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

[msalimsabir]

@ghani007

dear can u post the pic of this dc fan, for how much did you purchased it and any issues? i am working on load management and need this info. thanks.

[msalimsabir]

Thanks wiki

i understand the first part of your reply...
just typing here in a little more clarifications (defiantly this will help the other readers, as i learned many many thing from PW)

""" U can add up to 4 panels (22.7v(100w)5.66Amp) in series for 12 volt battery system
and for 24v battery system u can add up to 6 panels (22.7v(100w)5.66Amp) """

12 volts battery system = 22.7voc of panels x 4-Qty of Panels in series = 90.8 volts max (that is under the 150VDC of my charge controller and also approx around the limit of 12V-390W because 4-Panels means 400Watts.

24 volts battery system = 22.7voc of panels x 6-Qty of Panels in series = 136.2 volts max (that is under the 150VDC of my charge controller and also approx around the limit of 24V-780W because 6-Panels means 600Watts.

and the second part of your reply is not clear to me...
""" the DC output current U will get with 12 volt battery system is approx 10Amp to 12Amp
and with 24 volt battery system it will be approx 5Amp to 6.5Amp """

as per my knowledge when i am going to connect all in a series...
22.7voc of panels x 4-Qty of Panels in series = 90.8 volts max
but Amps will be same as of my single panel i.e. 5.66Amp
now how to calculate the Amps for a 12Volts system and a 24Volts system??
*
*
i have an other scenario too (already installed and working with me, hereunder are the results of that, it may help someone new interested in a total 12-Volts DC system)
==
1 Dry Battery 12Volts 150Ah (Narada-Dry battery just installed few weeks ago, since previous year it was working with my Old Wet-Batteries of UPS "2 batteries of AGS-GR85 connected as parallel"")

2 mono panels of 100watts each (Output Peak Power: 100Watts - Open Circute Voltage: Voc:22.7V - Short Circute Current: Isc:5.66A - No. of Cells : 36 - Power Tolerance: 0/+3% - Max. Power Voltage: Vmp:18.9V - Max. Power Current: Imp:5.29A - All data standard Test Condition (STC): - AM= 1.5 - E=1000W/m2 - Tc=25C )

30Amp PWM Charge controller with LCD display (it may also work with a 20Amps controller but i prefer this controller cause it is with a LCD display to check my 12volts consumption and production as well as the volts of battery and other good features too, this charge controller helps me to check on daily-basis... if my consumption increased and battery looks going down, i may charge it with external 12-volts charger or control my next day consumption so the battery may full again)

Cable from Panels to Charge controller is 6-mm Mash Cable (pure copper) around 75 feets

Load... i use mostly on this system :
1 DC ceiling fan 12volts - 25-Watts (as per manual of it) but mostly it consumed around 1.8-2.0Amps per hour (displayed on my charge controller) the air flow of this DC-Fan at full speed is about 60-65% compared to my old Royal-Fan-AC.
2 lights 12volts - 10-Watts each - LED/SMD type and each light consumes around 1Amp per hour and light is almost equal to 18watts energy saver.

the bottom line of my 12volts DC system is 2 panels of 100Watts each (total 200watts) with a 12volt battery of 150ah with 6-mm cable of 75-feets and a charge controller of 30Amps with LCD display...

in a day my 200Watts panels generate around 40-45Amps

is it ok or not experts may confirm it...

but when we looks at WAPDA...
This 1 Room DC-Setup is going well... i also observes Battery life/works more in this DC setup even i used old batteries with it.

Thanks for reading this longggggg reply.

what cost incurred on this solar set-up and how much back-up for the one dc fan and 2 leds, it provides in day time and night time.

[msalimsabir]

Faizan kindly visit my facebook page for prices ...
www.facebook.com/uniworldtechnologies
1500 va 17,500
In case ov liquid batteries u should go for AGS 165 AH
in dry cell batteries go for NARADA BRAND GEL BATTERIES 100 ah

All prices are mentioned9 in my facebook page ...
dont forget to LIKE my page whether u like the prices or not. ...

ajmi sb., what charging current this ups will take for the 2 100ah dry narada batt and how much time will it take to fully charge them and what back-up will be provided (total watts)?
plus did this ups has some DOD setting for batt protection?
you can also detail me at 'salimsabir1971@gmail.com'

JAZAKALLAH

[big_show]

Asalam o alaikum Fellow members

My electricity load is 4 celing fans, 2x24w savers & 1x85w saver. Recently i bought 1500va APC Ups & 100ahx2 Narada Gel Batteries from @murtaza.ajmi.3. I have visited the market before making the purchase from Murtaza bhai. I asked him many questions as well the myths in ups business. And he answered them very patiently, and gave me the best prices and after sales service. He came to my home, Installed the system, and calibrated the batteries himself. A very friendly & genuine guy. Dealing with him was a pleasure, and now iam planning to buy another 1500va Apc ups for my parents from him again.

