Welcome, Guest: Register On Nairaland / LOGIN! / Trending / Recent / New
Stats: 3,171,803 members, 7,882,806 topics. Date: Sunday, 07 July 2024 at 03:23 PM

Solar Energy, A Complement To FTA - Satellite TV Technology (1738) - Nairaland

Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2179346 Views)

UPS Back-up, Also A Complement To FTA / FTA Frequency / Cctv Installation A Complement To Fta And Solar Energy (2) (3) (4)

(1) (2) (3) ... (1735) (1736) (1737) (1738) (1739) (1740) (1741) ... (1766) (Reply) (Go Down)

Re: Solar Energy, A Complement To FTA by kiekie1(m): 1:48am On Jun 10
HURRY! DISCOUNTED PRODUCT PRICES!!!

BONA DC/AC REFRIGERATOR & FREEZER:
118L Freezer ..... 370,000
168L Freezer ...... 470,000
218L Freezer .......620,,000
318L Freezer ...... 735,000
200L Standing freezer ..... 780,000
112L Fridge ........ 555,000
202L Fridge ........ 685,000


SOLAR PANELS:
Canadian 605w mono perc ....... 175k
JINKO 475w tiger pro series ...... 145k
JINKO 555w tiger pro series ...... 160k
JINKO 580w tiger neo series ..... 175k
JINKO 625w tiger neo series ..... 195k

PORTABLE SOLAR GENERATOR:
- Galaxy 1000w with built in 12.8VDC-100AH prismatic cells lithium battery ... 700k

- Galaxy 2000w with built in 25.6VDC-200AH prismatic cells lithium battery .... 1.350m

- Xtra 300w (solar panel inclusive) .... 550k
- Xtra 600w (solar panel inclusive). ....780k
- Xtra 1000w (solar panel inclusive) ...850k

- SMS mppt 12-48v 40a ..... 120k
- SMS mppt 12-48v 60a ..... 150k
- SMS mppt 12-48v 100a ... 220k

RELOCATION SALES (A MONTH USED)! PRISTINE CONDITION!! LUCKY BUYER!!!
* ANENJI 3500w 24v pure sinewave hybrid inverter "can function without battery" (4000w / 500vdc inbuilt MPPT) "com cable accessories, product manual & carton intact" ...... 380k


For further enquiry & purchase;
Contact,
Smartcell global services
CALL LINE::::: 081-350-31951
WHATSAPP::: 081-703-85620

Re: Solar Energy, A Complement To FTA by Peterlove11: 2:12am On Jun 10
HeavenlyBang:


When you factor in shipping, Fouani will always be cheaper.

Gennex quoted me 75k for shipping of Jinko panels, I bought same panels from Fouani with free shipping.
Same here, bought jinko panels from Foauni and had it delivered at my address free of charge. Oftentimes their jinko prices are even cheaper than other suppliers and yet they are still able to ship free of charge. Can't find a better bargain than that
Re: Solar Energy, A Complement To FTA by diabeticdeals: 4:47am On Jun 10
Na why them say you dey respond like AI be this 😂
jonescosmos:
I have never had this kind of issues bro.
Please note that the MPPTs are not connected in series, rather they are connected in parallel with some internal diodes that prevents each string from back feeding to the other.

I have 4 Strings so far are as follows:

LATEST DEYE 8KW + 8KW:
INVERTER 1 MPPT 1:
STRING 1: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
STRING 2: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
INVERTER 2 MPPT 2:
STRING 1: 8X625W JINKO SOLAR PANELS (STC 55.70V V x 8 = 445.6V)(NOTC 42.61V V x8 = 340.88V)
STRING 2: 10X540W FELICITY SOLAR PANELS (STC 49.55 V x 10 = 495.5V)(NOTC 42.24 V x10 = 422.4V)

PREVIOUS DEYE 8KW:
MPPT 1:
STRING 1: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
STRING 2: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
MPPT 2:
STRING 1: 8X625W JINKO SOLAR PANELS (STC 55.70V V x 8 = 445.6V)(NOTC 42.61V V x8 = 340.88V)
STRING 2: 10X540W FELICITY SOLAR PANELS (STC 49.55 V x 10 = 495.5V)(NOTC 42.24 V x10 = 422.4V)

