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

[usmanuetian]

I have heard that some local UPS are culprit burning the electronics like TV, and mostly the fans?

Yes. normally local lower quality UPS cause 'speed regulator' of fan out of order, and fans usually run on full speed (you cant make speed . But its solution is also there in market, a chinese dimmer (speed regulator) is said to work fine even with ups and its only 50 rupee expensive than a normal one.
dont know about TV, since most of people use UPS for tube lites/ energy savers and fans.
what do you ppl use as an emergency power back up??

[Adeels1]

Local ups is the best solution in current scenario
If load shedding continues 2 hours after every one hour then there is no problem with local ups , it can manage .
Regarding fazalwahabs statement that local ups is burning TV and fans
I personally donot see any issue. Except fan dimmer some time goes bad

Every body should use his own sense to make use if ups on only fans and lights , instead of some high cost electronics equipments.
We need to under stand that ups is only to manage some time.

[huzaifa.haroon]

I have heard that some local UPS are culprit burning the electronics like TV, and mostly the fans?

The normal ups are not fit for electronic s because they donot produce PURE Sine Wave which wapda Supplies , they are cheap and pure sine wave ups are 4 times expensive , these cheap Chinese UPS produces Modified Sine Wave or Square wave which are killer for everything

Sent from my A900 using Tapatalk

[raeed.mufti]

get these, from supplier its 11,600 to 11,800 each, from shops 12k to 16k depends on your dealing

AoA, how is the performance of the tubular. VOLTA do not seem to indicate their battery AH values. Did you happen to find out the actual AH value of this tubular battery that you are using 12 TR-150. A volta distributor told me that it is 150AH but because normal car batteries show the model and not the actual AH values, I thought maybe thats the case with tubular ones as well. for example GX200 of AGS is something around 175AH.

[raeed.mufti]

you have had this last year in summer and have seen its performance in at least one summer. kindly share your feedback for the benefit for others.

[akhurram]

i have 2 solar panels 150 each = 300 watts
1 local ups of 750 watt
1 exide battry of 200amp

my requirement is
1 seiling fan for around 12-16 hours
1 seiling fan for around 2-4 hours
3 energy savers of 24 watt each for around 6-8 hours

my question is
how much load i can put directly on solar in day time as it also need something to charge the battries aswell

[akhurram]

ok u said they are responsible to provide electricity for every home so brother are u satisfy are they giving you 24/7 electricity

[salaara579]

i need 2 panels of 150
no need of battery as i want to run in day lite only, is it possible??
and if yes, what other equipment i need in addition to panels??
any expert ??
thanks

[arsh247]

Nizam energy poor sales/customer service. I have asked for a price quote several times but they never sent. Why should I expect they will install or sell a quality product or provide a after sales service?

my cousins feedback -----thought it might help few people here

[mudassarnawaz]

AoA , respected members as I'm planning to buy a new ups for my home ; i went through almost all the threads here regarding UPS, but till not clear ; I just want you people to help me making this choice , as the season is coming , it might be helpful for many others too , thanking you all in highest anticipation ! Please share your opinion about the best ups available in ye market !

[nexton_solar]

Dear haseeb,

We offer all sort of solar PV solutions, equipment and services. For your load requirements you need 1200W system that will be sufficient to power your load. you need 400 AH of batteries (Gel type). MPPT control chargers work better than PWM based CC and it will be built-in inverter (taiwan).

[deltoid61]

I have installed 2kv system from solar city with 250 Watt x4=1000 watt panels. My max load is 500-600 watts. i used liquid lead acid Millat batteries 185x2 @ 24 volts. The inverter is hybrid with PWM charge controller upto 40 Amps.
panels are very good quality.Providing 30.1 volts(Vmpp) @ 8.3 Amps. I have heard the advantages of MPPT charge controller but a hybrid inverter with built in MPPT is very expensive,starting Rs 160,000 and above.but a separate MPPT i can get in Rs.25000.My question is should i use a separate MPPT charge controller? Will my setup benefit from it ? If i use it how the inverter built in PWM will behave? or should i disable built in one if i can ?
I have to say the service provided by Solar city was fast and good.

[mwanwar]

I have installed 2kv system from solar city with 250 Watt x4=1000 watt panels. My max load is 500-600 watts. i used liquid lead acid Millat batteries 185x2 @ 24 volts. The inverter is hybrid with PWM charge controller upto 40 Amps.
panels are very good quality.Providing 30.1 volts(Vmpp) @ 8.3 Amps. I have heard the advantages of MPPT charge controller but a hybrid inverter with built in MPPT is very expensive,starting Rs 160,000 and above.but a separate MPPT i can get in Rs.25000.My question is should i use a separate MPPT charge controller? Will my setup benefit from it ? If i use it how the inverter built in PWM will behave? or should i disable built in one if i can ?
I have to say the service provided by Solar city was fast and good.

