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Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 8:31pm On Mar 24, 2024
nicodemusic:
Please review this response of yours.. You only described 5panels @ the bolded.. What connection (parallel or series) would I use to attach the 6th panel?

I'm considering adding 2 more pcs of 400W panels to it if that's what it would take to have a good charge on a daily basis. So far, I haven't been satiefied with the results. I have 2 12v 200ah Quanta batteries.. I particularly went for quanta at a higher price because I learnt it was better. I'm worried because my neighbor's system stays way longer than mine.. I guess cos I just installed mine and perhaps it's not charged.. Note: Neighbor has 3.5kva 24v setup with 2 12v 200ah felicity battery, while I have 5kva 24v setup with 2 12v 200ah quanta battery. Neighbour's uses 8pcs 200w panels while I use 4pcs 400w panels which I think it's technically same from calculation. I want to max out my options to determine if the batteries are the culprit so that I can return them ASAP.. Thanks everyone
I would love to ask you some questions to be able to suggest further.
The panels you have are not grade A panels so you would be looking at 300KWp per panel, that makes 1200KWp for your 4 panels.
4.25KWh for 5 hours (Average Sun Hours) means you were generating 850W per hour for 5 hours, So you see why I said you should expect a 300w from each of your panels.
Now you have 24V 200A battery bank which is 4.8KW, Your yield of 4.25KW can never be able to fill your battery to float before sun down. Meaning that you are gradually killing your batteries and on the long run, the cells will be weakened.
And I hope there are no loads during the day, because if there are loads, they are also taking power from your 4.25KWh solar energy and battery, making your batteries to get far more less energy to reach floating stage.

My final verdict. Check the direction your panels are facing, check your daytime load consumption, i.e.: get the total load that are powered during the day, your Battery is already about 4.8KW and assuming you have to recharge it everyday after an overnight usage.
Confirm how many hours you have sun at your location.
Get the appropriate panel capacity that can give you the total KW +5% you got from your total daytime load + your battery bank capacity.
Unless your system is connected to the Grid which makes it possible to augment your battery charging via Grid, you are bound to replace the battery at short intervals.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 7:01pm On Mar 24, 2024
nicodemusic:
Please review this response of yours.. You only described 5panels @ the bolded.. What connection (parallel or series) would I use to attach the 6th panel?
Oh my God. 3S2P means 3 panels in series, 3 panels in series. And then you parallel the 2 sets of arrays.

Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m):
nicodemusic:
Please clarify your comment and fix typos.. I currently have 4pcs 400w so adding 2 to it would be 6pcs so how it the connection going to be for maximum results? Also, why did you say I can't get the best out of it??
There was no typo in my response.
From the Panel Datasheet you attached your VOC is 46.5V per panel. You have a CC with System voltage of 150V.
A series connection will give you 186V. So you can't do a series connection of the 4 panels.
A system that have a max voltage of 150V will have a starting voltage from around 80V or more.
Doing a 2 series and 2 parallel connection will give you 93V which is not going to optimize your yields.
Thus my recommendation for a 6 panels of 3 in series and 2 parallel which will give you a 139.5V and way above your Starting Voltage.
The implications of this is that your system will start yielding as soon as the sun comes up in the sky.
Otherwise you'll have to wait for intense sun to start yielding.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 4:10pm On Mar 24, 2024
swagifted:
you suppose buy one electric vehicle de dump energy i tell you.
Heading there
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 2:16pm On Mar 24, 2024
TechGeek777:
This is 90% of total capacity which is quite fair.

Did you use SPD for the inverter AC Output?
Nope.
SPDs are attached to the PV inputs and AC input only.
AC inputs and Outputs, PV inputs and Batteries all have breakers respectively.

Would you have advised otherwise?

Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 11:22am On Mar 24, 2024
brightk:
What is ur pv capacity and type of inverter?
The picture has all the details. But since you asked.

