adrusa:


True, I used to do something like that when I was using Outback.

Unfortunately I have been searching if there are ready made retrofits that could serve that purpose. It would help a lot if load can be controlled based on battery's state of charge.

jonescosmos:


I would always recommend not combining AC and DC Circuitry, ESD is real and not a friend of most Inverters.
Same way I preached against combining AC Grounding and DC Grounding using the same Earth Rod (Bury 2 Rods in the same spot but don't let them touch each other). Some people who did combine their earthing had their Inverters exposed to hazards and consequently damaging them.
The use of the ATS in the box is not recommended also because anything that trips your Inverter output requires an attention. Go and verify that everything is OK and so you can switch things manually.
Most Inverters are short circuit protected, so if you have a short circuit or some sort garget that is trying to blow, it will raise the amperage on the power source, most inverters will trip to prevent that from happening.
And when it trips, your ATS then switches your supply over to Grid automatically abi?, Well, Nigerian NEPA current does not pity anything wey wan blow. Don't ask me the function of the breakers, most breakers you have in Nigerian Markets today are fakes and locally printed, so they might not protect your equipment in some hazardous events.
People now have printing machines that can print on those breakers, Now that solar is trending, watch them cleaning Ac breakers and printing them as DC breakers. Always buy proprietary protection devices, they costs more but they work.

Avoid using ATS on your Inverter Outputs, use MTS if you must, or do it on the Inverter Input considering alternative source of power.

I come in peace.

This grounding matter keeps coming up, to-merge or not-to-merge, but most times it isn't easy to effect a second ground especially in rented apartments, so what to do?

.

The use of ATS could simply be due to periods of shutdown of the inverter due to low battery levels and not necessarily for malfunction even though I agree that a malfunction requires direct attention. The inverter installation would already have it's own overcurrent protection on it's output either by breakers or current limiters or the inverter itself as you have mentioned, so whatever fault occurring outside of that may not be the responsibility of the inverter and it's handlers except it gets a hit through the input section if left unprotected.

chris81964:

Thank you for the compliment.
Cables coming in are AC 6 mm max x 6, PV 10 mm x 4 and battery 10 mm x 2. Our battery voltage is 360V.

Ok.. these would fit in comfortably then.

adrusa:


I doubt it. The Deye Smartload system takes advantage of the dedicated Generator Port by converting the Gen port to output under certain conditions. So, it will require that you wire your heavy loads to the gen port. If your inverter does not have this baked into its software, you can not use it even if you have 2 outputs. However, you can achieve the same thing in different ways.

For example, what I did is to put my large loads including AC, Fridge/Freezer, Water Heater and Water Pump on a smart relay that is controlled by Home Assistant. They can then be programmed to work only when battery SOC/Voltage/Current is between certain levels.

If one has an inverter with dry ports that get signals based on the SOC, it's just a matter of relays and contactors + timers and one can replicate that. Which is why I love the latest jk bms features.

chris81964:

https://www.youtube.com/watch?v=FN0D-WtieCE

Looks good and secure, but how about wire management? Entry and exit, especially considering the battery's cables too

redgem:


Those are not the jinko panels but a screenshot I saw online showing the cords on some panels someone purchased...

See below the jinko, just took a snap of the sticker

Make things easier for yourself and us, send a full picture of your panel to show what's missing or not instead of giving us trailers and previews.

jonescosmos:


Growatt is a Voltronic Based Inverter but built with quality in mind.
Deye is a Proprietary Owned Inverter built with quality, longevity, strength, adaptation. They have been in existence for a while. America tried to clamp them down by taking a franchise contract under SunSynk, EG4, SolArk, etc. But they eventually got liberated and started shipping out with their own Brand Name: DEYE.

If you have the funds, grab the Deye 5KW, no regrets.