PREVIOUS DEYE 16kw:
MPPT 1:
STRING 1: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
STRING 2: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
MPPT 2:
STRING 1: 8X625W JINKO SOLAR PANELS (STC 55.70V V x 8 = 445.6V)(NOTC 42.61V V x8 = 340.88V)
MPPT 3:
STRING 2: 10X540W FELICITY SOLAR PANELS (STC 49.55 V x 10 = 495.5V)(NOTC 42.24 V x10 = 422.4V)

My systems worked flawlessly on Deye 16KW, Deye 8KW, and Parallel Deye 8KW + 8KW as well as every other installations I have done, even non Deye Inverters.
I will post you a picture of my Voltages tomorrow afternoon.

I still believe you should investigate further as there might be a problem with your Panel Strings or your connection on the terminals inside the Inverter. I have seen cases were people misinterpreted the terminals. Please take a good look at the attached pictures.
Note that Positive from String 1 and Positive from String 2 are next to each other (Parallel) and Negative From String 1 and Negative from String 2 are next to each other likewise (parallel).
The issue you experienced is only possible when you connect Positive and Negative of same string next to each other.


EACH MPPT AND STRING HAS IT'S OWN VOC, WHICH IS 500V
SO YOU HAVE:
16KW
MPPT1 STRING 1 VOC=500V
MPPT1 STRING 2 VOC=500V
MPPT2 STRING 1 VOC=500V
MPPT2 STRING 2 VOC=500V
MPPT3 STRING 1 VOC=500V
MPPT3 STRING 2 VOC=500V

8KW / 5KW
MPPT1 STRING 1 VOC=500V
MPPT1 STRING 2 VOC=500V
MPPT2 STRING 1 VOC=500V
MPPT2 STRING 2 VOC=500V

My Most recent project:
50KW
MPPT1 STRING 1 VOC=1000V
MPPT1 STRING 2 VOC=1000V
MPPT2 STRING 1 VOC=1000V
MPPT2 STRING 2 VOC=1000V
MPPT3 STRING 1 VOC=1000V
MPPT3 STRING 2 VOC=1000V
MPPT4 STRING 1 VOC=1000V
MPPT4 STRING 2 VOC=1000V


Re: Solar Energy, A Complement To FTA by mctfopt: 6:19am On Jun 10
tivta:
How come no one is talking about bluetti?

BLUETTI AC200MAX
Size: 2.048kwh expandable to 8,192Wh
Price : $1,199.00 or ₦1,798, 500 cost price without shipping fees included

BLUETTI AC180
Size: 1.152kwh
Price: Starting from $899.00 or ₦1,348,500 price without shipping cost included



BLUETTI AC60
Size: 403Wh
Price: Starting from $599.00 or ₦898,500 cost price without shipping cost included

AC200MAX+B300 | 2,200W 5.120kWh
US$3,198.00 or ₦4,797,000 cost price without shipping fees included.


By now you must've seen why it's not so hot here. The cost and the size (kWh) is an issue.

You can get a better deal DIYing the thing than attempting to buy a Bluetti.

1 Like

Re: Solar Energy, A Complement To FTA by mctfopt: 6:21am On Jun 10
diabeticdeals:
Na why them say you dey respond like AI be this 😂

I like his replies, I like detailed replies. Leaves no room for doubts.

7 Likes

Re: Solar Energy, A Complement To FTA by tivta(m): 6:34am On Jun 10
mctfopt:


BLUETTI AC200MAX
Size: 2.048kwh expandable to 8,192Wh
Price : $1,199.00 or ₦1,798, 500 cost price without shipping fees included

BLUETTI AC180
Size: 1.152kwh
Price: Starting from $899.00 or ₦1,348,500 price without shipping cost included



BLUETTI AC60
Size: 403Wh
Price: Starting from $599.00 or ₦898,500 cost price without shipping cost included

AC200MAX+B300 | 2,200W 5.120kWh
US$3,198.00 or ₦4,797,000 cost price without shipping fees included.