Bhai how much the system costed u plus what pannels u have used and please also explain what items are u running on this

Sent from my GT-I9500 using PW Forums mobile app

[deltoid61]

total cost was 188000. Included 8000 for stands,10,000 for installation charges.
Inverter 2kv(1600 watts) = 49000
Pannels 250 watt = 31000 x 4= 124000

i bought batteries my self.11000 x 2 =22000

I am running 3-4 fans,3-4 savers and a fridge ( which takes 280 watts,i have calculated from reading of my inverted when all other things were off) and a water motor of half hp takes 300 watts.
this is amazing setup as if the load exceeds the battery comes into play.when load decreases for example motor is off or fridge compressor shuts down that it recharges from solar.

i have installed canhge over switches for my moter and fridge and i run them on wapda in night becoz my battery bank is small.and i dont wanna charge my batteries on wapda,except if load shedding happens at night than the batteries are charged from wapda.
Thanks Allah for providing our family this luxury
and an advice dont go DIY on this,as there are a lot things and factors,proper configuration making parallel or series,distances,losses etc although it is tempting to save those Rs 18000 but dont do that.
otherwise your panels may be sitting on neighbor roof after a storm

Always go for pure sine wave as applications runs smoothly and no humming of fans as on UPS.and appliances use less watts on pure sine wave than modified.my fan took 150 watts on Ups and now it just consumes 90-100 watts ! so you can see how big difference the pure sine wave will do to you.

[akhurram]

i purchased
Welcome to PV Silicon Technologies
they are working fine i purchased it @ 150/watt that seems the best one at hall road lhr i dnt know abt others

[akhurram]

i need 2 panels of 150
no need of battery as i want to run in day lite only, is it possible??
and if yes, what other equipment i need in addition to panels??
any expert ??
thanks

Solar Expenditure for common use this will charge UPS battry upto 200amp with 1000 watt UPS 2 solar plates (150watt each i have canadian one that costs around 34000) 1 Charge Controller (20amp) around 2500 cable 8mm cost around 120/meter Solar Stands ( around 1500-2000) UPS (this is upto you .. 1000watt cost 12000 for local made) Battery(200amp battry cost around 16000) labour around 1000 so what this will do this will charge the battery of your UPS and you will use that so its in stream battery continously charge from solar and you will use continously ... Charge controlar also has a space if you want to plug any of your 12v device you can directly plugin that into charge controller so now about the usage as i told this will actually charge your battery and nothing else now you have to manage the load this report is for 300watt solar plates 300 watt solar plates will give you around 260watt of electricity out of 260 almost 100watt will be used for battery charging so now you have 160watt that you can use so you can manage it you can run 2-3 12 watt fans 2-3 energy savers or you can run 2 energy saver of 4 watt, 100watt led and a fan of 12 watt or You can use 2 energy saver of 24 watt each and a celing fan that will consume around 120watt so this is all up to you how u have to manage it as per your requirement

[whiteangel]

I have installed 2kv system from solar city with 250 Watt x4=1000 watt panels.

How much warranty do they give on panels. I am assuming these are locally assembled panels.

[deltoid61]

How much warranty do they give on panels. I am assuming these are locally assembled panels.

5 year warranty.Inverter is hybrid and automatic.its switches automatically to wapda when sun went down.there are many options to configure it they way you want
i am receiving Pms regarding their address and number so i want to share here
042 35146684
042 35146698
cell 0335-5146684
150 B 1-II Muhammad Ali Chowk,College Road Lahore
Solar City , Green Energy, Saving Earth,Solar home,solar inverters, Solar panels, solar in Lahore pakistan for sale at solarcity,
and my pannels provide near 32 V when sun is at top.that mean they even give more than 250Watt (watt=volts x amperes ,, 32 x 8.3 = 265 Watts per pannel x 4 =1064 watts total.is't that amazing?
usually panels give slightly less than the ratings.
Kindly others who have installed it do share the pv rating in menu of their systems.

[whiteangel]

265 watts per panel is very good Is this a locally assembled solar panel?
How much power on average are the panels producing every day?

[whiteangel]

There are a few Pure Sine Wave UPSs in the market. Locally made UPS are not even proper UPSs, they are mostly modified sine wave inverters. The modified waveform is what kills the fan dimmers and causes fans to whine.

If you plan to run inductive loads (anything with a motor) it is best to go for a pure sine wave UPS. They are more expensive than the modified sine wave UPS but the power they produce is cleaner and closer to what is supplied by the power utility. I have two Pure Sine Wave UPSs in my home. Never had to replace a fan dimmer or deal with whining fan motors.

And a thing about fan dimmers, they are of two types. 99% of fan dimmers are the resistive type (cheap China or Pakistani made dimmer), they have a resistor which resists flow of current depending on the position of the dimmer. These dimmers slow down the fan by resisting the flow of current and converting it into heat. So even if you run your fan on the slowest speeds, it will consumer the same amount of power as it consumes on full speed. The other type of dimmer, the 1%, is the type that is equipped with a TRIAC, you will usually find this in dimmers made by Schnieder, Philips and other known brands. They work by rapidly shutting the power on and off in quick succession to control the speed of the fan. They are more expensive, but they do save power if you are running the fan on slow speed.