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

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Re: Solar Energy, A Complement To FTA by abunafiu(m): 12:09pm On Jan 04, 2016
I thought I was d only one here following Tesla batteries.
No doubt, tesla is future.


Frank kiekie1 has promised to deliver a unit of 10kwh to me as my new year benefit... Lol.
Re: Solar Energy, A Complement To FTA by kiekie1(m): 12:40pm On Jan 04, 2016
abunafiu:
I thought I was d only one here following Tesla batteries.
No doubt, tesla is future.


Frank kiekie1 has promised to deliver a unit of 10kwh to me as my new year benefit... Lol.

No doubt ! I have Xmas/new yr gift for you... Trust me
Re: Solar Energy, A Complement To FTA by JUO(m): 4:17pm On Jan 04, 2016
Liveair:


Hi JUO,
I desist from using several units of Charge Controllers together on same batt bank to avoid Cut-Out interactions.

When one Controller sees voltage from another (instead of batt voltage) as High Enough Voltage and then cuts charging.
This is similar to what you get connecting a batt charger to Solar setup.

ok sir. Noted
Re: Solar Energy, A Complement To FTA by chris81964(m): 5:27pm On Jan 04, 2016
Konnektions146:


No one CC can accept 3200w for a 24v system
You can use as many controllers as you want. Make sure you make adjustments to the settings for your equalize cycle. Also most brands will allow you to parallel multiple controllers.

Re: Solar Energy, A Complement To FTA by JUO(m): 6:06pm On Jan 04, 2016
Konnektions146:


No one CC can accept 3200w for a 24v system
bros please read the post again. I didn't in anywhere say any cc on 24v can produce 3200w. Anyways the one I have can accept 3.2kw solar panels but can only max out 1040w. I could remember Richmond has extensively explained clip off in this forum
Re: Solar Energy, A Complement To FTA by c0ogumo(m): 7:01pm On Jan 04, 2016
Happy New Year to everyone on the forum
Wishing you all a prosperous New Year.

********** SOLAR DEPOT NIGERIA ***********
Email: info@solardepotng.com Mobile: 0803 260 2629
www.solardepotng.com

1 Like

Re: Solar Energy, A Complement To FTA by monknaija: 7:22pm On Jan 04, 2016
you guys are great . have been silently learning from the gurus in house. now I have finally plunged in. house I have 12 poly panels 24v 280watts each, a episolar charge controller mmppt 60amps, my system is 48v 200ah. my question what is the best solar panel arrangement to maximise or give the best out of my panels. pls appreciate assistance want to get this aspect correct b4 moving forward....
Re: Solar Energy, A Complement To FTA by omotech: 8:45pm On Jan 04, 2016
Konnektions146:


I sell LED bulbs

89Leds and 46LEDs

about 7watts and 5watts
are they 220volts? If it is how much are you selling them? Thanks

1 Like

Re: Solar Energy, A Complement To FTA by c0ogumo(m): 2:24am On Jan 05, 2016
monknaija:
you guys are great . have been silently learning from the gurus in house. now I have finally plunged in. house I have 12 poly panels 24v 280watts each, a episolar charge controller mmppt 60amps, my system is 48v 200ah. my question what is the best solar panel arrangement to maximise or give the best out of my panels. pls appreciate assistance want to get this aspect correct b4 moving forward....

Since you have an MPPT CC, you should arrange your panels in a 3 x 4 configuration
i.e 3 panels in series and 4 panels in parallel.
If the distance from you panels to your charge controller is far, then you may consider a 4 x 3 configuration.
Let us know the outcome this setup.
Re: Solar Energy, A Complement To FTA by Saipro(m): 5:09am On Jan 05, 2016
AkoEja:
..... By the way, what bsttery would you recommend to buy now? My Chinese made batteries just died after 3 years service


Frankly, any reputable deep cycle battery which matches your budget. I use flooded lead acid batteries and favour Trojan (extensive research and availability). And the cost per kWh is perhaps the cheapest on the market (you have to consider cycle life). Hoppecke would do but seem a bit more expensive per kWh. Rolls Surrette would do fine but I've seen just one set in the country. I think it's more popular in the USA.

