₦airaland Forum

earthrealm:
anybody has bls / batt saver for sale here in naija?

Yes,

Visit us at
www.solardepotng.com

More pics if the 6KW Xantex system
With 12 x 275W Solar panels
12 x 250W Renogy Panels


The Solar Depot Nigeria
www.solardepot.com

Well, all I can tell you is that the panels are capable of charging the battery bank to full at 50% DoD.

Solar panels
12 x 275W solarworld panels = 3300W
12 × 250W Renogy panels = 3000W
Total of 6300W x 5 hrs of sun per day = 31500WH/day

Battery Bank
8 x Trojan IND17-6V =48V 925AH @ 20h
Total Capacity of 48 x 925Ah = 44,400WH

As you can see, even if the panels are producing 25000WH/day....still enough to charge the batteries at 50% DoD.

Inverter
Xantrex XW6048 6000W 48Vdc with 100A charging current. This inverter will charge the battery bank to full within 5 to 6 hrs provided the bank do not go below 50% DoD.

Please let me know if you have any other questions. We are here to help each other.

The Solar Depot Nigeria
www.solardepotng.com

Saipro:
Frankly, that would be impossible at the moment for I have no idea of what your loading (power draw) of the system would be and that would be fundamental to any equation I might try to bring up. My assumptions are solely based on your heavy setup being probably meant to back up some heavy equipment. It's easily and quite possible that drain would be minimal (emergency backup lighting to a facility in the event of power failure and to fill in the interval before the main backup power comes on) or you have other means (dedicated chargers) for boosting the batteries.

Don't let my pessimism discourage you as I like to over-prepare for eventualities that may never arise. I'm by nature both very cautious and a perfectionist. Not the very best of traits in the open field. Gimme an idea of the purpose of your setup and I'll give my own view (which might incidentally tally with yours)

@ Saipro
Can you please explain with calculations why you think the panels are inadequate for the battery bank.
Maybe there is a mistake in my calculations.
By the way, the panels are all mono.

Saipro:
As much as I admire your setup, upon closer inspection, there appears a fundamental flaw (pretty common in RE): your PV array is somewhatinadequate for maintaing your bank - unless you plan to sparingly draw energy from the battery bank. Even then, you'd have to take an entire day or two to charge back if you somehow draw up to 50% DoD.

A given however, is the fact that your array is capable of supplying enough charge current to keep your batteries "happy". I'm quite curious as to the application to which this setup would be attending to. You could PM me if you'd prefer to keep things discrete.

PS: Pardon my overly enthusiastic and unsolicited comments but my inferences are based on the fact that your setup looks like something meant to power equipment with either high-surge starting current or equipment with steady but high power consumption.

6300W Solar installation in Ibadan

12 x 275 Solarworld panels
12 x 250 Renogy Panels
2 x Xantrex xw mppt 60
1 x Xantrex xw6048
1 x Xantrex SCP
1 x Xantrex PDP
8 x Trojan IND17-6V

More pics to follow

The Solar Depot Nigeria
www.solardepotng.com

ogianyo:
Thanks for all the info. In Nigeria, how much will it cost to install a 4kva capacity system that van last for at least 8 hours

If you are looking to install quality system.
I would say N500k to start.

SALE!
10% Off Inverters

High Power Inverter/Charger
1000W 12V, 1500W 24V, 2000W 24V and 3000W 48V

Mustpower Inverter/Charger
3000W 48Vdc and 5000W 48Vdc

Xantrex XW6048 6000W 48Vdc Inverter/Charger

If interested, please use our contacts below.

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BBM PIN: 79395A2D
Email: info@solardepotng.com
Website: www.solardepotng.com
Your One Stop Shop For Renewable Energy

SALE!
10% Off Inverters

High Power Inverter/Charger
1000W 12V, 1500W 24V, 2000W 24V and 3000W 48V

Mustpower Inverter/Charger
3000W 48Vdc and 5000W 48Vdc

Xantrex XW6048 6000W 48Vdc Inverter/Charger

If interested, please use our contacts below.