I watched a tear down of a Deye yesterday, and no transformers within it, looks like the Deye inverters are high frequency?

isangjohnson:

I used HSI and Zumax. If the panels are well oriented and the correct size wire was used, then the charging system of the hybrid inverter is the issue.
I had an issue with of one of the hybrid inverters I installed for a customer and suspected it was related to float bulk.. I was unable to get an acceptable margin of float bulk that could comfortably charge the Lfp battery to full. When I set it to the range of 13.8v to 14v, about 9a or thereabouts was coming in from the pv but when I pushed the setting further to about 14.8v, I was seeing 25a and above. I couldn't charge the Lfp battery with 14.8v and I later introduced my spare 60a epever Mppt external CC into it and everything was in order.

Was it the HSI that gave this issue ?

jonescosmos:


Whole House, Nothing is spared.

4x 45Ltr Water Heaters
6x 1.5HP Inverter AC
1x 320Ltr Standing Freezer
2x 450Ltr Inverter Fridges
1x Water Dispenser
4x 65Inches TVs
5x All-in-One Desktop Computers
1x ML10 Gen 9 Server
About a 800w Network Equips and CCTV
10x 30W Flood Lights
16x 26w Energy Saver bulbs
1x 300w Chandelier
1x Microwave Oven
1x Deep Fryer
1x Blender
2 Burner Electric Cooker
2x 1hp pumping machines
3x Laptops
2x 50W Extractor Fans, turned on at Power Room Temperature above 35 Degrees Celsius, turns off once temperature drops to 30 Degrees.
ETC. (Phones Chargers, 4 Rechargeable Wall Fans, Others)

NOTE: All these I have tested real time on a sunny day and I was good.

Grid is available but only turned on automatically by a contactor powered by a Photocell sensor on really cloudy days. So i could say that i am partially OFF-GRID.

All Water Heaters and 4ACs are connected as smart loads and configured to turn off once Battery SOC drops to 50% and no Solar Power.

DIY battery packs are great, but I like data/communication and i am yet to see any assembly that have included RS232, RS485, CAN, and etc ports. Bluetooth options as integrated in most DIY packs is great but is limited to your presence near the installations to be able to get data.
So I intend to re-use the casings I have now in the future if i eventually need to replace my cells.

JK BMS now have data communication and you can link them all.

isangjohnson:

I'm not happy with the behavior of some installers.
Two months ago, dishtech whom I trusted was supposed to handle an installation for my client in Abuja but he went for outside work, which took him longer time to return to Abuja.
I came here and asked for an experienced installer and someone indicated interest and dropped his contact as well.
I called and linked him to my client. Instead of him to go and handle the job by himself, he sent his boys who didn't understand anything about the lithium battery, even as I was monitoring the installation through phone call to make sure all settings were done correctly.
I was surprised to receive a call from my client few days ago that the system had shutdown. I thought it was lvd disconnect. We called the installer and the installer still sent his boy, who went there and told me that the battery wasn't producing power.
I called Dishtech who went there and realized that the battery type was set to tubular battery and lvd was set to 40v. Meanwhile, I set the lvd of the lithium battery to 43.2v (2.7v each).
The installer has collected his money and the overall cost of repairs is on my head now.
SUBMISSION: We should be careful of those people we call for installations.

This isn't clear, didn't the battery's lvd kick in first ?
Was the setup done with a hybrid inverter or standalone CC ?

jonescosmos:


Oh yes, they delivered it. Ordered in Abuja Showroom, They shipped from PHC showroom and delivered to my house in IMO, Transaction also took place in absentia, took less than 24 hours from payment to delivery. FREE DELIVERY

Impressive, especially all that movement for free !

mctfopt:


Please which day did Felicity start producing Tubular batteries?

You mean P elicity

jonescosmos:


Yeah, I bought 24pcs of 625W Jinko Panels yesterday. I know they will increase prices soon enough, usually they would give a tempting discount on that kind of value of purchase but they insisted that there was no discount on panels for now.
Las las I had to buy it like that ooo.
But they were offering a huge discount on Inverters and batteries, even gave me an option to pay in installments if I bought Batteries.

