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

[jeepaholic]

I didn't buy it just asked the prices, there are many shops at one place together just ask all of them for the final price and choose the lowest one. I heard the right price should be something like 13500

[muh_farooq]

From above pics, load and pv input are visible. Now my question is,
1- pv input is not at peak, can be more upon load
2- why power is drawn from utility, in 2nd pic?
Also when utility is switched off, it does not take any thing from battery, pv input increases.

[ghani007]

Still Pending . . . .

i am getting around 22-Amps-DC in a whole day from 100Watts-12Volt Mono-Solar calculated by my PWM-Charge Controller..
i.e 22Amps x 12Volts = 264-Watts generation in a whole day...

One normal AC-ceiling fan consumes almost 0.50-Amps-AC per hour i.e. 0.50Apms x 220Volts = 110-Watts per hour

by this calculation...
one 100-Watts-12Volts Panel can run one AC-ceiling fan for just 2.40 hour in a whole day & night (24-hours)...

Am i Right ??
Pls help me ... to come out of this confusedddd calculations...

May be a helpful thing for readers....

https://ef4india.wordpress.com/2011/09/08/how-much-energy-does-a-100w-rooftop-solar-panel-generate/

"""
In summary, at most locations in India, the average energy output of a 100 W solar panel is expected to be around 384 Wh/day. The output in USA will vary a great deal depending on the location. At the best locations, output can be expected to be around 413Wh/day while there are locations where output will be as low as 250 Wh/day.
"""

""""""
In a system that includes a battery to store energy, couple of points need to be mentioned:
1. Battery efficiency is about 70% (Lead-Acid Battery). Thus, solar panel output of 100 Wh will be reduced to 70Wh for driving the load.
2. It is necessary to take into account the efficiency of charge controller circuit and how closely it follows the maximum power point of solar panel. I have assumed a down-rating factor of 0.85 for electronics. However, for the simplest charge controller circuits it could be as low as 0.75.
Taking these points into account, the net energy available reduces to about 240 Wh from 384 Wh. For the application that you mention, it is necessary to convert energy units to Ampere-hours. This is achieved simply by dividing the energy output by battery voltage of 12 V. Thus, a 100 W solar panel will supply about 20 Ampere-hours on the average at most places in India.
""""""

[pantera]

Is Garmi AC nai Rukega. Wada raha

Call @ 0322 2136263

[murtaza.ajmi.3]

........................

[jeepaholic]

Crossfirex what's the feedback on tubular battery performance please?

[crossfirex]

[jeepaholic]

Well one thing has been proven that its a lucky battery No load shedding

[crossfirex]

Well one thing has been proven that its a lucky battery No load shedding

Bus upper walay ka karam hai

[beemerx]

inverex import of mks 5 kva with 60 amp mppt is bull **** in my view i hv tried three units all r pathatic hving issues on inverter dc bus capicators ....blown up after 2 months replace da board again blown up after 2 months and then just one option left put it in garbage where it belongs

[pantera]

Just a random question I'd like to put across you all. What are your views about increasing duties on Solar Panels this budget?
What factors might influence you in buying or not buying solar? When looking at a Solar energy provider, how do you assure quality of equipment and services?
I'd appreciate your honest response, Im doing this survey to get better in our line and provide even better services since its demand in hiking fast.

Regards,

Waqas Khan

[pantera]

I am really sorry for the late response, I was busy with installations. It is not a good idea to install 2 different types on panels with one system. If the wattage and volts are same then you will not have any problems but in your case, your whole system will work at 30 volts, even the mono panels.
It is hence not a good idea to go for it.

[hungama007]

Just a random question I'd like to put across you all. What are your views about increasing duties on Solar Panels this budget?
What factors might influence you in buying or not buying solar? When looking at a Solar energy provider, how do you assure quality of equipment and services?
I'd appreciate your honest response, Im doing this survey to get better in our line and provide even better services since its demand in hiking fast.

Regards,

Waqas Khan

The government already said the solar systems would be duty free imports?