Mobile: 0702-300-1051
Whatsapp:973-204-1296
BBM PIN: 79395A2D
Email: info@solardepotng.com
Website: www.solardepotng.com
Your One Stop Shop For Renewable Energy

SALE!
10% Off Inverters

High Power Inverter/Charger
1000W 12V, 1500W 24V, 2000W 24V and 3000W 48V

Mustpower Inverter/Charger
3000W 48Vdc and 5000W 48Vdc

Xantrex XW6048 6000W 48Vdc Inverter/Charger

If interested, please use our contacts below.

Mobile: 0702-300-1051
Whatsapp:973-204-1296
BBM PIN: 79395A2D
Email: info@solardepotng.com
Website: www.solardepotng.com
Your One Stop Shop For Renewable Energy

SALE!
10% Off Inverters

High Power Inverter/Charger
1000W 12V, 1500W 24V, 2000W 24V and 3000W 48V

Mustpower Inverter/Charger
3000W 48Vdc and 5000W 48Vdc

Xantrex XW6048 6000W 48Vdc Inverter/Charger

If interested, please use our contacts below.

Mobile: 0702-300-1051
Whatsapp:973-204-1296
BBM PIN: 79395A2D
Email: info@solardepotng.com
Website: www.solardepotng.com
Your One Stop Shop For Renewable Energy

SALE!
10% Off Inverters

High Power Inverter/Charger
1000W 12V, 1500W 24V, 2000W 24V and 3000W 48V

Mustpower Inverter/Charger
3000W 48Vdc and 5000W 48Vdc

Xantrex XW6048 6000W 48Vdc Inverter/Charger

If interested, please use our contacts below.

Mobile: 0702-300-1051
Whatsapp:973-204-1296
BBM PIN: 79395A2D
Email: info@solardepotng.com
Website: www.solardepotng.com
Your One Stop Shop For Renewable Energy

@ earthrealm

You need a lightning arrestor that can do the job like
Midnite Solar MNSPD300

I have few in stock, please reach out to me through my contacts below.

richmon74:
Please can you emphasis this enough? I get so many wonderful calculations daily and they ask me to give them cost

I said Some calculations don't really apply in real world because we make so many assumptions when calculating Solar panel size and Battery bank size.

1. Power Consumption:
The power consumption on a TV may be 250W. That does not mean that the TV would consume 250W continuous. It may reach 250W at start up and then back to 200W.
Again for 30HP pump. We calculated that 1HP is 750W x 30 = 22500W. We dont know how old this pump is ....maybe the pump would consume more or less we don't know. We need to actually measure the consumption at startup and again after about 15 mins to actually figure out the consumption of the pump.
Some people may the thinking its good to over-design the system, Yes its good for a DIY/Small project..... but for 30HP pump running 24/7 thats not a joke.

2. Battery Sizing
So many labeled 12V 200AH batteries out there are just 150 or 160AH battery. I know the secret behind all these cheap batteries. The Chinese manufacturers add glass to the battery to make it the weight of a 200AH battery. How do we account for this in our calculation?.So people please watch out when picking your batteries.

3. Solar Panel sizing
The installation of your panels is another critical thing. It has to be installed correctly to make sure there is no shade. shade could reduce the energy harvest by 50%. Its has to be at the correct angle. How do you account for a 250W panel putting out 150W in your calculation.

4. Wiring
After doing a the calculations and thinking everything is correct, if you do not use the correct wire size, you wont get the desired output.

To round it up, all the assumptions we make when sizing our system is good if we are installing a small system. For a very big installation, everything has to be right or we could be throwing millions in the drain.

I hope this answer you question richmond74.
Guys please drop your comments

@ Schneid

I am sorry to say but this is not a DIY installation.
Please consult a professional otherwise, you would be throwing money into the drain.
We do not know how you come across the load you presented...therefore, cant really say if your calculation is right.
Some calculations don't really apply in real world. You need to answer few questions before pointing you in the right direction.

Please use my contacts below.
Thanks.

schneid:
Top of the morning to you solar geniuses in the forum. Kindly view my sizing below and assist where possible.

Power requirement= 43200WH
At 97% efficiency/losses = 44536.08WH
Using 24DC system, AH required= 44536.08WH/24 = 1855.67AH

At 50% DOD = 3711.34AH
At 2days autonomy = 7422.68AH

Battery selection
Using 200AH batteries = 7422.68/200 = 37.11
approx 38pcs .
For 24 system (2 batteries in series) = 76pcs

Solar sizing
Power requirement = 43200WH
Assuming 5hrs of sunlight 43200WH/5 = 8640W
Using SW255w panels= 8640/255 = 33.8 = 34PCs

Solar arrangement
Strings = 2 x 24
Parallel = 17 of the strings.

