The Alternative Energy Thread - Generators, Solar, UPS, Wind

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pantera (pantera) 2015-05-04 05:54:41 +0500 #1341

I'd recommend deep cycle lead acid batteries.

ghani007 (ghani007) 2015-05-04 06:03:26 +0500 #1342

AoA All,

from experts...

i have APC-1400va UPS with batteries at 24Volts/70Amps (105M by Millat Batteries they are actually 70Ah-c20))

my day time load is: 2 ceiling fans (Royal Fans-56") and 4 Energy Savers (18Watts each)

at night (since evening) load is: upto 4 ceiling fans and 4 Energy Savers - but at that time i will switch ON my wapda for UPS and charging my batteries, and thats not discuss able.

i recently got MPPT charge controller Tracer-3215rn - SystemVoltage: 12V/24V auto work - BatteryCurrent:30A - LoadCurrent:20A - MaxBatteryVoltage:32V - Max.Solar Input Voltage:150VDC - Max PV input:12V 390W or 24V 780W

and 4 mono panels of 100watts each having Voc:22.7V - Isc:5.66A - Vmp:18.9V - Imp:5.29A

my charge controller distance from my panels is approx 90-Feet and installed cable is 70/76 pure copper wire.

i have one option:
Connect my 2 panels in series for a 24Volts generation setup and make 2 parallel (of 24Volts each) and this way connect all my 4 panels through mppt charge controller with my ups-batteries which are already connected as a 24volts with ups.

for option two (please suggest):
Connect my all 4 panels in series and generate (12V x 4=) 48Volts setup and connect it with my mppt charge controller (as its Max.Solar Input Voltage:150VDC) and then my ups-batteries which are already connected as a 24volts with ups.
Will not this mppt controller convert this 48-Volts into 24-Volts ?? and the line losses of thin cable will be recovered??

Please also confirm me.. as per my understanding the DC-Circute Breakers must be different from AC-Circute Breakers... or both are the same and we have to just look for Amps Rating??

Any other good advice will also be acceptable..

Thanks in Advance
Ghani

pantera (pantera) 2015-05-04 06:16:58 +0500 #1343

I dont know about others but there is a reason why I recommend Canadian Solar. Subsequent our practical tests, only Canadian Solar produced the output which was optimum. Which does not mean that other panels are bogus, my point is, its output/price ratio is highest. You are right about Sharp, but my point stands that its output to price ratio is low as original Sharp retails at 140-150 rupees/watt while you may know the rates of Canadian (I mentioned above).
Other than that, Shinghai, Yingli and renasola are cheaper but their output is nowhere close to that of Canadian.
In a nutshell, it doesnt matter if its made in China or US, what matters is what quality assurance criteria has been set by the company. Most of Nike shoes are made in Indonesia now but their quality has not hindered in the recent past right? I hope you got the point.

marghuzar (marghuzar) 2015-05-04 09:13:27 +0500 #1344

AoA.... Well dear admin and Friends I have a lill bit query regarding my AgS Battery. . Last year on 1st May,2014 I bought AGS 175 Battery. I installed it with Homage 01kva matrix series UPS.It is set on below 15amp charging rate.It gave me 05 hrs backup on 02 fans during hot weather.In winter its utilization reduced only to 03 energy saver at night time and in day time I used to keep it switched off.
Now that hot weather again starts, I'm shocked to experience that its backup reduced to 1.5 hrs on 02 fans. Don't know whtats wrong with battery.Technicians did not checked it and told me that plates gone weak and need to be replaced which will cost me worth 6000 / =
I checked ist gravity thrice which always normal.
Do any friend have any idea whats gone wrong with my battery ??? Can any one suggest possible problems with solutions ???

Regards

hungama007 (hungama007) 2015-05-04 10:23:35 +0500 #1345

Chinese panels cover 10 year warranty whereas Canadian 25years. Also if you do some research Canadian panels come out tops.

You can apply the same analogue to car tyres, all made the same, material and all but quality is different. I would go for perelli instead of Eurostar, again it's a personal choice based on quality control and research.

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marghuzar (marghuzar) 2015-05-04 12:53:19 +0500 #1346

I'm writing my querry again in detail..... on 1st May, 2014 I bought New AGS 175 battery and installed it with Homage UPS, UPS charging rate is set on below 15 amp.
It gave me 5 hr backup on 02 fans and 03 energy savers During hot weather.
When winter started, its utilization reduced to 03 energy savers only and in day time I use to keep UPS switched off.
Now when hot weather again Starts, I shocked to experience that this Battery giving me 1.5 hr backup on 02 fans.
Gravity is normal as it should be,
Battery Mechanic did not check the battery but told me that plates need to be replaced Which will cost me worth 6000/=
Dont know whats wrong with my battery.
Can ny friend know or guide me how to diagnose or detect the actual problem ???
Regards

marghuzar (marghuzar) 2015-05-04 14:07:08 +0500 #1347

UPS : Homage
batter

Exide 220
Phoenix 220
Ags 200

murtaza.ajmi.3 (www.uwt.com.pk) 2015-05-04 15:41:26 +0500 #1348

marghuzar;4780287:

AoA.... Well dear admin and Friends I have a lill bit query regarding my AgS Battery. . Last year on 1st May,2014 I bought AGS 175 Battery. I installed it with Homage 01kva matrix series UPS.It is set on below 15amp charging rate.It gave me 05 hrs backup on 02 fans during hot weather.In winter its utilization reduced only to 03 energy saver at night time and in day time I used to keep it switched off.
Now that hot weather again starts, I'm shocked to experience that its backup reduced to 1.5 hrs on 02 fans. Don't know whtats wrong with battery.Technicians did not checked it and told me that plates gone weak and need to be replaced which will cost me worth 6000 / =
I checked ist gravity thrice which always normal.
Do any friend have any idea whats gone wrong with my battery ??? Can any one suggest possible problems with solutions ???