For the "cheaper" AGM and VRLA batteries (they're not cheaper by the time you factor in cycle life), I think Exide and Zenith rule. Luminous seems quite popular and I've seen them work fine when used right. Sadly, occassionally a battery randomly fails and Luminous seems more prone to this.

I've seen two Chinese brands work wonders over the past 2 years (most I've seen fail within 18 months) and I'm still watching them. Will give feedback when they clock 3 years.
Ask GeorgeD1 about Zenith batteries. His testimony is inspiring.

For Trojans, ask any major dealer here. Be sure to go for the 6V RE series. Those ones are engineered specifically for renewable energy cycling and use. Difference in cost is marginal. Trojan makes other long-lasting deep cycle batteries and their testimony is similar to what you might get with the RE series (but slightly shorter cycle life). If you've got deep pockets, give the Idustrial series a tryout. That's one set of batteries engineered to withstand abuse (so long as you neither overcharge nor undercharge them). They also seem to live forever. I use Trojan batteries.
For the Exide (an Indian brand), and other good Chinese brands, find a reputable dealer on this forum too. I've seen too many imitations and repackaged ones to emphasize the point.
Avoid untested brands unless your gut goes with it. Blame no one for the results, when you do.

I hope I haven't confused you with the options. Making an informed choice is the way to go as individual needs vary.

abunafiu:
I thought I was d only one here following Tesla batteries.
No doubt, tesla is future ......

Bros, you're not alone o! Who no like good thing? cheesy

1 Like

Re: Solar Energy, A Complement To FTA by Konnektions146(m): 7:33am On Jan 05, 2016
omotech:
are they 220volts? If it is how much are you selling them? Thanks

Yes , 220V,

Prices- N600-800
Re: Solar Energy, A Complement To FTA by Konnektions146(m): 7:41am On Jan 05, 2016
JUO:
bros please read the post again. I didn't in anywhere say any cc on 24v can produce 3200w. Anyways the one I have can accept 3.2kw solar panels but can only max out 1040w. I could remember Richmond has extensively explained clip off in this forum

Boss,

I think you misunderstood me,

The guy said he needed 1pc CC of 160A rating because he has 32000w PV for a 24v System setup.

You suggested 3 by 40A CC ( reason being his system voltage rating as limitation)

He said he does not want to use more than 1pc CC on his setup for his own reason.

my statement was actually to him
which implies he should go with your option.

cheers
Re: Solar Energy, A Complement To FTA by Konnektions146(m): 7:45am On Jan 05, 2016
chris81964:

You can use as many controllers as you want. Make sure you make adjustments to the settings for your equalize cycle. Also most brands will allow you to parallel multiple controllers.

Thanks Boss

What i actually meant was that NO single CC to the best of my knowledge can do 3200W PV for a 24V system.

See bolded below

Liveair:

Hi JUO,
I desist from using several units of Charge Controllers together on same batt bank to avoid Cut-Out interactions.
When one Controller sees voltage from another (instead of batt voltage) as High Enough Voltage and then cuts charging.
This is similar to what you get connecting a batt charger to Solar setup.
Re: Solar Energy, A Complement To FTA by earthrealm(m): 4:31pm On Jan 05, 2016
[quote author=Saipro post=41436938]

Well, it would be unfair to state that the functioning of the firmware of the EP Solar iTracer is not an exact science but thus it appears at times. It simply emphasises the fact that the SOC is a poor measure of true state of charge. I had to buy a reliable hydrometer to put my mind at ease. Having said that, the observations you've stated are weird. Unless you're consuming more than you produce in the early hours of the day (my electric kettle is fired up at the crack of dawn and sometime between 8am and 10amm the fridge then freezer start up in that order), your SOC should be rising not falling, regardless of the what's going on. It might be a fault in the CC but before we jump to that conclusion, try the folowing in this order (assuming you use FLA batteries):