Charge controller
Knowing that each panel is about 8.5A x 17 in parallel gives 137A. I want to use 2 nos of Outback FM80.


Pls kindly review my calculations and correct me before I do something crazy.

Thanks as I look forward to your professional responses.

I will strongly advise you to go for a 48V system. I can help you get a 48VDC to 24VDC converter for the DC load.

For the Charge controller, FM80 24V @ 80A = About 2000W for each charge controller
Thats a waste of money if you go with 24V system.
You could buy 2 x FM80 or Midnite Classic 150

Hope this helps

bodejohn:
Second Ts-Mppt-45A and Ts-M-2 successfully commissioned. See picture below.

Both CCs pumping juice into my re-arranged 36v 450Ahr battery bank.

Next upgrade will be a complete rearrangement of the components for esthetics and ease of maintainance.

Thanks to @c0ogumo for the supply of the Tristar CC.

It was a pleasure doing business with you.
I hope to do more business with you in the future.

www.solardepotng.com

raii:
My 3 5kva luminous inverter backed by 4 batteries usually powers my fridge, tv and fans dor two days when fully charged. Now it doesn't power all these items for 24hrs except the fridge is off. What could cause this.

I have had the inverter for 8months.

To be able to help, please supply the following info:

What is your inverter max charging current?
Is your system voltage 24Volt or 48Volt?
What is the capacity of your four batteries? 12V 200AH ?
How many hrs/day do you have NEPA light on average?
Do you have a solar system to charge your batteries?
What is the make and voltage for each battery?

What is the power consumption for each item mentioned above
TV, Fridge, Fan in watts?

Thanks

www.solardepotng.com

Hello Clement

May I ask you what do I get for N100K.
I believe N100K is not enough for a small setup.

Please visit our website www.solardepotng.com for affordable inverters and accessories

hardywaltz:
Hello House,
I have followed this thread for quite a while and i had commented some time ago but it was lost when Nairaland got hit last year.

I have had my Bluegate 2kva (24v) inverter since 2011 with 4 x 200Ah batteries connected in series and parallel. So theoretically i have 24 x 400 = 9600watts.

My Inverter is analogue and has a 20A charging which i have noticed is inadequate for the system coz 24v x 20A = 480watts/hr
which means it will take about 9600/480 = 20hrs (on the assumption of 0% DOD). My constrain is that i hardly have NEPA lite and I put on my Gen. from 5pm to 1am each day (8 hrs average) but I noticed that it doesn't really charge the batteries.

I just changed all my four batteries (200ah/Bluegate).


So I am looking for a good Inverter brand with higher capacity of charging 45amps or more
with digital display to show the % charging and discharge coz I intend to increase my battery bank and buy solar panels in the next few months so the Inverter should be able to support the incoming system.
Also the Inverter would be powered mostly by a 5kva Generator. (for the mean tym)

Please I will need ur help guys.
Thanks

@richmond77
@Akanniade
@GeorgeD1
and all

Ps:
Some one is offering me a Voltron inverter with the following spec
:
Main Features:
Output Power: 2Kw
Soft start capability for starting heavy loads
New power factor corrected (PFC) charging
Durable construction for long life under extreme environmental conditions
70 amp automatic three-stage battery charger (bulk, absorption, and float)
battery equalization with remote temperature sensor for increased performance
Low idle current (less than 1 watt) conserves energy when no loads are present
Built-in starting control circuits for two- and three-wire generator starting systems*
New digital display shows kilowatts (kW) when inverting and amps (A) when charging
Better thermal performance allows full output power to 50°C (122°F) without de-rating
High surge capacity starts more difficult loads and handles overload conditions reliably
Simplified controls with a snap-on cover that protects settings from being accidentally changed
Durable construction for long life under extreme environmental conditions

Please checkout my website for affordable inverters and accessories and let me know if you have questions.
www.solardepotng.com

Sexynick:
Pls i need help: how much wilL it cost me to charge one 200Ah or 150Ah battery with solar panel. And secondly how many watt does and external battery chager use when chagring a battery?thanks

You need between 200W to 300W panel to charge a 200AH battery. It depends on your usage.
Cost ?....between N50K to N80K for the panel....charge controller not included.