As far as APC ups is concerned, its pure sine wave and we there is no humming sound from fans & no voltage fluctuations in output as it has built in stabilizer and gives 220v. Batteries are solid as well and while running full load at night, only a single point drops in an hour.

Verdict: If someone is planning to buy a ups, i recommend him. A very friendly & experienced guy in the ups field.

My setup

Sent from Sony Xperia Z2 Via Tapatalk!

[murtaza.ajmi.3]

ajmi sb., what charging current this ups will take for the 2 100ah dry narada batt and how much time will it take to fully charge them and what back-up will be provided (total watts)?
plus did this ups has some DOD setting for batt protection?
you can also detail me at 'salimsabir1971@gmail.com'

JAZAKALLAH

10 to 12 amperes

4 consecutive hours

ups makes 98 watts ..... but load should be 75% of the total watts ....... 25% is used by ups itself for heat dissipation ..... if ur load is 700 watts then with this dry cell battery you backup time ll be 2 - 3 hours ....... this is called full load on ups but i am pretty sure that ur load will be less than this ....... cuz apc power factor is very good .........

ups has its own mechanism .. it never deep discharge the batteries ........ lets say one battery is 12 volts .. when its fully charged its volts are now 13.8 volts but in case of discharge APC will never let it go below 11 volts ...... it will shut down itself .... if u decreases some load then turn it on and will again start giving u backup ..... so battery discharges with the amount of load its bearing .... less the load more ll be the back up ........

[murtaza.ajmi.3]

Asalam o alaikum Fellow members

My electricity load is 4 celing fans, 2x24w savers & 1x85w saver. Recently i bought 1500va APC Ups & 100ahx2 Narada Gel Batteries from @murtaza.ajmi.3. I have visited the market before making the purchase from Murtaza bhai. I asked him many questions as well the myths in ups business. And he answered them very patiently, and gave me the best prices and after sales service. He came to my home, Installed the system, and calibrated the batteries himself. A very friendly & genuine guy. Dealing with him was a pleasure, and now iam planning to buy another 1500va Apc ups for my parents from him again.

As far as APC ups is concerned, its pure sine wave and we there is no humming sound from fans & no voltage fluctuations in output as it has built in stabilizer and gives 220v. Batteries are solid as well and while running full load at night, only a single point drops in an hour.

Verdict: If someone is planning to buy a ups, i recommend him. A very friendly & experienced guy in the ups field.

My setup

Sent from Sony Xperia Z2 Via Tapatalk!

thanx @big_show for the vote of confidence ....... its my foremost duty to answer all the queries that people have in their minds whether they come to my office or askin in any forum ....... i really appreciate for your favor that u spared some time and let others no abut me and my services .....

[wiki09]

Ghani I am not an expert but I had almost the same setup as yours for one years. The difference was I made two systems.

1. One 12v 200amp battery connected to the ups (1500va) for all the house fans and lights (AC).
2. The second system was 24v 100amp (remade batteries) for the lights of my room and outdoor lights of the house. Outdoor lights and my room lights operates on DC 24v.
   Now in morning i connected my tracer 40 amp charge controller to 24v battery system and it gave 4 to 6amp current on peak sun light. When the 24v battery were charged then I connected it to the 12v battery system and it gave 10 to 12.5amp at peak sun light.

Now your solar panels gives you 90.9(oc) volts and 5.66amps(co). When the load is connected volts as well amps will drop lets assume it will be 70v and 4amps. Ur battery system is 12 volts. 70-12= 58volts, these 58 volts will be converted to amps and the battery will receive 12v and 10 to 12amps approx and similarly with 24volt system the amps will be half of what U get at 12 volts that will be 5 to 6amp approx (This is the working of the MPPT charge controller)

Here I would like to add that my room lights are totally remote controlled with dimming function and fan speed indicator digit 1 to 9 and a few more features (sleep mode, all OFF, all, ON, all high, all low, auto turn off, theft mode) (total four lights 20v and 500mAh each)
total four out door lights. Two of them are PIR controlled, (Turns ON when movement is detected and turns off after 3 min)

[jeepaholic]

How about volta deep cycle battery for ups?

[ghani007]

i believe strongly on...
Cost may depends on the Market and time of purchase.. but any way...

In March-2014, i installed this DC setup...

100 Watts Panel was for Rs.8500/- (2 x 8500=17000/-) but recently someone told me 240-250watts panel is for Rs.15000/- and i think this one panel is enough for 1 fan & lights system (Actully one room setup for 20-24 hours).

Single core Cable 6mm - Red and Black 2 coils i purchased for Rs.2500/- (for 23 meter roll) but new info is that if someone can hunt Balal-Gunj-Lahore or Badami-Bagh-Lahore, he may find a good quality n cheap imported cable from there.

Charge controller (PWM 20Amp ep without LCD was 3500/- but i purchased bigger 30Amp with LCD display for my checking and mental satisfaction for Rs.5500/- its brandless but good quality) this 30Amp can support upto 400Watts.