1. You won't believe the sun changes its path significantly during the course of the year, even the tropics. Be sure your panels aren't deep in shadows in the morning. I noticed the iTracer somehow "feeds back" the solar panels during the dark hours up till early dawn. Results of extensive isolation tests and data collection.
2. Early in the morning, not the SOC then disconnect all loads from the CC (inverter inclusive). Monitor SOC every 30 minutes till noon. It should keep rising, gradually at first but more rapidly as the morning wears on. If it doesn't and it's not from [1] above, your device might have an issue.
3. Whip out your trusty hydrometer. Test a battery you're sure is okay and representative of the bank take SG readings every hour from 8am till 2pm. No load. IT MUST CONTINUALLY RISE TILL ABSORB VOLTAGE IS REACHED AFTER WHICH RISE THEREAFTER MIGHT OR MIGHT NOT BE NOTICEABLE, DEPENDING ON THE HEALTH OF YOUR BATTERIES.
4. If [3] above doesn't help, proceed to check SG in all your batteries. While an unlikely source, a single dead cell has been known to cause haywire readings. Multiple cells may decide to abruptly go bad.
5. Measure VoC incoming then after closing the circuit. See if it correlates (+/- 5%) with the display of the iTracer. Notice the Vmp on display and confirm likewise with your meter.
6. Seek a "professional" who would look over your system to give analysis and possibly diagnosis.

Kindly give feedback. I at this point implore otherwise who've had more experience with iTracers to come out and render some counsel.

Afterthought: I remember an issue I had with a friend's setup once. It's possible you're somehow reaching float by 10am and voltage falls thereafter. In addition, if you're simultaneously charging from another source (say the inverter or a second CC), you might have that problem too. The display merely shows what the iTracer thinks. 12.6V is okay as float and will show 100% but the same voltage might register 70% or less SOC during bulk (for a 12V system).

Another instance I've seen that issue is with and absorb duration set pretty low (say 90 minutes? 60 minutes? Lesser?). What's your set absorb duration? What's your voltage for rebulk?



thanks for the extensive explanation,
1. i jst hv a single cc, no multiple charging source[s]
2. the batts are ]sealed] thus cant check cc
3. the panels are never in shadow...full sunlight alll the time

the major culprit could be a failing battery, 1 batt reads 12.5v, the other usually reads 10.5v when its running down/under load....luminous batt...i complained earlier b4....it sxeems luminous inverters usually kill the negative batt..as this is my 2nd experience with a failing -ve batt on luminous set up...will wait until i have good batts b4 carrying out the other suggestions you stated.

note: i have a batt desulphator hooked up to the bank..for about 1 wk now......didnt take note if the issue was b4 or after the desulphator was hooked up........intend to remove the deslulphator and observe for changes.....
Re: Solar Energy, A Complement To FTA by omotech: 4:45pm On Jan 05, 2016
Konnektions146:

Yes , 220V,
Prices- N600-800
can l have your number then?
Re: Solar Energy, A Complement To FTA by omotech: 4:45pm On Jan 05, 2016
Konnektions146:

Yes , 220V,
Prices- N600-800
can l have your number then?
Re: Solar Energy, A Complement To FTA by monknaija: 8:31pm On Jan 05, 2016
c0ogumo:


Since you have an MPPT CC, you should arrange your panels in a 3 x 4 configuration
i.e 3 panels in series and 4 panels in parallel.
If the distance from you panels to your charge controller is far, then you may consider a 4 x 3 configuration.
Let us know the outcome this setup.


thanks for the help. in short the 3 panels in series will give 72 v, I understand that, but the remaining 9 panels do I parallel them all. pls bear I am no engineer guru, can explain a bit on (3×4 configuration). thanks.
Re: Solar Energy, A Complement To FTA by bobojoshua(m): 9:14pm On Jan 05, 2016
Saipro:


Thanks for asking rather than assuming.