External battery charger power consumption will depend on the rating of the charger.
Example: A 30A, 24V battery charger would be 30A x 24V =720W + Conversion loss say total of about 800W

Hope this helps

schneid:
Please advice before i do something wrong!

48VDC/800AH battery and load of 3000W(extimated) running on inverter.(24hours on weekends and about 12hours on weekdays)


Below is my own configuration:
24pcs of 255W solarworld panel and 2pcs of 80A outback CC.


I intend to install as follows:
12 panels(3-strings and 4 parallel) per 80A outback CC giving me 3060W from my panels at 100%- set A (this should give me about 63A @48v)
12 panels(3-strings and 4 parallel) per 80A outback CC giving me 3060W from my panels at 100%- set B (this should give me about 63A @48v)
Connect both sets A nd B from the Charge Controller through separate breakers to the 800AH/48VDC battery system.

Since my batteries total AH is 800AH, it means i would want to charge at 10%+ rated (i.e 80A charging current) which am sure to get from my 2 charge controllers PLUS extra current for my load during day time.

QUESTIONS (Put into consideration the batteries are fixed, other components can be adjusted)
AM I on the right path?
Is using the 2 charge controllers justifiable?
Are the nos of panels OK for this system?
What is the minimum and maximum configuration i can use in this situation?
Considering cost, if i am to use just one CC, how many panels would you recommend?
If am to totally go off grid, what config would be the best?


Thanks as i await your professional response.

To add to what Barezzi said

3000W for 24hrs = 72,000WH
72,000 / System voltage (48Vdc) = 1500AH (with Inverter loss 1600AH)
At 50% DoD, then you need 3200AH battery bank (Your current battery bank x 4)

You should be fine with 1600AH battery bank if running for just 12hrs

XerXesNG:
Is this thread still active?
Anyone up for some LCL? Partner up to get a full container?

What are you looking to ship?

Whatsapp: 973-204-1296
BBM PIN: 79395A2D
Email: info@solardepotng.com
Website: www.solardepotng.com

LUKINGUY:
Thank You for your response.

Am a novice with no clue. I will prefer every of its features to be Automatic.
Am looking at maximum of 10 30watt Bulbs, 1 Flat Screens Tv, 5 in 1 Home theater and 3 fans
I will want it to run between 6 to 8hrs
The charging source will be from PHCN, 2.5kva generator, or you can advise solar.

Thanks

Did you get the answer you are looking for?
Please let me know. I can help

Whatsapp: 973-204-1296
BBM PIN: 79395A2D
Email: info@solardepotng.com
Website: www.solardepotng.com

samnaija:
guys salam 12, barezzi, juo thanks for all your inputs it as made me take more attention to my system . i have finally detected the fault , my batteries were not being charged adequately because of a faulty charge controller. the wellsee cc brings a very low voltage dragging down the battery volts. house is the away to protect charge controllers from being damaged, because my second battery bank cc was also fried and this makes the second time around. any good recomendations on cc and price would be appreciated. to the house generally very helpful forum...

Please contact me with your system voltage and location.

Whatsapp: 973-204-1296
BBM PIN: 79395A2D
Email: info@solardepotng.com
Website: www.solardepotng.com

I agree with you baba11.
Some people are aware of Renewable Energy and some are not. Some of the people that are aware do not believe that its the solution to our power situation due to the failure of our solar street lights. The failure is due to bad design and using cheap materials in order for the contractor to make more profit.
You can start your Solar Home installation for as little as N300K and add to it later as the money becomes available. This will not sustain you for 24hrs but will at last make a difference.


Whatsapp: 973-204-1296
BBM PIN: 79395A2D
Email: info@solardepotng.com
Website: www.solardepotng.com

Is SONCAP a must for shipping from china?
Is is responsible for obtaining SONCAP?
How long does it take to get SONCAP?

What else is needed for clearing in good in Negeria.

What's FM# and form: MA#?

Thanks in advance for your quick response.

johnny4u2:
John on December 20, 2014 at 5:52 am
reply

Hi,
Your replies and inputs are highly informative.
I have a 5KVA and a 3.5KVA inverter used to power different sections of my house. Each is having 8 numbers and 4 numbers 200Ahr batteries respectively. What is the minimum rating of a generator set that I need to charge these inverters separately and also together?