By now you must've seen why it's not so hot here. The cost and the size (kWh) is an issue.

You can get a better deal DIYing the thing than attempting to buy a Bluetti.


Yea expensive but undoubtedly very superior quality and great after sales service plus Long term warranty and easy setup.
Re: Solar Energy, A Complement To FTA by Hybrid600: 6:40am On Jun 10
It's who he is. He loves everything detailed even down to when there is an issue and you need he's assistance, you must provide good details for him to be able to render assistance and he's been very helpful.



mctfopt:


I like his replies, I like detailed replies. Leaves no room for doubts.

2 Likes

Re: Solar Energy, A Complement To FTA by diabeticdeals: 6:49am On Jun 10
I actually do too. Just wanted to rile him up a little bit 🤭
mctfopt:


I like his replies, I like detailed replies. Leaves no room for doubts.
Re: Solar Energy, A Complement To FTA by diabeticdeals: 6:49am On Jun 10
Kudos to him all day, everyday.
Hybrid600:

It's who he is. He loves everything detailed even down to when there is an issue and you need he's assistance, you must provide good details for him to be able to render assistance and he's been very helpful.



Re: Solar Energy, A Complement To FTA by primeelectronix: 7:08am On Jun 10
RickyM:
After contacting Techland, I realized it would be better I go with FOUANI anyway.
160-220k for waybill and 4480 per 2 panels for packaging is no joke lol 😂

AUTHORIZED DEALER ON JINKO SOLAR PANEL,GROWATTS INVERTER AND PYLONTECH LITHIUM ION BATTERIES

AVAILABLE ITEMS RIGHT NOW!!!!!!!!!!!!!!

380WATTS FIRMAN SOLAR PANELS

475WATTS JINKO SOLAR PANELS
555WATTS JINKO SOLAR PANELS
580WATTS JINKO SOLAR PANELS
625WATTS JINKO SOLAR PANELS...

GROWATTS INVERTERS
SPF 3000TL HVM 48
SPF 5000TL HVM P
SPF 3500ES
SPF 5000ES
SPH 3600TL BL UP
SPH 5000TL BL UP
SPH 8000TL3 BH UP
SPH 10000TL3 BHUP

PYLONTECH LITHIUM ION BATTERIES

US2000C 2.4KWH
US3000C 3.5KWH
UP5000 4.8KWH
UF5000 5.12KWH
HORIZONTAL AND VERTICAL BRACKET FOR ALL MODELS OF BATTERIES
EXTERNAL CABLE KIT FOR USC(CONNECT BATTERY TO INVERTER ALSO AVAILABLE)

ALL ITEMS ARE VERY MUCH AVAILABLE AND WILL BE DELIVERED WITH EASE..

NO NEED TO RUN TO ARENA OR ALABA ANYMORE...
WE ARE HERE TO SERVE YOU SO WELL...
WE DELIVER STRAIGHT TO YOUR SITE AT A VERY FRIENDLY COST.
PRICES ARE FRIENDLY

CONTACT NUMBER...09074488146 OR SEND WHATSAPP MESSAGE WITH THE SAME NUMBER...
WE CAN DELIVER ANYWHERE...LAGOS,OYO,OGUN,BENIN,ASABA,ABUJA,IBADAN,PH,IMO ETC
WE ARE VERY ACTIVE.... TO ALL THE SOLAR ENGINEERS,KINDLY BRING DEALS AND A WARMFUL DISCOUNT AWAITS YOU.
Re: Solar Energy, A Complement To FTA by mctfopt: 7:12am On Jun 10
tivta:


Yea expensive but undoubtedly very superior quality and great after sales service plus Long term warranty and easy setup.

I'll rather buy grade A cells and do my setup. No way I'm buying Bluetti at that their price.