Regards

Swiched off during winters mean ups completely off at nite times and no charging? If yes thn u batteries cell must b damaged due to storing it n not letting thm charge enuf to keep up the chemical reactions inside the battery ... if your answer is no and ur ups charges the battery in off mode like our apc ups thn check the charging current of ur ups. .. mite b possible ur batteries r ok n ups is not charging it to the full capacity i.e below 15 amps .... also check the voltage of the battery in backup mode n see if the voltages decreases drastically. .. if yes thn ur batteries r screwed ...

marghuzar (marghuzar) 2015-05-04 15:55:58 +0500 #1349

I have homage ups and it charges the battery even if ups is switch off....in winter my battery always remain fully charged.... Even now after 01 hr loadshedding , my ups take 01 hr to fully charge the battery.

murtaza.ajmi.3 (www.uwt.com.pk) 2015-05-04 16:44:27 +0500 #1350

Ur batteries cell is screwed thatz y its charging it fast ... kindly check ur dc current amperes ... i think ur chargin settings are compromised ... it must be charging it with hi current ... did u manage to check the charging current of ur ups. .. do u hv a dc clamp meter ...

marghuzar (marghuzar) 2015-05-04 17:10:16 +0500 #1351

Muratza bhaae I have no volt meter, but homage has two option on its back, One is 15 and 2nd is 20 amp charging rate.i have set it on 15amp and I think its not so fast charging. Dont know what happend to my AGS battery, last october it was giving me 05 hr backup on 02 fans and energy savers.
How can I know if my battery is sulfated or its cell might gone week ?

marghuzar (marghuzar) 2015-05-04 17:17:52 +0500 #1352

murtaza.ajmi.3 (www.uwt.com.pk) 2015-05-04 17:24:38 +0500 #1353

It's too easy ... but u hv to hv a digital meter with u ... as i mentioned earlier just place the two probes of ur meter to the two terminals of ur batteries. . If u don hv one thn try to borrow frm ny fren of yours ... put ur ups on backup mode n check frm meter if ur batteries voltages are decreasing drastically. . I mean let say ur batteries voltages r 13.7volts when thy r fully charged. .. but when u r taking backup thn if ur voltages drops sharply from 13.7volts ... it shud stay in sum point ... if not thn ur battery is done n b happy with wot left with it .... i am dealing in apc ups n its charge is automatic. .. Don't no nything abut homage or ny other pak cheen dosti ups ...

marghuzar (marghuzar) 2015-05-05 00:56:14 +0500 #1354

Ok I will try digital volt meter today and then let u know about it... Af far ur point regarding APC automatic charging, Homage is also automatic, Even I July, Aug when voltage goes on 170-180 I didn't use stabilizer and it use to charge battery in 1.10 hr.

murtaza.ajmi.3 (www.uwt.com.pk) 2015-05-05 01:42:05 +0500 #1355

Ya u do that ... the negative part of homage is that its a sine wave ups which produces humming sound from fans and expensive things can't be used with it cux it shortens the life cycle of your tv or any other electronic appliances. .. while apc is a pure sine wave American technology ups .... u cannot compare a chinese ups with apc ...

marghuzar (marghuzar) 2015-05-05 01:54:32 +0500 #1356

Ya V should not compare china vs amreeka but regarding fan noise, I didn't notice any yet,

murtaza.ajmi.3 (www.uwt.com.pk) 2015-05-05 03:08:12 +0500 #1357

its not noise bhai .. its the humming sound ....... when ever light goes u ll hear humming sound from fans ..... neways do u battery check today ... Inshallah u ll find ur battery ok ...... also check ur charging current from ups ...... forget the peechay wala buton ....... so it urself .... a dc clamp meter ll do that .... this meter ll also help u to check ur battery voltages ......

pantera (pantera) 2015-05-05 07:01:09 +0500 #1358

I completely agree with you..
Because if you really calculate the difference, buying 3KW panels, the price difference would merely be 70-80K maximum but there will be a huge quality difference. Purpose of providing solar is to give our clients a peaceful service for at least 30 years, if your panels or inverter requires maintenance every 6 months then in my opinion there is no point in going for solar.

marghuzar (marghuzar) 2015-05-05 08:21:58 +0500 #1359

Kindly guide me in detail....

1 : What should be battery per cell voltage + Over all battery voltage

2 : if plates are lill bit sulfated which i'm sure then how can v desulfate these plates ???

3 : wbat should be battery voltage in full charged mood ?

murtaza.ajmi.3 (www.uwt.com.pk) 2015-05-05 08:38:44 +0500 #1360

1 : 2.05 volts per cell + 12.11 volts over all.

2 : use a de-sulphater. It ll clear ur battery sulphication. U ll get it from the market .......

3: 13.80 volts when full charged .

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