No, when home, I power them on between 9am and 10am. They are powered down between 3pm and 5pm (mostly around 3pm for the freezer and around 4pm for the fridge). Earlier in the year, they could be powered an hour longer as my panels didn't get shadowed till 5pm. On bad weather days, they could be on for as little as 2 hours.

During continuing days of bad weather, they're powered on alternate days.

When away, they're powered by timer switches.



Very valid question. I deliberately kept it short.
1. They're generic batteries hence "unbranded".
2. I got them off a friend who got them off the black market.
3. They appear to no longer be in the Nigerian market and the cost of importing them prove prohibitive.
4. They came in 12V 480Wh units but pack a punch! You wouldn't believe the stuff these batteries are capable of. I often doubt their power capacity (I suspect they're higher than rated; much higher).
5. I had to string quite a number together in series-parallel combinations because of their lower capacities. Multiple strings are a strongly discouraged practice in RE and should not be emulated. I was hedged into a corner hence had no choice.

On the plus:
1. Though expensive, they're long lasting and ultimately more convenient than lead acid batteries. I'm speaking of design life.
2. They typically have longer cycle life too (they had better do, not at that price)
3. They are incredibly lightweight. You will doubt their capability when lifting them
4. No mess, no spills
5. If you bottom-balance (as I had), you might not have to worry about "equalling" their charge state
6. Did I mention they're odourless too?
7. Smaller space requirements and no need for extensive aeration like their lead brothers. They're just as sensitive to temperature though.
8. Working with partial state of charge? 50% of the time, mine were never fully charged. Indeed, they like being not fully charged. No noticeable degradation in performance with partial SoC.
9. By the way, they can sit on the shelf forever with low self-discharge rates. This is different from design life and cycle life. Good riddance to hard sulphation!
10. ....... and the list goes on.

Honestly, if not for their price, lead-acid batteries would be redundant by now. Well, lead-acid wins when it comes to heavy current draw applications. LiFePO4 (like AGM and VRLA) however are intolerant of long spells of overcharging. Another win for FLA. And FLA are cheap (probably the most important point, if you don't abuse them; no battery is built for abuse). If you must abuse them, FLA is the sole consideration. Mightiest win. But it will cost you gallons of distilled water.

I have a new interest though.
I'm currently following Tesla technology and I have my eye on it. Been following it awhile and will continue to.
Re: Solar Energy, A Complement To FTA by bobojoshua(m): 10:34pm On Jan 05, 2016
Saipro:


Frankly, any reputable deep cycle battery which matches your budget. I use flooded lead acid batteries and favour Trojan (extensive research and availability). And the cost per kWh is perhaps the cheapest on the market (you have to consider cycle life). Hoppecke would do but seem a bit more expensive per kWh. Rolls Surrette would do fine but I've seen just one set in the country. I think it's more popular in the USA.

For the "cheaper" AGM and VRLA batteries (they're not cheaper by the time you factor in cycle life), I think Exide and Zenith rule. Luminous seems quite popular and I've seen them work fine when used right. Sadly, occassionally a battery randomly fails and Luminous seems more prone to this.

I've seen two Chinese brands work wonders over the past 2 years (most I've seen fail within 18 months) and I'm still watching them. Will give feedback when they clock 3 years.
Ask GeorgeD1 about Zenith batteries. His testimony is inspiring.

For Trojans, ask any major dealer here. Be sure to go for the 6V RE series. Those ones are engineered specifically for renewable energy cycling and use. Difference in cost is marginal. Trojan makes other long-lasting deep cycle batteries and their testimony is similar to what you might get with the RE series (but slightly shorter cycle life). If you've got deep pockets, give the Idustrial series a tryout. That's one set of batteries engineered to withstand abuse (so long as you neither overcharge nor undercharge them). They also seem to live forever. I use Trojan batteries.
For the Exide (an Indian brand), and other good Chinese brands, find a reputable dealer on this forum too. I've seen too many imitations and repackaged ones to emphasize the point.
Avoid untested brands unless your gut goes with it. Blame no one for the results, when you do.