DC-Fan was for Rs.4500/-

DC Light was around for Rs.200/- each (but last month when i visit Hall Road, Lahore almost same Light 10Watts+12Volts was for Rs.90/-)

My Lights use 1Amp per hour but we hardly use 6-7 hours as not always both lights are on... so approximately it will be 8-10Amps per day.

My fan mostly work for 10-12 hours and thats 1.8/2Amp per hour x 12 = 20-24 Amps consumption...

if u use Fan for 24 hours it will be 48Amps maximum. but i wont suggest to run anything 24-hours continuously.
Cause defiantly every thing needs a break in 24-hour working circle... so if you are using it for 20-hours, it will be consuming max.48(40)fan + 10Lights = 50/58Amps on a 12Volts battery in a full 24-hours...

And as i am getting 40-45Amps per day from 200Watts panels and also when my panels are quite far (around 75feets) from my charge controller/battery and even my cable is only 6mm (100%copper local made)... anyone who may use a good cable around 10mm or by shorten the length of cable from 75feet, will get more Amps per day..

One thing more i will suggest about purchase of battery, always try to get the actual Battery AH double then your consumption.. i.e. if u want to use 60Amps in 24hours, get a 120AH battery... this is good for a battery life and also in case of Cloudy/Rainy day, etc. when we have a less generation from panels.

Also check the battery's actual AH-Power the models printed on a Wet-Battery is not the actual AH... e.g. AGS-GR-85 battery is not a 85amps (as normally we ppl told by shopkeepers), its actually 70AH battery.

My Battries for this DC-Setup was free... or you may say for Rs.3000/- (the scrap rate that i was offered by battery-shopkeeper) because initially i used old batteries of my UPS, those were not giving me sufficient backup through UPS..
With new batteries when my ups is running for 2hours backup, these old batteries were giving me backup of just 15 mins, so for me these were total scrap with UPS setup. but after shifting same batteries on DC-setup they works OK with me for 12-hour fan running and lights since last year.

Now with all the rates it looks like its a HUGEEE expensive setup...
but look from the other side...
WAPDA ... Load Shading ... Always tension of Load on UPS ... UPS tripping for Long shutdown ... New batteries for UPS every year ...

1 Room : DC-System
Fan is little low in air flow.. but
Light is ok..
Batteries Life is more then double or at least double..
the consumption of DC-system is quite low as compare of AC-System (my personal calculation is AC-fan consumes 4/5-times more)
instead of buying a New-UPS with battery (if solar panels are out of budget,) buy a good battery charger this time, and next year instead of new battery purchase, buy a solar panel cause your same battery will work with solar but not with UPS. and the cost of WAPDA you pay for charging a battery daily will be much more less then you have to pay in case of UPS-setup.

I m not an expert.... Please correct me anytime....

[ghani007]

@wiki
Thanks a lot for all the valuable info..

and for your things....
Just...
Waooo... Zabardast...

[ghani007]

@msalimsabir

this is not my fan but its same in look
i purchased it for Rs.4500/-
Other pics are Light n same charge controller i mentioned in my detailed post

[murtaza.ajmi.3]

How about volta deep cycle battery for ups?

Volta batteries are ok in case u r using it in shape of liquid shape .... dry cell batteries are having many issues ...... sum of my clients did once purchased it but cux of less backup they exchange it with liquid one ..... so if u want to use liquid batteries then AGS is good and if u want to use DRY CELL then NARADA is the best .......

[jeepaholic]

No Sir I am talking about Volta Deep cycle batteries (tubular lead acid batteries) I dont think AGS is making them here

[murtaza.ajmi.3]

No Sir I am talking about Volta Deep cycle batteries (tubular lead acid batteries) I dont think AGS is making them here

as i told u before that volta brand dry cell batteries hv got sum issues with backup times .. this is mentioned by my clients ho exchanged the dry with liquid as volta company was not willing to return their cash amount so thy adjusted with their liquid one ... so its ur option now ...

[jeepaholic]

You suggested AGS so are they making tubular lead acid batteries?

[jeepaholic]

I thought they just make regular car batteries only

[murtaza.ajmi.3]

I thought they just make regular car batteries only

Uffff ... y don u read my posts carefully. .. i said that IN CASE u eant liquid battery then AGS would be better than other brands like EXIDE OSAKA etc ....

[zaybi31]

How can we convert normal (desi) ups to solar?? Ups is 700VA

[zaybi31]

Asslam u alaikum .. How can we convert normal desi ups to solar (DIY)?? UpS is 700VA .

[marghuzar]

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 ...

Today I made an experience, normally my homage ups use to take 01 hr to charge fully my AGS 175 battery after 01 hr loadshedding on 02 fans.. After fault developed Now it takes 3-4 hrs and battery get too much hot. Today after 01 hr of charging, I switched off ups and power supply to ups then separate + terminal lead from battery and then put it again on battery.Now I switched on UPS and Wapda, UPs kept charging for 15 seconds and gave full charged caution. Now dont understand either problem is with UPS or battery.. Please need help.