PV is 15KWp (16x 600w Canadian Solar Panels. 10x 540w Felicity Solar Panels)
Inverter is Deye 8KW EU Model x2 in parallel
Battery is Felicity 15KW x4 in parallel though capacity test topped off at 13.5KW. So I have 54KW Battery literally.

Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 10:41am On Mar 24, 2024
swagifted:
but wait, is it because of the low voltage that happened days back?
Nope.
It's because the solar panel energy is oversized and the Grid has been made the last option to draw energy from.
So the inverter draws as much power as possible from the panels, Charges Battery if the SOC is less than 60%, Powers up the smartLaod interface which is where Water heaters and ACs are connected. With one ACs connected to the UPS Load interface.
If at night time and the battery SOC drops to 40%, the SmartLaod Interface shuts off, and if the Battery SOC drops further to 20% and the sun is not up, Grid interface is turned on to handle the energy demands till sun up.
Take a look at the attached picture. It's 10Am and am grabbed more than 6Kw from the panels already.
It goes up to like 15kw sometimes.

Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 7:39pm On Mar 23, 2024
swagifted:
lol, u get light abi you no get light? This days if you see 12 hours na thanks giving
I get light but my inverter simply ignores it. Take a look at the attached picture.

Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 4:43pm On Mar 23, 2024
swagifted:
if you love numbers like me....the Nigerian national grid performance for wednesday and friday ....
It's only them that knows where they sent 99,299.89MWh to oo.
Perhaps they can break it down further to show how many Mega Watts that was sent to each states. And let the states confirm the numbers.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m):
dbshaywhy:
Good day professionals,
Can single core coleman wire (say 4mm and 6mm) be use?
4mm.... A output and input
4mm....pv input (about 8 pcs of 435w jinko solar panels)
6mm...battery to 3.5kva Growatt 48v ES.
Is Growatt better than felicity?
@dollarnaira
@justemanuel
@bassdow
@penuelseun
@johncosmos
And others professionals I could not mention.
4mm AC OUT (LOAD)
6mm AC IN (CHARGING AND LOAD BYPASS)
4mm PV (DELIVERING ABOUT 14Amps @ about130Volts DC)
35mm FOR 48V BATTERY

For Growatt vs Felicity: Growatt Is better, There are Felicity models that beats Growatt but are not for African Markets.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 9:06am On Mar 21, 2024
nicodemusic:
Good morning house.. Please I need some technical support on how to connect 4 pcs of 400W solar panels to achieve maximum harvest..

Available Apparatus

4 pcs 400w panels (specs attached)
60A mppt charge controller (Vmax 150volts)

I think it has to be parallel/series connection.
This is completely a DIY so any assistance would be highly appreciated.
Just buy 2 more pcs and go on 3S2P connection. Otherwise, 2S2P is your best shot and you can't get the best out of it.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 7:23am On Mar 21, 2024
isangjohnson:
Pylontec battery is more superior than lifepo4 battery, hence the price difference.
If the Felicity can give you quality lifepo4 battery with real capacity that can take you for 10 years, I would suggest you go for lifepo4 that has more usable capacity.
REASON: In the next 8 to 10 years, another battery may likely come out that would be superior than these two and you may likely want to switch over...... If you were to compare pylontec 4.8kwh with lifepo4 7kwh at the same price, I would chosen pylontec.
SUBMISSION:Human wants are unsatiable.
There exist a better Lithium Battery than LiFePO4 and it's called Lithium manganese nickel cobalt oxide. (NMC for short)

Li[Ni0.5Mn0.3Co0.2]O2 as a Superior Alternative to LiFePO4 for Long-Lived Low Voltage Li-Ion Cells.