I hope I haven't confused you with the options. Making an informed choice is the way to go as individual needs vary.



Bros, you're not alone o! Who no like good thing? cheesy
Re: Solar Energy, A Complement To FTA by Konnektions146(m): 5:40am On Jan 06, 2016
omotech:
can l have your number then?

check my signature below
Re: Solar Energy, A Complement To FTA by c0ogumo(m): 4:43pm On Jan 06, 2016
monknaija:



thanks for the help. in short the 3 panels in series will give 72 v, I understand that, but the remaining 9 panels do I parallel them all. pls bear I am no engineer guru, can explain a bit on (3×4 configuration). thanks.

@monknaija

3 x 4 Configuration

1st step, you need to connect 3 panels in in series i.e connect the +ve of the first panel to the -ve of the second panel and then connect the +ive of the second panel to the -ve of the third panel.
2nd step, repeat the first step for panel 4, 5 and 6.
3rd step, repeat the first step for panel 7,8 and 9.
4th step, repeat the first step for panel 10, 11 and 14.
Now you have 4 strings connected in series.
5th step, connect all the -ve in each sting together and then connect all the +ve in each string together. You now have just 2 cables one +ve cable and one -ve cable going into the PV terminals of your MPPT charge controller.

Please see the attached diagram and let me know if you have questions.

1 Like

Re: Solar Energy, A Complement To FTA by monknaija: 7:05pm On Jan 06, 2016
c0ogumo:


@monknaija

3 x 4 Configuration

1st step, you need to connect 3 panels in in series i.e connect the +ve of the first panel to the -ve of the second panel and then connect the +ive of the second panel to the -ve of the third panel.
2nd step, repeat the first step for panel 4, 5 and 6.
3rd step, repeat the first step for panel 7,8 and 9.
4th step, repeat the first step for panel 10, 11 and 14.
Now you have 4 strings connected in series.
5th step, connect all the -ve in each sting together and then connect all the +ve in each string together. You now have just 2 cables one +ve cable and one -ve cable going into the PV terminals of your MPPT charge controller.

Please see the attached diagram and let me know if you have questions.

thanks a lot , you are a life saver. I get the gist now. will keep you updated when through. you be the man...
Re: Solar Energy, A Complement To FTA by bodejohn(m): 8:19pm On Jan 06, 2016
monknaija:


thanks a lot , you are a life saver. I get the gist now. will keep you updated when through. you be the man...

If you are not familiar with simple electrical connections, I will suggest you seek the help of a professional.

You stand the risk of damaging your equipments and DC voltages can also be very dangerous...

1 Like

Re: Solar Energy, A Complement To FTA by omotech: 7:38am On Jan 07, 2016
Konnektions146:

check my signature below
l try to call the number l saw on your profile but it's not reachable
Re: Solar Energy, A Complement To FTA by kiekie1(m): 9:19am On Jan 07, 2016
HURRY ! HURRY !! DISCOUNT SALES !!!!!!

TROJAN IND 17-6V industrial line flooded lead acid batteries (1202AH) ......@ 340k

USA TROJAN L16-RE Premium Line Flooded Lead Acid Battery 6V (410AH)20hr Rate *limited quantity*..... @ 75k

USA TROJAN J185P-AC Signature Line Flooded Lead-Acid Battery 12V (205AH) 20hr Rate .... "NOW IN STOCK"....@65k

Solarworld mono panels 255w ,260w,265w "made in Germany" etc now in stock at very discounted prices.........

YACHI SOLAR PANELS:
80w poly............. 13000
130w poly........... 19000
130w mono........ 24000
200w mono........ 35000
250w mono........ 45000
300w mono........ 62000

JOY SOLAR MODULES

POLY SOLAR PANEL:
80W N10000. 100W N13500. 120W N16000. 130W N16500. 160W N23000. 170W N25000. 180W N26000. 250W N30000. 280W N40000.