Did they deliver them ? What was their delivery cost like?

yemi2plus:


If you're buying panels from Fouani, buy them NOW. Dollar is going up again.

Do they deliver?

Dam5reey:


He is doing 6p based on the PV Voltage on the screen... It shouldn't even get hot as there is not much conversion...
3s2p/2s3p maybe hit or miss.. he can try his luck...

We may not be sure it is 6p, the controller behaves that way sometimes

swagifted:
I wish say this thing na transformer based.

Do you mean all their inverters aren't transformer based ?

samir101ng:


I think my reaction is not out of hand seeing the "excuses" that are already beginning to be formed. My take is that once you agree to accept somebody's money to offer a service even if it is N1, then you are obligated to deliver on that service. I can already infer where you are heading with statements like "You don't even know how much, how much was earned, its a 12v installation". You decided to accept somebody's money, why shame them on top for not delivering a quality service. Can't we demand for excellent service in Nigeria for our hard earned money again. Arrrrrg. Nigeria. I apologize if it seems like i am overreacting but seriously cases like these do not augur well for us as a nation and that is why the solar industry is full of issues. All i am saying is that let's manage our clients well and offer better support. People are more when you make efforts and show care towards resolving their issues rather than this attitude of your on your own.

You don't seem to be considering many things and are just saying the installer should pay for the inadequacy.
I said the setup is 12V which could imply that it was done with budget funds thereby limiting the options of products available, if the budget could only afford a Modified sine wave inverter and the client's appliance react appropriately, are you saying the installer must go and replace the inverter with a pure sine wave out of his pocket?

In this particular case, the installer has taken steps to find a solution, he has come to the forum for opinions, he has contacted the manufacturer and reported the issue to them and they have requested a return.
The installer has not left the client "on your own" yet, rather, he has even mulled using a PWM and bearing cost.
I believe the better thing to do is to let that process run it's course first, to know if the inverter is faulty or working as designed rather than blaming the installer for not wanting to spend 100k for something which could have not been his fault and also be beyond his control.

samir101ng:


You see this statement. This is what gets me angry. This is why a lot of Nigerians have such a high distrust for anything inverter/solar and Kazeem installers adding to it with poor service. After quoting and charging a client for labor and materials. You install a product that suddenly develops a fault NOT due to any user error, and yet are unwilling to go the extra mile to support the client. Most installers have this attitude of once i install anything for a client and i collect my money they can go to hell. Not knowing that an installation is an entry point to continuous patronage and good will that can last for years and bring even bigger rewards down the line. As an installer, you should ensure that materials you buy are original and comes with guarantee/warranty from the suppliers for their products. No client wants to hear that they are on their own when it comes repairs and warranty claims. As e dey pain you now to remove money to resolve this issue, so did it pain the client to cough out his hard earned money to pay you for a quality service. In business some days you win some days you lose. But always try to treat your customers better and try to resolve their issues.

I think you may be overreacting here, the vendors have said he should bring in the item for a checkup, and I believe he has agreed to do so but the client wants him to put an external CC, at whose cost should that be?
You don't even know how much was paid or how much was earned, and it's also a 12V installation.

It would be unfair to say he should bear the cost solely? Especially immediately too, when there's still the option of returning the inverter for a check to see if it is faulty or that's how it was designed to work.

ojeysky:
3 years+ on this one and still counting. Performance still great.

Which BMS is this?

odimbannamdi:
Please, let's put Valto in prayers. He is seriously sick and has little access his phones

Meanwhile, I got one of Valto's battery (12v 135ah with Bluetooth enabled BMS) for a friend last year, and the guy has really been enjoying the battery.

But for about a week, there has been an issue. Previously, it was cutting off power supply at 30%, probably to protect the battery, and our expectation was that the cut-off period would reduce with more usage. It did reduce to 20-something, but recently it cuts off at 62%, giving just a few hours of use. Below are screenshots of the BMS interface on his phone.