6 Likes

Re: Solar Energy, A Complement To FTA by mctfopt: 7:13am On Jun 10
diabeticdeals:
I actually do too. Just wanted to rile him up a little bit 🤭

Lol. Thought as much.
Re: Solar Energy, A Complement To FTA by swagifted(m): 7:36am On Jun 10
i have never successfully used it to control dstv decoders fully...have you tried?
Xanderone:


Actually I just thought about something now as you mentioned this. One of my tuya devices is a remote control that I use to operate the TV, sound system and decoder from the phone. You can programme almost any remote, and I mean almost any remote, to it and control it on your phone from anywhere in the world. It's just that it doesn't have facility for timer.
Re: Solar Energy, A Complement To FTA by bbally: 7:45am On Jun 10
Xanderone:


Bare negative cable that was cellotaped?

Just a question. Did you cut off the MC4 plugs on your solar panel?

The negative cable attached to last panel had a wound originally which I had tape before using for the installation got weak due to weather, rain water got into it and unfortunately touching the panel frame.
Re: Solar Energy, A Complement To FTA by jrupa(m): 8:55am On Jun 10
Greetings House, please is it safe to series 9units of 445W Half Cut Longi Solar with VOC of 49.4, Vmp of 41.2V and 144cells on an High Voltage Felicity IVEM 5KVA Inverter that has maximum Solar Voltage as 500V
Re: Solar Energy, A Complement To FTA by Juror: 9:00am On Jun 10
jrupa:
Greetings House, please is it safe to series 9units of 445W Half Cut Longi Solar with VOC of 49.4, Vmp of 41.2V and 144cells on an High Voltage Felicity IVEM 5KVA Inverter that has maximum Solar Voltage as 500V


I believe it should be safe

2 Likes

Re: Solar Energy, A Complement To FTA by Juror: 9:03am On Jun 10
moneyest:


Techland's canadian 665 watts = 182875 a piece

27 pieces = 182875 x 27 = #4,937,625

Let's assume way billing is #200,000

Crating is #4,480 per 2 panels so for 27 panels there are approximately 14 pairs

4,480 x 14 = #62,720

Total cost for the 27 Canadian panels from Techland = #4,937,625 + #200,000 + #62,720 = #5,200,345

625w Jinko panel from fouani is #184,800

This means I'm buying 1 Jinko watt at 184800/625 = #295.68kobo

But for the Canadian panels the total watts I got is 665w x 27pieces = 17955 watts and you recall I spent #5,200,345 total to get them

This means I'm getting 1 Canadian watt at
5200345/17955 = #289.63kobo

Canadian panels is saving me #295.68 - #289.63 = #6.05 per watt

If I must get the exact same wattage from fouani's Jinko I'll be spending #295.68 per watt x 17955watts = #5,308,934.40

But I got same watts at Canadian for #5,200,345 which means Canada saved me #5,308,934.40 - #5,200,345 = #108,589.40 despite the additional crating and shipping fees.

So you see... Even with fouani's free shipping, Canada still stands tall

Nothing is actually free even in Freetown cry






Nice expose!

3 Likes

Re: Solar Energy, A Complement To FTA by jrupa(m): 9:09am On Jun 10
Juror:

I believe it should be safe

Thanks for your response.

I'm actually thinking same too but I have never tried it on Felicity Inverters before so I was a bit unsure and I needed some assurance to go ahead.
Re: Solar Energy, A Complement To FTA by brightk(m): 12:42pm On Jun 10
Ferdiwar:
Update on my setup.

Sometime last month I connected all my AC to the smart load of my inverter, and noticed that the inverter was going off and on repeatedly for like 5x before stabilizing back on. This would happen severely in a day before the sun goes down as I discovered it only happens during the day.

As a result I reverted back to the previous connection and disabled the smart load thinking that was my issue, but it still persisted, so I did some reading online and concluded it might be a software bug.

I emailed Deye and requested for diagnosis and update which they did by pushing a remote firmware update to the inverter, yet the issue continued (in my mind I was like I spent huge money to buy a faulty batch of an expensive inverter). I sent an update email yesterday to Deye explaining that the issue is not yet resolved (yet to get an update though) after it happened for the 2nd time in the morning (around 11am). At this point I thought it wise to calm down and observe the inverter when next it happens rather than be angry, so I stayed put in front of the inverter and watched it.