MONO SOLAR PANEL:
80W N12000. 100W N15000. 110W N15500. 120W N18000. 130W 20000.180W N28000.

Latest model A&E 10kva wall mount servo stab (AC input range 80V-270V)....... @50k

Must power star light inverters with charge current adjustable variable,LCD display,wall mount,remote port,load wattage display,flooded/gel/agm battery settings,battery equalisation and desulphation settings...
1kw 12v =50k
1.5kw 12v =60k
2kw 12v =75k
2kw 24v =75k
3kw"4kva" 24v =120k
4kw 24v/48v =140k
5kw 24v/48v =160k
6kw"7.5kva"24/48v=210k
8kw 192v. =350k
10kw 96v. =380k

Must power inverter boards ...@25k

Programmable timer switch with LCD display 220vac 16a........ @5k

New Epsolar Tracer A series available.30a 12-24v auto select. . Max pv input voltage 100v. It has excellent features like: -inbuilt LCD display,
-high efficiency energy harvest with advanced mppt algorithm
-dual core (ARM CPU+DSP) control architecture
-run data and event recording
-multi phase synchronous rectification tech realizing peak conversion efficiency 98%
-high reliabilty including reverse connection, over current and load short protection etc
-diversified load control mode
-monitor software supplement and firmware update
-extensive communication capabilities (RS232, RS485 with modbus protocol, CAN bus extendable)....@40k


*AUTHORIZED DEALER SOLAR SHOP LTD PRODUCTS*
All our products come with 1 year Warranty

For best affordable prices,contact Smartcell Global Services,Lagos Nigeria. Simply call Sir Frankie "08135031951" for purchase,fast delivery and waybills .. Thanks !!

Re: Solar Energy, A Complement To FTA by Konnektions146(m): 12:01pm On Jan 07, 2016
omotech:
l try to call the number l saw on your profile but it's not reachable
Please give me your and I would contact you

That same no is any WhatsApp also.
Re: Solar Energy, A Complement To FTA by DUNKA(m): 1:41pm On Jan 07, 2016
kiekie1:
HURRY ! HURRY !! DISCOUNT SALES !!!!!!

TROJAN IND 17-6V industrial line flooded lead acid batteries (1202AH) ......@ 340k

USA TROJAN L16-RE Premium Line Flooded Lead Acid Battery 6V (410AH)20hr Rate *limited quantity*..... @ 75k

USA TROJAN J185P-AC Signature Line Flooded Lead-Acid Battery 12V (205AH) 20hr Rate .... "NOW IN STOCK"....@65k

Solarworld mono panels 255w ,260w,265w "made in Germany" etc now in stock at very discounted prices.........

YACHI SOLAR PANELS:
80w poly............. 13000
130w poly........... 19000
130w mono........ 24000
200w mono........ 35000
250w mono........ 45000
300w mono........ 62000

JOY SOLAR MODULES

POLY SOLAR PANEL:
80W N10000. 100W N13500. 120W N16000. 130W N16500. 160W N23000. 170W N25000. 180W N26000. 250W N30000. 280W N40000.

MONO SOLAR PANEL:
80W N12000. 100W N15000. 110W N15500. 120W N18000. 130W 20000.180W N28000.

Latest model A&E 10kva wall mount servo stab (AC input range 80V-270V)....... @50k

Must power star light inverters with charge current adjustable variable,LCD display,wall mount,remote port,load wattage display,flooded/gel/agm battery settings,battery equalisation and desulphation settings...
1kw 12v =50k
1.5kw 12v =60k
2kw 12v =75k
2kw 24v =75k
3kw"4kva" 24v =120k
4kw 24v/48v =140k
5kw 24v/48v =160k
6kw"7.5kva"24/48v=210k
8kw 192v. =350k
10kw 96v. =380k