NMC are good batteries, they just really hate high temperatures. It is already being used for over 2 years in cold regions.
Lithium manganese nickel cobalt oxide (NMC532, CBP-52) has the chemical formula of LiNi0.5Mn0.3Co0.2O2 where the atomic ratio of Ni:Mn:Co is set to 5:3:2 in order to have high specific energy density, favorable rate capability for discharge and charge cycles, and provide a relatively cost affordable cathode active material for lithium-ion battery applications, especially for electric vehicles and other applications such as field drones, e-VTOL, and consumer electronics.

We hope that we may have the opportunities to utilize some of these techs due to regional, natural and conditional restrictions.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 10:28pm On Mar 18, 2024
dollarnaira:
Baba it is about choice. As for me, I detest hybrid for now. Repairs, complexity, inbuilt cc can be pwm shocked , if one part get damaged it means the whole system need to be admitted by a technician. How long it will take for repairs? Only the gods can tell. If you make use of lead acid and is taking too long to fix, sulphation will gradually set it. With non hybrids you can have different spares. Use your head sha.
I am unapologetically a hybrid fan, till next life, Take it or leave it, standalone systems are gradually becoming obsolete.

Deye and Sunsynk and a few other brands are taking the lead. Their inbuilt MPPT are the best so far, they will suck the juice out of your panels before considering any other source.
The configurable Gen-Port option makes it possible to have your heavy loads turned off and on according to the battery SOC and available energy from the Sun.
Configurable "Time of Use" makes it possible to tell the inverter when to use Grid to charge your battery.
Configurable Protections from unsafe Grid sources are the bomb. For example you can set the inverter to ignore grid if the incoming Ac voltage is not within 200V and 230V. You can also tell it to wait for some time (say 1-5minutes) before accepting grid when "Nepa brings light".

We now have Hybrids with 1000HVDC (High Voltage DC Input) both on battery Input and PV inputs, meaning that they do little or no energy conversion or inversion on the DC circuits. Say you have battery banks of 1000VDC that can charge with 200-1000VDC source, and PV array of 800-1000VDC, so your HV Hybrid Inverter just passes the Voltage to the battery terminals without worrying itself. Blue Carbon has such function where you connect the PV directly to the Battery, Oh yes you heard me right. No external CC or Hybrid required because the MPPT is built into the Battery.
Many of these functions are not yet available on the Voltronic based Inverters.
People should not be discouraged from getting Hybrids, rather you point out the functions and safety features to look out for when considering a Hybrid Inverter.
To Prospective Hybrid users: Do a good Earthing, Get a good Stabilizer is possible, Check out the interesting features of the Hybrid Inverter you are about to buy. If all pans out, go for it.
Truth is, Hybrids are here to stay.
Please let's stop instigating fear into people who are contemplating on startups with smart systems.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 11:36pm On Mar 10, 2024
swagifted:
where can one get this battery in nigeria.
Ring me up 0 8 0 3 3 2 5 2 1 8 4
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 10:38pm On Mar 10, 2024
Obnoxious2001:
This your budget grin.

You could have stated this first so @jonescosmos no for dey call big names grin grin
Honestly ooo. grin grin grin grin the load he wants to power sef fear me.

He should just do a 12v or 24v setup. Chikina.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 6:54pm On Mar 10, 2024
brightk:
12pcs of 550w in series is over 500v sir
oops, my bad, was actually in traffic while responding. I meant to say 12pcs in a 6 Series 2 Parallel is still in a safe zone.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 6:36pm On Mar 10, 2024
Ferdiwar:
Please can you assist me with the spec sheet of the 625w panel you got.

I am working on expansion of my setup but the Longi panel I'm currently using is annoyingly expensive now (208k for 570w as against 165k I bought them in December).

I earlier went with the Longi over Jinko because of the current as the max current of my inverter is 13A, the Longi 570w have a max current of 13.03A while the Jinko 580w have a max current of 13.38A
https://jinkosolar.com.au/wp-content/uploads/2022/08/JKM620-625N-78HL4-V.pdf
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 4:18pm On Mar 10, 2024
dbshaywhy:
My plan solar system set up.