Whats your inverter charging current?
Whats your battery bank voltage?

molley4real@hotmail.com
BB PIN: 79DD915D
whatsapp: 973-204-1296
www.solardepotng.com

urusky247:
please can anyone recommend a good battery charger/maintainer for me so that i will be able to use it to charger standby batteries. cause i had to take one of my batteries to this automobile batteries men for charging, after charging for several hours and i carried out test on the batteries but it didn't charge well. or if you have any charging method it is also welcome. thanks

What kind of battery are you trying to charge?
Whats the voltage and capacity.

Please contact me for more info

Whatsapp:973-204-1296
BBM PIN: 79395A2D
email: molley4real@hotmail.com
www.solardepotng.com

I found this on Google. I believe this will help throw more light into the ongoing discussion.

Solar cell efficiency
From Wikipedia, the free encyclopedia
Dust often accumulates on the glass of solar panels - seen here as black dots - which reduces the amount of light available to the panel.

Solar cell efficiency is the ratio of the electrical output of a solar cell to the incident energy in the form of sunlight. The energy conversion efficiency (η) of a solar cell is the percentage of the solar energy to which the cell is exposed that is converted into electrical energy.[1] This is calculated by dividing a cell's power output (in watts) at its maximum power point (Pm) by the input light (E, in W/m2) and the surface area of the solar cell (Ac in m2).

Efficiency = Pm/EAc

By convention, solar cell efficiencies are measured under standard test conditions (STC) unless stated otherwise. STC specifies a temperature of 25 °C and an irradiance of 1000 W/m2 with an air mass 1.5 (AM1.5) spectrum. These conditions correspond to a clear day with sunlight incident upon a sun-facing 37°-tilted surface with the sun at an angle of 41.81° above the horizon.[2][3] This represents solar noon near the spring and autumn equinoxes in the continental United States with surface of the cell aimed directly at the sun. Under these test conditions a solar cell of 20% efficiency with a 100 cm2 ( (10 cm)2 ) surface area would produce 2.0 W.

The efficiency of the solar cells used in a photovoltaic system, in combination with latitude and climate, determines the annual energy output of the system. For example, a solar panel with 20% efficiency and an area of 1 m² will produce 200 W at STC, but it can produce more when the sun is high in the sky and will produce less in cloudy conditions and when the sun is low in the sky. In central Colorado, which receives annual insolation of 2200 kWh/m²,[4] such a panel can be expected to produce 440 kWh of energy per year. However, in Michigan, which receives only 1400 kWh/m²/yr,[4] annual energy yield will drop to 280 kWh for the same panel. At more northerly European latitudes, yields are significantly lower: 175 kWh annual energy yield in southern England.[5]

Several factors affect a cell's conversion efficiency value, including its reflectance efficiency, thermodynamic efficiency, charge carrier separation efficiency, and conduction efficiency values.[1] Because these parameters can be difficult to measure directly, other parameters are measured instead, including quantum efficiency, VOC ratio, and fill factor. Reflectance losses are accounted for by the quantum efficiency value, as they affect "external quantum efficiency." Recombination losses are accounted for by the quantum efficiency, VOC ratio, and fill factor values. Resistive losses are predominantly accounted for by the fill factor value, but also contribute to the quantum efficiency and VOC ratio values.

As of September 2013, the highest efficiencies have been achieved by using multiple junction cells at high solar concentrations (44.7% by the Fraunhofer ISE, Soitec, CEA-Leti and the Helmholtz-Zentrum Berlin).[6]

New from Schneider Electric Conext XW 230v 50Hz

http://solar.schneider-electric.com/product/conext-xw-230v-50hz/

jaz:
could you do me a quote which would cater the energy needs of the following items: 2 fans, a 2HP AC, A 1hp AC, 48" flat screen, fridge, 8 low energy bulbs, home theater and a laptop.

further, what wattage of solar panels would i need to charge the above inverter system

You are going to need a 5000 Watt or 6000 Watt Inverter
The size of your battery bank would determine the size of your solar array.

Ping me for more info

Whatsapp:973-204-1296
BBM PIN: 79395A2D
email: molley4real@hotmail.com