Must power inverter boards ...@25k

Programmable timer switch with LCD display 220vac 16a........ @5k

New Epsolar Tracer A series available.30a 12-24v auto select. . Max pv input voltage 100v. It has excellent features like: -inbuilt LCD display,
-high efficiency energy harvest with advanced mppt algorithm
-dual core (ARM CPU+DSP) control architecture
-run data and event recording
-multi phase synchronous rectification tech realizing peak conversion efficiency 98%
-high reliabilty including reverse connection, over current and load short protection etc
-diversified load control mode
-monitor software supplement and firmware update
-extensive communication capabilities (RS232, RS485 with modbus protocol, CAN bus extendable)....@40k


*AUTHORIZED DEALER SOLAR SHOP LTD PRODUCTS*
All our products come with 1 year Warranty

For best affordable prices,contact Smartcell Global Services,Lagos Nigeria. Simply call Sir Frankie "08135031951" for purchase,fast delivery and waybills .. Thanks !!
Frankie has done it again cool 8 mercury tubular flooded batteries delivered to Jos in record time. Thanks will surely do more business with u in d future.
Re: Solar Energy, A Complement To FTA by Im2Busy2Bother: 6:13pm On Jan 07, 2016
Hello Gurus,

Good day all.

Please I need an advice for a good friend ( an alternative energy freak)

He has 4 solar panels with the following specs.

Rated Power= 130W

Rated Voltage= 17.5V

Rated current= 7.42A

Open Circuit Voltage= 21.7V

Short Circuit Current = 8A

Maximum System Voltage = 600V

Cell Technology= Polycrystalline



He connected these panels in series to the MPPT Charge Controller


He has a 150V 50A MPPT that he is using.


He recently acquired two more solar panels with the following specification:

Peak power ( PMP) = 250W

Open Circuit Voltage(VOC) = 36V

Max Power Current (IMP) = 8.33A

Max Power Voltage(VMP) = 30V

Max System Voltage= 1000VDC

CELL TECHNOLOGY: MONOCRYSTALLINE

Now the big question is this, which configuration is best suited for this scenario?

Series or parallel connection?

Please explain as he is currently confused.

Thanks y'all.
Re: Solar Energy, A Complement To FTA by omotech: 9:13pm On Jan 07, 2016
Konnektions146:
Please give me your and I would contact you
That same no is any WhatsApp also.
WhatsApp 08098615300
Re: Solar Energy, A Complement To FTA by chris81964(m): 9:46pm On Jan 07, 2016
Im2Busy2Bother:
Hello Gurus,

Good day all.

Please I need an advice for a good friend ( an alternative energy freak)

He has 4 solar panels with the following specs.

Rated Power= 130W

Rated Voltage= 17.5V

Rated current= 7.42A

Open Circuit Voltage= 21.7V

Short Circuit Current = 8A

Maximum System Voltage = 600V

Cell Technology= Polycrystalline



He connected these panels in series to the MPPT Charge Controller


He has a 150V 50A MPPT that he is using.


He recently acquired two more solar panels with the following specification:

Peak power ( PMP) = 250W

Open Circuit Voltage(VOC) = 36V

Max Power Current (IMP) = 8.33A

Max Power Voltage(VMP) = 30V

Max System Voltage= 1000VDC

CELL TECHNOLOGY: MONOCRYSTALLINE

Now the big question is this, which configuration is best suited for this scenario?

Series or parallel connection?

Please explain as he is currently confused.

Thanks y'all.

I would buy a second controller and call it a day. Less headache and not much in the thought process department.
Should he decide he needs the headache, the voltage of his existing panels needs to be brought close to the voltage of the newer bigger one. He will lose some of the benefits he got from buying the larger panels after going through all that headache.
My two cents.
Re: Solar Energy, A Complement To FTA by kiekie1(m): 12:56am On Jan 08, 2016
DUNKA:
Frankie has done it again cool 8 mercury tubular flooded batteries delivered to Jos in record time. Thanks will surely do more business with u in d future.

Thanks , you can rely on me anytime . Remain blessed !

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