Few minutes later it happened again this time around I was watching the screen and boom I caught it in the act and it happens to be that the voltages of 2 strings of panels attached to the 2 MPPTs of the inverter exceeded the max 500v of the inverter (string 1 5x Longi 570w panels was pumping 240v+ as at that time while string 2 5x Jinko 625w panels were pushing over 265v both exceeding the 500v max voltage).

As I saw that I quickly switched off string 1 breaker and the inverter stabilized instantly which suggests that the input of the 2 MPPTs are somehow connected in series or something like that as one of the MPPTs can take 500v alone but the 2 MPPTs combined together is still 500v.

No matter what you do, do not exceed the max voltage of your inverter and take not of the tolerance of the VOC of your panels when connecting your panels to your CC or inverter to avoid stories just in case your inverter or CC is not equipped to handle any form voltage spike above the rated max voltage of the inverter or CC.


@Jonescosmos the 500v is for the 2 MPPTs after all
y all this big brands nor de give deep info on this 2 mppt stuff. Me i was tinking each mppt is 500v max but u cañ share d toral pv wattage amongst both
Re: Solar Energy, A Complement To FTA by brightk(m): 12:45pm On Jun 10
Juror:

Nice expose!
wisdom. U sure say u nor b d techland guy.. cos this is how he analyses dollar per watt oo..

1 Like

Re: Solar Energy, A Complement To FTA by brightk(m): 12:47pm On Jun 10
jrupa:
Greetings House, please is it safe to series 9units of 445W Half Cut Longi Solar with VOC of 49.4, Vmp of 41.2V and 144cells on an High Voltage Felicity IVEM 5KVA Inverter that has maximum Solar Voltage as 500V


u re safe.. i just factored in cold days into ur calc.. we nor de abroad even if i put 1.1 temp coefficient u are still safe grin
Re: Solar Energy, A Complement To FTA by jrupa(m): 12:55pm On Jun 10
brightk:
u re safe.. i just factored in cold days into ur calc.. we nor de abroad even if i put 1.1 temp coefficient u are still safe grin
Thanks so much for your feedback. I'm grateful. Although someone was saying it would be too much for the inbuilt Charge Controller.
Re: Solar Energy, A Complement To FTA by jonescosmos(m): 12:58pm On Jun 10
Take a look at my Voltages on both Inverters this morning as promised.
2x 8KW According to the MPPTs and their Strings as I outlined earlier.

Ferdiwar:
Update on my setup.

Sometime last month I connected all my AC to the smart load of my inverter, and noticed that the inverter was going off and on repeatedly for like 5x before stabilizing back on. This would happen severely in a day before the sun goes down as I discovered it only happens during the day.

As a result I reverted back to the previous connection and disabled the smart load thinking that was my issue, but it still persisted, so I did some reading online and concluded it might be a software bug.

I emailed Deye and requested for diagnosis and update which they did by pushing a remote firmware update to the inverter, yet the issue continued (in my mind I was like I spent huge money to buy a faulty batch of an expensive inverter). I sent an update email yesterday to Deye explaining that the issue is not yet resolved (yet to get an update though) after it happened for the 2nd time in the morning (around 11am). At this point I thought it wise to calm down and observe the inverter when next it happens rather than be angry, so I stayed put in front of the inverter and watched it.

Few minutes later it happened again this time around I was watching the screen and boom I caught it in the act and it happens to be that the voltages of 2 strings of panels attached to the 2 MPPTs of the inverter exceeded the max 500v of the inverter (string 1 5x Longi 570w panels was pumping 240v+ as at that time while string 2 5x Jinko 625w panels were pushing over 265v both exceeding the 500v max voltage).

As I saw that I quickly switched off string 1 breaker and the inverter stabilized instantly which suggests that the input of the 2 MPPTs are somehow connected in series or something like that as one of the MPPTs can take 500v alone but the 2 MPPTs combined together is still 500v.