48v system

6pcs of jinko-solar-550w

3.5kva inverter, hybrid or stand alone with cc
(can you please recommend a good brands from the choosing option)

5kwh lithium battery

Professional in the house, I need your input...
@jonescosmos
@valto
@Techgeek777
@Bassdow
@isangjohnson
@dollarnaira
@other professionals in the

Please, I need this urgently before price shoot up again please.....
> I will always recommend Hybrid over External CC (Except for High-end CCs).

> For High end Inverters, choose among: Huawei, Schneider, Deye.
For Voltronic based Inverters go for: Growatt, MPP Solar, Felicity, Senre, (Many More in this class.

> If you must opt for external CC, go for an 80A to 120A CC. (e get why)

> For Battery (Patented): Huawei, Deye, Dyness, nRuit, Blue Carbon, Felicity, CWorth, ETC
> For Battery (Assembled): Contact @Valto straight away.

> For Solar Panels: Make sure 6pcs (I recommend 12pcs) will be enough to charge your battery to full while carrying your loads simultaneously.
Considering that Pmax (NOCT) of Jinko 550w is about 409Wp, 6x409=2,454Kwp, Which might not be sufficient for you on an cloudy day. But 12x409=4,908Kwp (Fair for daytime Charging and Loads), moreover 12pcs of Jinko in series is still in the safe zone for a 500V PV Hybrid Inverter during an STC.
Grid is no longer an option or alternative to dark or cloudy days.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 2:24pm On Mar 10, 2024
jidobaba:
Please is there anyone that bought from fouani online? Apart from the site being laggy, after I made card payment I can't see my order anymore. It has been over 1 hour Order page is just blank. No receipt/processing and I hope I'm safe guys.
What site did you order from?, reach out to them via email and calls.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 12:44pm On Mar 10, 2024
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.
Oh Johnson, so sorry for this terrible experience, but I will blame you a bit. You knew I base in Abuja, You know my capabilities, You have my number, you should have just rang me up.
But in all, has this issue been resolved?.
So sorry you fell into the hands of Engineers without Knowledge.

I had gone to correct an installation last year where an installer connected 2units of Felicity LPBF48300 in series, to 2 Units of Growatt which were in parallel originally. The instruction was to replace 8Pcs of Tubular Batteries with 2x LPBF48300. Thank God one of the LPBF48300 popped fuse immediately with a loud explosion.

The guy still went ahead and connected LPBF48300 in parallel later on without investigating the cause of that explosion.
The client later discovered that one of the batteries wasn't discharging and charging. And that was how I was contacted.

Moral: Be careful of Engineers without Knowledge.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 4:21pm On Mar 09, 2024
swagifted:
Dear fellow solar warriors, please persons that have used deye hybrid inverters in Nigeria what was the most common issues you encountered if any.
I am using Deye hybrid inverters, no issues at all so far. Just do your installations right. Don't patronize quarks.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 7:24am On Mar 09, 2024
Juror:
Did they deliver them ? What was their delivery cost like?
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

Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 2:05pm On Mar 08, 2024
yemi2plus:
If you're buying panels from Fouani, buy them NOW. Dollar is going up again.
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.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 5:56pm On Oct 06, 2023
Elcapitan0:
Hello guys and good evening. Pleasei just installed my felicity CC and i'm having trouble connecting it to the inverter. I'm using a normal network cable and I've tried both the RS-232 and the RS-485 port on the inverter but it just flashes for 10 seconds and goes off. Please how can i go about this as i dont want to overcharge this battery if both AC and panel is available?
Inverter is IVPS3524
Charge controller is SCCM8048

Thanks
Please read this

Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 7:29pm On Oct 03, 2023
ojesymsym:
I read that the iPhone 15 has a feature that limits battery to just 80% to prolong the life of the battery. I thought this was bad practice years ago, has this changed? If so, can we adapt it to renewable energy?
Yes you can. Matter of fact this feature has been around for a while. Laptops, Phones, etc has been using this feature at least since 10 years+

I have seen this feature on my Deye Inverter (Disable Floating Charge) which limits the batteries from floating charge..