Sent from my iPhone using PW Forums

[ghani007]

@pantera

What are your views about increasing duties on Solar Panels this budget?

Once again... its OUR Govt. they can do anything they like, against the public interests.
"Apnay Kharchay, Apnay Tours, Apnay Businesses... Puray honay chahiyain, "

What factors might influence you in buying or not buying solar?
Due to Loadshading i buy generator, due to its running cost... i start injecting solar.

When looking at a Solar energy provider, how do you assure quality of equipment and services?
0. A basic proposal (from seller).
1. He Listen my requirements.
2. Purpose me few different solutions, so i may select the one fit into my budget.
3. Clear me the pros. & cons. of my selected option.
Due to All these conversation and attention the person given me, defiantly i will find out (may be not all, but at least up to some level) his experience and the his TRUTH... if he is talking truth, i can do business with him.

[pantera]

Thank you for the honest response. I can't say much about the government's decisions. They have not finalized the duties yet but they sure are imposing sales tax on solar providers.
Have you installed a solar system at your place? If yes then what is the capacity?

Im glad that you look upon such things but I will give you a pointer, make sure the panels and inverter provided by the vendor is of good quality since these 2 are the main components in a system.

Thank you once again.

[pantera]

That was last year. This year again there is speculation that there might be duties but chance of that happening seems to be slim. However it is confirmed that sales tax will be imposed.

[ghani007]

@pantera

i am a DIY person.

1. Panel-Mono-100W x 6 + MPPT-CC-30Amps + APC-UPS-1400xl + Millet-Battery-105M x 2 .... Since 2013

2. Panel-Mono-100W x 2 + PWM-CC-30Amps + Narada 150Amp : DC System .... Since 2014

3. Panel-Mono-150W x 2 + PWM-CC-30Amps + Northstar 100Amp : DC System (for someone else) .... Few weeks back (2015)

i always got solar things from a same vendor of hall road, and for Batteries & UPS stuff i have other sources (may be not always cheap, but very reliable).

[pantera]

@pantera

i am a DIY person.

1. Panel-Mono-100W x 6 + MPPT-CC-30Amps + APC-UPS-1400xl + Millet-Battery-105M x 2 .... Since 2013

2. Panel-Mono-100W x 2 + PWM-CC-30Amps + Narada 150Amp : DC System .... Since 2014

3. Panel-Mono-150W x 2 + PWM-CC-30Amps + Northstar 100Amp : DC System (for someone else) .... Few weeks back (2015)

i always got solar things from a same vendor of hall road, and for Batteries & UPS stuff i have other sources (may be not always cheap, but very reliable).

Very well. If you move on to Hybrid Systems and need Heavy duty batteries such as Trojan, don't hesitate to contact me.
As you may know by now, we provide hybrid systems to commercial and domestic sector and are always open to guide and help everyone who is working in the same line or seeking a system.

[msalimsabir]

@pantera

i am a DIY person.

1. Panel-Mono-100W x 6 + MPPT-CC-30Amps + APC-UPS-1400xl + Millet-Battery-105M x 2 .... Since 2013

2. Panel-Mono-100W x 2 + PWM-CC-30Amps + Narada 150Amp : DC System .... Since 2014

3. Panel-Mono-150W x 2 + PWM-CC-30Amps + Northstar 100Amp : DC System (for someone else) .... Few weeks back (2015)

i always got solar things from a same vendor of hall road, and for Batteries & UPS stuff i have other sources (may be not always cheap, but very reliable).

bro any idea for the savings you usually get - specially from the first set-up (2013)

[pantera]

I can state a simple calculation which might help you understand. This system will only help charge the batteries from Solar during the day. During the day wapda will be used which is not actually a proper solar power system. Hence, this system will only assist in charging batteries.
However if you install MPPT 3KVA AXPERT in place of charge controller and APC UPS then your bill will significantly reduce. During the day, 600 Watts load will run completely on solar and the system will also charge batteries for the load shedding