No matter what you do, do not exceed the max voltage of your inverter and take not of the tolerance of the VOC of your panels when connecting your panels to your CC or inverter to avoid stories just in case your inverter or CC is not equipped to handle any form voltage spike above the rated max voltage of the inverter or CC.


@Jonescosmos the 500v is for the 2 MPPTs after all

1 Like

Re: Solar Energy, A Complement To FTA by FEGEITOK: 1:04pm On Jun 10
moneyest:


Techland's canadian 665 watts = 182875 a piece

27 pieces = 182875 x 27 = #4,937,625

Let's assume way billing is #200,000

Crating is #4,480 per 2 panels so for 27 panels there are approximately 14 pairs

4,480 x 14 = #62,720

Total cost for the 27 Canadian panels from Techland = #4,937,625 + #200,000 + #62,720 = #5,200,345

625w Jinko panel from fouani is #184,800

This means I'm buying 1 Jinko watt at 184800/625 = #295.68kobo

But for the Canadian panels the total watts I got is 665w x 27pieces = 17955 watts and you recall I spent #5,200,345 total to get them

This means I'm getting 1 Canadian watt at
5200345/17955 = #289.63kobo

Canadian panels is saving me #295.68 - #289.63 = #6.05 per watt

If I must get the exact same wattage from fouani's Jinko I'll be spending #295.68 per watt x 17955watts = #5,308,934.40

But I got same watts at Canadian for #5,200,345 which means Canada saved me #5,308,934.40 - #5,200,345 = #108,589.40 despite the additional crating and shipping fees.

So you see... Even with fouani's free shipping, Canada still stands tall

Nothing is actually free even in Freetown cry







My brother in watts/calculations, I had to do a similar calcution before deciding to buy panels from one vendor instead of the other.

Nice to see you also crunch the numbers instead of relying on mere guts or whims and caprices.

1 Like

Re: Solar Energy, A Complement To FTA by go4success(f): 1:34pm On Jun 10
Nice thread
Re: Solar Energy, A Complement To FTA by HeavenlyBang(m): 2:07pm On Jun 10
moneyest:


Techland's canadian 665 watts = 182875 a piece

27 pieces = 182875 x 27 = #4,937,625

Let's assume way billing is #200,000

Crating is #4,480 per 2 panels so for 27 panels there are approximately 14 pairs

4,480 x 14 = #62,720

Total cost for the 27 Canadian panels from Techland = #4,937,625 + #200,000 + #62,720 = #5,200,345

625w Jinko panel from fouani is #184,800

This means I'm buying 1 Jinko watt at 184800/625 = #295.68kobo

But for the Canadian panels the total watts I got is 665w x 27pieces = 17955 watts and you recall I spent #5,200,345 total to get them

This means I'm getting 1 Canadian watt at
5200345/17955 = #289.63kobo

Canadian panels is saving me #295.68 - #289.63 = #6.05 per watt

If I must get the exact same wattage from fouani's Jinko I'll be spending #295.68 per watt x 17955watts = #5,308,934.40

But I got same watts at Canadian for #5,200,345 which means Canada saved me #5,308,934.40 - #5,200,345 = #108,589.40 despite the additional crating and shipping fees.

So you see... Even with fouani's free shipping, Canada still stands tall

Nothing is actually free even in Freetown cry






Well, well, well. The maths doesn't lie.

1 Like

Re: Solar Energy, A Complement To FTA by ojesymsym: 2:54pm On Jun 10
If you can control the remote itself with HA or Node Red, then it does not need to have a timer na. You can do the timing control from those apps and then use the time to trigger whatever you want it to do.
Xanderone:


Actually I just thought about something now as you mentioned this. One of my tuya devices is a remote control that I use to operate the TV, sound system and decoder from the phone. You can programme almost any remote, and I mean almost any remote, to it and control it on your phone from anywhere in the world. It's just that it doesn't have facility for timer.
Re: Solar Energy, A Complement To FTA by Ferdiwar: 3:38pm On Jun 10
Since I installed both panels the inverter have never pulled more than 12A from the panels. The highest I've seen from the CC (MPPT 2) with the Jinkos is 12.5A and about 10A+ from MPPT 2 with the Longi panels, so it's not the current but voltage.