I can't tell of other inverter vendors though.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 9:44pm On Oct 02, 2023
FEGEITOK:
Samsung SSD 870 EVO 1TB
You should try a PCIe Gen5 NVMe M.2 SSD with blisteringly fast 12,400MB/s read and write speeds with an endurance of 1000TBW per 1TB of capacity. That gives you 2000TBW for the 2TB capacity drive, or enough to rewrite 1TB of data every single day for over five years on a compatible mainboard, thank me later.

Files and Bandwidths have grown bigger lately, after my Inverter setup I decided that I will have to do away with my 32TB WDMyCloudEX4100 NAS and 24TB HPE Proliant DL380Gen9 Server. They became too slow for my liking.
Despite having laptops like HP Omen, Lenovo ThinkPad P43s, HP AIO 24-df1270, HP ProBook 450 G8, all with minimum of 2TB NVMe SSD, I still find it slow pulling files from my NAS and HPE Server especially media files.
So I decided It's time to go full blown SSD.

My latest config goes like:

To replace my 32TB WDMyCloudEX4100 NAS I will use:
ASUS ROG Maximus Z790 Hero
LGA 1700(Intel®13th&12th Gen) ATX Gaming Motherboard
Intel Core i9-13900K Gaming Desktop Processor 24 cores (8 P-cores + 16 E-cores) with Integrated Graphics - Unlocked
PCIe 5.0, DDR5,20+1 power Stages,
2.5Gb LAN, WiFi 6E
Bluetooth V5.2,
2X Thunderbolt 4 Ports,
5xM.2, Thunderbolt™ 4/USB4)
5x4TB Seagate FireCuda 540 PCIe NVMe Gen5


To replace my 24TB HPE Proliant DL380Gen9 Server, I will use:
HPE DL380 Gen10 Plus 8LFF CTO Server
2x Intel Xeon-Silver 4314 16 Core Processor
2x 256GB DDR4 3200
16x 1.92GB SAS SSD
2x 10G SFP

etc.

All these items have arrived except the Intel Core i9-13900K Proc.

Pictures of my setup will be made available on demand. grin grin grin
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 12:47pm On Oct 02, 2023
FEGEITOK:
Speaking of the value of knowing your stuff inside out.

I decided to update the BIOS of my main laptop on Saturday morning. It turned out to be the biggest mistake of my life. I bricked my primary workhorse and had to literally cancel all my schedule for Saturday and Sunday.

I have been updating BIOS all my life. But this one went south. The laptop would not come on again. To be more specific, it would turn on, but only into BIOS. It would not boot into windows. I tried every trick in the world same thing. I downloaded and created a USB based Windows Boot disk, but it would not load. I downloaded recovery ISOs and used them to create a USB stick that can allow me access the system, no luck.

I then assumed I have a bad USB stick and went to a repair man and he gave me a his own, same thing. Guy was stumped, referred me to someone else who was busy. I went home, kept trying all of Saturday and all of Sunday then luck smiled on me towards evening.

Then something occured to me. As a matter of practice and principle, I try to duplicate how enterprise networks are run at home. It means that I standardized on a particular laptop brand (Lenovo), a particular series of that laptop and that I have several of such laptops at home. I have Thinkpads X series several generations. I have more than one of each generation. X240, X250 and X260

So I said, when I bought this laptop, I swapped out the 250gb SSD for the 1TB SSD from my retired laptop. What would happen if I put back that original 250gb SSD. I tried it and the laptop would come on. So, the problem was with the drive and not the motherboard.

I took it out and returned the 1TB SSD same thing.

