltage from the panel & it was around 35v each from one panel if I remember correctly & he had to even step it down. How am I supposed to know if he is saying he truth?

3. He said I should always put off the fridge at 3pm but I refused because that's the main reason I did the solar so my food won't get spoilt.

The fridge is just 60 watts, even my fan is 72 watts.

Why can't a solar panel of 1050 watts charge 2 batteries well.

Even before the solar, if there is light & my batteries are well charged, my batteries will last 2 days & the fridge will be on for at least 4-6 hrs each for those 2 days.

4. He said he would bring a controller so that he would connect the solar directly to the batteries. Would that make any difference? Why can't a 1050 watts solar energy charge two150mh batteries well for 10hours? The only difference might be that charging will start at 8am & stops at 7pm which is plus 2 hrs charge & I see no reason why 10 my batteries can't be up to at least 50% for 10 hrs

More so, the luminous inverter is hybrid & I feel it's well designed to do the controlling than most controllers out there

5. What is the solution? What can I do because I am really frustrated. I just spent 340k & I am not enjoying the benefits yet.

I don't even turn on my TV, fan or anything since the solar installation except my fridge during the day & three 10 watts lights during the night including charging one laptop & one phone.

And now, I might even consider to take all the food in the freezer to a friend's place because they have steady power supply. I can't let the food that will last me more than one week to get spoilt & I don't want to run generator all the time when I supposedly have solar.

I want to tell him to come and remove the panels off my roof, but I want to make sure that it's not a panel issue because i am 100 percent certain my batteries are very good.

Please, what can I do? I am not happy

Victor0000001:


The fridge is just 60 watts, even my fan is 72 watts.

enumerica:


Please show me the model (its name and model number with picture) of your freezer that is 60 watt I am interested in it. I will need the picture and where I can buy one.

rottennaija:


I understand the problems. The fact is that with electricity from NEPA or generator, the system will charge faster and last long than just charging with panels with especially with your configuration of your fridge coming on by 9am going off by 5pm. So if you have a daily electricity of 5 hours, you will not really notice what you are experiencing.

However, taking away the daily electricity supply of 5 hours a day, your fridge coming on between 9am and 5pm, and relying only on solar panels to charge and keep your system running, you begin to experience these.

What most people don't know is that solar panels have an efficiency of 19% to 21%. For a 300w panel, you can get close to 250w when the sun is really high and with a clear sky. And that rarely happens during the day and especially as we have a raining season. Any small cloud passing over the direct sun rays to your panel will reduce it's output. What I am saying is, while you expect to have 1030w from your panels, the reality is going to be very different. You may just be seeing 300w from the system.

Solutions?
Get a premium mppt controller. Your inverter may be hybrid, but it will not be able to give you what you want.

If you can get an mppt that take up to 200v, even better. Let your installer series all the panels, use the mppt and connect directly to the battery.

Then observe it's performance and based on the charging performance of the battery and it's use time, you can decide to adjust your fridge timing according.

Victor0000001:
Thank you guys. I really appreciate your contribution.

You guys are right. The problem was not my panel. I should have written this long ago but was very busy with other things of life.

What I did was to study my inverter and read extensively on it. I discovered that the solar led/light that comes up on the inverter does not necessarily mean that its charging. It only indicates that there is solar power available. The charging starts when the solar led/light begins to blink.

All this while, I thought the inverter charges my battery when the led/light comes up as early as 7am and goes off around 7pm. As a matter of fact, the charging(blinking) sometimes can stop anytime in the afternoon if the sun is not enough according to the inverter calculation. Consequently, i was draining the reserved battery power while I thought it was charging because the led/light was up

**Here is the solution**

I got MPPT solar charge controller and it solved all my problems. This controller does not necessarily need too much sun but only the day light to charge my batteries, considering the fact that I have three panels of 350Watt each as against my two batteries. I now have 24 hours electricity.

I also bought QASA 10 watts fan which I use when there is no NEPA.

I owe this writeup so that someone can also learn.

Thank you so much guys.

uhuns:
1, you seem so knowledgeable on the subject that its hard to believe you don't have Answers. But i may just spear my mb on the thread.

2. The spec on the panel isn't clear.

3. Its a 60 cell panel, doubt if you can juice out 330watt from it. I stand corrected on this.

4. Binatone and qasa have 10watt standing fan......ac/dc ...jumia .

5. Stop your fridge by 3pm.

6. Yes, effective solar charging starts 9 and ends 4pm in southern naija ...but i use 4hrs daily in my sunhours calculations.. personal to me..

7. Your batteries are too small for long term usage. Good name but many fake out there.

8. Battery may be bad....too much fake.if so use tubular type.

9. I stand by your technician on external controller as testing application.

10. Endeavour to share finall solution.

11. Age of battery was not clear to me.

12. I hope that 5kva stabilizer isn't in the circuit??

13. ☮️.