I'll open the inverter and check the connection inside.

mank1234:


This is invalid diagnosis.

All 5kw upwards have at least 2 independent trackers.

Both mppt are independent of each other. Check your error log. My suspicion is;
One of your string especially, the 625w may be exceeding 17A Isc during tracking. Very likely when sun comes up after cloud on a rainy day. I use same panel but luckily for me my roof is steep. My inverter clips the input current to 13A Imp. If it wasn't steep I'm sure I would be running into same issues.


The model you have has 13A as Mac input with caveat not to exceed 17A Isc. Your panel is exceeding that limit that's why it happens. I'll suggest you change panel to panels with lesser Isc else the inverter would spoil in the long run. Ideal for that model is Longi 450W with Isc less than 14A

Re: Solar Energy, A Complement To FTA by Ferdiwar: 3:42pm On Jun 10
Thank you Boss for this detailed explanation, I'll open the connection panel and check the connections inside as my came with the MC4 connectors, so I'll confirm how the MC4s are connected inside.

Will update you with my findings.

jonescosmos:
I have never had this kind of issues bro.
Please note that the MPPTs are not connected in series, rather they are connected in parallel with some internal diodes that prevents each string from back feeding to the other.

I have 4 Strings so far are as follows:

LATEST DEYE 8KW + 8KW:
INVERTER 1 MPPT 1:
STRING 1: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
STRING 2: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
INVERTER 2 MPPT 2:
STRING 1: 8X625W JINKO SOLAR PANELS (STC 55.70V V x 8 = 445.6V)(NOTC 42.61V V x8 = 340.88V)
STRING 2: 10X540W FELICITY SOLAR PANELS (STC 49.55 V x 10 = 495.5V)(NOTC 42.24 V x10 = 422.4V)

PREVIOUS DEYE 8KW:
MPPT 1:
STRING 1: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
STRING 2: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
MPPT 2:
STRING 1: 8X625W JINKO SOLAR PANELS (STC 55.70V V x 8 = 445.6V)(NOTC 42.61V V x8 = 340.88V)
STRING 2: 10X540W FELICITY SOLAR PANELS (STC 49.55 V x 10 = 495.5V)(NOTC 42.24 V x10 = 422.4V)

PREVIOUS DEYE 16kw:
MPPT 1:
STRING 1: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
STRING 2: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
MPPT 2:
STRING 1: 8X625W JINKO SOLAR PANELS (STC 55.70V V x 8 = 445.6V)(NOTC 42.61V V x8 = 340.88V)
MPPT 3:
STRING 2: 10X540W FELICITY SOLAR PANELS (STC 49.55 V x 10 = 495.5V)(NOTC 42.24 V x10 = 422.4V)

My systems worked flawlessly on Deye 16KW, Deye 8KW, and Parallel Deye 8KW + 8KW as well as every other installations I have done, even non Deye Inverters.
I will post you a picture of my Voltages tomorrow afternoon.

I still believe you should investigate further as there might be a problem with your Panel Strings or your connection on the terminals inside the Inverter. I have seen cases were people misinterpreted the terminals. Please take a good look at the attached pictures.
Note that Positive from String 1 and Positive from String 2 are next to each other (Parallel) and Negative From String 1 and Negative from String 2 are next to each other likewise (parallel).
The issue you experienced is only possible when you connect Positive and Negative of same string next to each other.


EACH MPPT AND STRING HAS IT'S OWN VOC, WHICH IS 500V
SO YOU HAVE:
16KW
MPPT1 STRING 1 VOC=500V
MPPT1 STRING 2 VOC=500V
MPPT2 STRING 1 VOC=500V
MPPT2 STRING 2 VOC=500V
MPPT3 STRING 1 VOC=500V
MPPT3 STRING 2 VOC=500V

8KW / 5KW
MPPT1 STRING 1 VOC=500V
MPPT1 STRING 2 VOC=500V
MPPT2 STRING 1 VOC=500V
MPPT2 STRING 2 VOC=500V

My Most recent project:
50KW
MPPT1 STRING 1 VOC=1000V
MPPT1 STRING 2 VOC=1000V
MPPT2 STRING 1 VOC=1000V
MPPT2 STRING 2 VOC=1000V
MPPT3 STRING 1 VOC=1000V
MPPT3 STRING 2 VOC=1000V
MPPT4 STRING 1 VOC=1000V
MPPT4 STRING 2 VOC=1000V


Re: Solar Energy, A Complement To FTA by Ferdiwar: 3:44pm On Jun 10
Exactly.