I then recalled that they said that X240 and X250 are literally the same internally. So I took out my X250 that I rarely use from storage and it would not come on, the power button would blink and make some noises and then go off. I removed the external battery, same thing. I removed the internal battery, same thing. I disconnected the BIOS battery, reconnected it, reinstalled the internal and external batteries and it came to life. I then removed the SSD that came with the X250 and inserted my 1TB SSD and it roared to life.

If I did not know my onions, I would never have resolved this at home and all by myself.

This story also illustrates for those IT guys who have never operated in an enterprise environment why enterprises always standardize infrastructure. It makes troubleshooting a lot easier. It also explains why you must duplicate the enterprise environment if you want to relate well with your peers inside.

In my days as a hardware and software guy. I was not that guy who fixed a bad PC by formatting it. I never did so. I always repaired the OS. I was very adept at those tools. Which guy would you prefer? A guy that does the easy fix or the guy who tried to understand what went wrong and then fixed it. Who knows the technology better? Who would you want in your corner when you got into IT trouble? I did not mind how long it took.

Even before repairing, I would use Antivirus Boot CDs to throughly disinfect the system because the primary cause of those failures was infection from human error. I would even replace the corrupted operating system files.

That quest to understand the underlying technology and understand how things work and fix the problem instead of just refreshing everything made me extremely knowledgeable of operating systems and led me to such tools like Winternals amongst others. Knowledge that I have sadly rarely ever used since I switched camp. Winternals was so good that Microsoft ended up buying the company and absorbing its founders, I can never forget Mark Russinovich. How much sadness I felt when Microsoft said they would discontinue that line of products. How many hardware and software guys knew that such tools existed? Their solution was to get pirated CDs and reinstall Windows. I never did that.

Neither can I forget The PC Upgrade & Maintenance Guide by Mark Minasi.

In the event that that had to be done, I would extract all the license keys from the installed software before ever formatting. So that the user would not lose his or her investments. I invested so much and found out that private individuals cannot pay for the labor that I put in. They were always willing to pay for hardware but never for the brains that did the work.

I would also save the user's data. I would ransack all corners of the hard drive and I would even take notes of where I got what data from so that at the end of the day, when I was done, the PC would be the same as it was before the trouble.

Then I plotted my pivot from that sort of business and thank God I did. Where I am today and where I was then is literally as different as the night is as different from day.
What you needed to do from the beginning was a NAND hard reset, and that's what you ended up doing when you sterved the laptop of power by taking out any sources of power to the mainboard.

Your SSD frying up was due to multiple power interruptions when you were power cycling the system because it was up and running before you went upgrading the firmware.

My Disaster Recovery days and knowledge would have reminded me of removing the SSD at the 3rd failed bootup. Good luck.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m):
Obnoxious2001:
Please I need suggestions and opinion.

I have this 24v 5.12kw blue carbon lithium battery, that has been drained. The problem now is it has refused to come up.

I have tried using nepa to charge via the inverter , it not waking up, the solar panels too is not working as well...

How do I solve this problem?
Am thing of using an external 24v automatic low voltage disconnect switch to prevent further occurrence in the future, but I have no idea if such system is available.

Beside the inverter is a transformer based hybrid inverter with 100mppt controller.

I can't send image Now because of nairaland palava.

Senior men please come to my aid
Because your Lithium battery pack needs to sense battery voltage before starting to charge, It can't help you when it sees 0V from the battery cells (0v Because your BMS has shut you off due to over DOD).

So, to wake up your Battery Pack, You need to Jump start the battery just like you do to your car. But bear in mind that you have a 24v battery pack.
Get a 24V external Battery Charger or An Adjustable DC Power Supply or even 2pcs of 12v Batteries that are charged up, Set the readings to about 27V 10A, Hook up the terminals Negative to Negative and Positive to Positive Terminals of the Charger and Battery respectively.

If your BMS is inbuilt you might need to open the Battery Box because the terminals you have access to outside the box are P- and B+, and you need to hook up your external DC power supply to B- and B+.