Is anyone experiencing this? And how did you resolve it? The guy really needs an update

Check the cell voltages, probably one of them is low and the cell protection is kicking in.

Theflint1:
Hello house, looking to get an inverter, stuck between the 24V 3KWH Growatt, 24V 3KWH tbb and the 24V 3.3KWH SRNE.

Based on personal experience, which of these three is recommended?

Tbb

Atlantic's YouTube video didn't really do much though. Let's be honest, at some point they were portraying one thing and saying another.

Dr. Solar mentioned many times that the cells were BYD and didn't really say bad things about them but on the other hand the aura of the video was trying to make the viewers believe the product was the problem whereas the installer was actually the problem.

If they actually did a capacity test and it failed then it may have been a fit.

Dam5reey:


So you no dey watch youtube reviews on batteries where teardown, capacity test is being carried out?
do I need to be paid to review a product that was purchased with my funds?

The similar capacity issue with C-worth the company does not even understand what 80% DOD means! just saying rubbish. The pack had 85AH batteries inside and was labeled 100AH.. and the only explanation was that the 85AH was related to 80% DOD, even when I showed a screenshot that I discharged from 56V to 42V which is 100% DOD.

This is plain fraud, which of their products and capacity was that?

mctfopt:
All the guys complaining of the reasons mentioned why Yohako lithium batteries is shìt, SHOULD NOT TALK, they should SHOW us by doing a rebuttal video. If they can't they should shut the fùck up!

I believe we should be able to make our opinions without being vulgar.
As par the yohako battery, it is better we separate the issues.

The battery not being able to serve the setup in which it failed was not in anyway yohako's fault. It was the installer that missed the basic physics as stated. If he had paid attention to the max discharge then he could've sized appropriately but as stated, the client seemed constrained with funds and he got what he paid for.

Whatever cells yohako had used in that battery would've reflected in their pricing too, except if they overstated the capacity and hid important details, I don't think there's a need to crucify them, they even stated the max charge and discharge which is usually a pointer. They have their target market, not everyone can shell out funds for BYD or even felicity which I think yohako should be cheaper than.

mctfopt:


It does take measurements of say battery voltage which you can get from any voltage meter. But it doesn't really tell you accurately if a battery is weak or not

It doesn't do just voltage though.

Obnoxious2001:

No.
But the comparison was done using a good battery and a bad battery (there was a duration test first ).

The bad one came out good..

What the battery analyser does is try to read the internal resistance of the battery.
For a new batteries, SoH of about 85-100% is acceptable because of self discharge in storage while internal resistance of about 1.0 - 3.0mΩ is acceptable.

Note that the lower the internal resistance the better.

Yes, I think it relies on the internal resistance vis a vis state of charge to make the verdict, so, except we're saying the measurement is wrong then maybe it's still close.

dollarnaira:


Care to share?
08133 nine three 2627

Someone shared their contact already and you acknowledged.

durodee:
A video to watch.https://www.facebook.com/reel/2774148709411698?s=chYV2B&fs=e&mibextid=f7oaF0
Lots of claims but I wonder how long before the bubble burst?

Couldn't access the url

dollarnaira:

Gbam!!!

I saw the nairaland notification on nairaland but I don't have access to the email any more and nairaland no gree us change email

brightk:
hi everyone,, am having a hard time choosing between canadian 600w panel, jinko 550w and 580w panel.. am on a tight budget and want to replace some old sticker panels i have...

i would appreciate your comments..

thanks

You may need to consider their dimension too, for easier handling, especially if they're going on your roof.

Obnoxious2001:


This battery Analyser is not accurate

Did you review it personally? What did you compare it with ?

mctfopt:


I have this tester, and I can confidently tell you it ain't reliable.

Why do you say so? I believe it takes some measurements, are the measurements wrong ?