@Jonescosmos please keep the detailed explanations coming.

mctfopt:


I like his replies, I like detailed replies. Leaves no room for doubts.

1 Like

Re: Solar Energy, A Complement To FTA by Ferdiwar: 3:51pm On Jun 10
I believe something is wrong then.

I'll do an indepth diagnostic on Wednesday and update you on my findings.

Thank you so much for all the responses so far.


jonescosmos:
Take a look at my Voltages on both Inverters this morning as promised.
2x 8KW According to the MPPTs and their Strings as I outlined earlier.

Re: Solar Energy, A Complement To FTA by Edrizz(m): 4:12pm On Jun 10
Ferdiwar:
Update on my setup.

Sometime last month I connected all my AC to the smart load of my inverter, and noticed that the inverter was going off and on repeatedly for like 5x before stabilizing back on. This would happen severely in a day before the sun goes down as I discovered it only happens during the day.

As a result I reverted back to the previous connection and disabled the smart load thinking that was my issue, but it still persisted, so I did some reading online and concluded it might be a software bug.

I emailed Deye and requested for diagnosis and update which they did by pushing a remote firmware update to the inverter, yet the issue continued (in my mind I was like I spent huge money to buy a faulty batch of an expensive inverter). I sent an update email yesterday to Deye explaining that the issue is not yet resolved (yet to get an update though) after it happened for the 2nd time in the morning (around 11am). At this point I thought it wise to calm down and observe the inverter when next it happens rather than be angry, so I stayed put in front of the inverter and watched it.

Few minutes later it happened again this time around I was watching the screen and boom I caught it in the act and it happens to be that the voltages of 2 strings of panels attached to the 2 MPPTs of the inverter exceeded the max 500v of the inverter (string 1 5x Longi 570w panels was pumping 240v+ as at that time while string 2 5x Jinko 625w panels were pushing over 265v both exceeding the 500v max voltage).

As I saw that I quickly switched off string 1 breaker and the inverter stabilized instantly which suggests that the input of the 2 MPPTs are somehow connected in series or something like that as one of the MPPTs can take 500v alone but the 2 MPPTs combined together is still 500v.

No matter what you do, do not exceed the max voltage of your inverter and take not of the tolerance of the VOC of your panels when connecting your panels to your CC or inverter to avoid stories just in case your inverter or CC is not equipped to handle any form voltage spike above the rated max voltage of the inverter or CC.


@Jonescosmos the 500v is for the 2 MPPTs after all



I think for SRNE inverters, it isn't like this, infact in one of the installations i had with an SRNE inverter with 8pcs of 550watt jinko panels per string n yet nothing of such has ever happened

(1) (2) (3) ... (1735) (1736) (1737) (1738) (1739) (1740) (1741) ... (1766) (Reply)

FTA Live Football Matches Announcement Thread / Free To Air Satellite Tv General Thread

Viewing this topic: Hero2t, Sapiosexuality(m), HeavenlyBang(m), bluefilm, Disco01(m)

(Go Up)

Sections: politics (1) business autos (1) jobs (1) career education (1) romance computers phones travel sports fashion health
religion celebs tv-movies music-radio literature webmasters programming techmarket

Links: (1) (2) (3) (4) (5) (6) (7) (8) (9) (10)

Nairaland - Copyright © 2005 - 2024 Oluwaseun Osewa. All rights reserved. See How To Advertise. 110
Disclaimer: Every Nairaland member is solely responsible for anything that he/she posts or uploads on Nairaland.