Once you do this and certisfying other Input conditions from your Inverter, Mains and Solar Panel sources, etc, your Battery should resume charging, then unhook the external power sources you applied earlier.

If this did not help, then there might have been a fault in your BMS.

I hope this helps. Cheers
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m):
bassdow:
love it when I see like minds in here.

Additonally or Alternatively, @FEGEITOK could block all external sites, and only leave a whiteList of a couple essential to work purpose. You shouldn't have access to nairaLand if it's not useful for your jobDescription. Also you should have a way to view any user's PC screen. That alone would put them on their toes. Time Limit all PCs so it locks them out outSide Office Open hours.
Disable USB ports if need be.

Put consideration of skill level of the uers, so they don't easily find work-arounds.

Just have a central PC (server) where all other PCs access internet from. That way, you cold allow access based on staff position e.g MD, casshier, etc
These tweaks you have mentions are one click away from me to be implemented.
Some have also become deprecated especially the bolded statements above.
An SNMP Server takes care of user activities in your workplace by logging all activities (Keyboard Strokes, Mouse clicks, Files Fingerprinting, etc on their PCs rather than spying on their Screens.
Putting time limits on Users PCs at workplace was retired by Covid Outbreak when people were mandated to work remotely, which is still happening till date.
Disabling USB ports is now a full option in BIOS and UEFI interfaces, you can do that if the need be but it has been deprecated also by the use of cloud services people mostly no longer have needs to carry usb storage devices.
You no longer need a shared internet from a Central PC, This has become deprecated. An Internet Gateway/Firewall can do this for you by ACL

I just read a couple of comments where people are asking for where to switch to or concentrate on because it makes you more money. Well I would say that despite the new or modern day nomenclatures that has evolved in computations eg, AI, Coding, CyberSecurity, etc, You must know the basics in any field you are to venture into.

I am where I am today because I have had a practical hands on experience with equipments like: Alcatel, Ericsson, Huawei, TP-Link, DLink, Juniper, NEC, Nokia, Ciena, ZTE, Zycel, Orinoco, Magnums, WAVELAN, Synoptics, Kalpana, Mitsubishi, Meraki, Belkin, Fortinet, Sophos, Cyberoam, SonicWall, Calix, Aruba, Aris, Avaya, Cisco, Motorola, Ubiquiti, CommScope, Control4, EnGenius and the list goes on.

So imaging me and someone without these experiences in a classroom to study CyberSecurity because he has been told that it makes you more money. Or someone who had just graduated from the University and has been told to focus on CyberSecurity because that's where the money is now. I leave you to be the judge.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 10:49pm On Sep 27, 2023
litaninja:
Hair dryer?
oops, grin grin grin shocked shocked shocked didn't see the hair ooo. thought it was a Dryer Machine ooo.

But which kind of rhetoric question be this one na? Johnson how ca a Hair Dryer have a compressor?
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 5:52pm On Sep 27, 2023
isangjohnson:
Does standing hair dryer machine have compressor?
No, it has a motor.
Some has direct drive motor (Directly attached to the tub) and some use drive belts to propel tub. And the agitator of course.
Satellite TV TechnologyRe: Solar Energy, A Complement To FTA by jonescosmos(m): 10:46am On Sep 24, 2023
samir101ng:
I have been reporting and posting this on the thread & DIY Solar Telegram group for a while now. I attended the conference flying in from Abuja for three 3 days. The conference this year was even more massive and had a lot of Vendors in attendance from Fronius, Victron, SMA, Anern, Felicity, TBB Power, Xtra Power, SRNE, etc. I will post some pictures from the event soon. The conference has had maximum exposure as the current minister of power Mr Adelabu was at the event. I have also been seeing their sponsored posts on linkedin, youtube and online.
Please drop us the Telegram Group Link Here. Thanks

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