• The rated output of the panel is determined by the voltage and current that the solar panel can produce. Now, I = 30 A, then required Power. Some questions you should ask are: • Is the installation site free from shading by nearby trees, buildings or other obstructions? How to Connect Automatic UPS / Inverter to the Home Supply System? I am only running lights at night now. . • Generally, solar panels produce electricity at either 12 or 24 volts. How much Watts Solar Panel We need for our Home Electrical appliances? Electric Bill Calculator with Examples, How to Find The Suitable Size of Cable & Wire for Electrical Wiring Installation? What can my maximum 300 watt Panels be? Connect Solar Panel in Series or Parallel? if 220 or 380 v power supply , wats the calculations
Engr. Kindly suggest me. Before we start, its recommended to read the article about proper selection & different types of solar panels and photovoltaic panel for home & commercial use as well. Considering your batteries are of C- 10 Rating, the current required is 20 Amps. But I think you didn't take in your consideration the change in the the temperature or the irradiation which will affect the output solar power.

Regards,
Mostafa
. ?

Refering to the formula:

Battery capacity = (total load * backup hours) / battery loss * system voltage
. Under the present set up if you want to employ the existing battery only,then you can connect 2 solar modules of 12V /150 Wp each in parallel to charge the battery In case if you want to have more back up you can include another similar rated battery in parallel to the existing one and connecting totally 4 solar modules of 150 Wp in parallel that will charge the total battery bank. You can… As its not good that first we store energy in the batteries and then convert it to AC during Daytime… in other words, Connect solar panel to inverter and then connect to Load. because this calculation is based on Current for Load. solar radiation, (2) estimating available rooftop area, and (3) calculating PV potential from incoming solar radiation. But we are getting only 5.2 kw generation at the mid day time in the mid month of May. For this purpose you would require 12V / 40A Hybrid solar charge controller which would run your inverter online and charge the batteries at the same time. stream The above calculations and system was only for battery charging (and then battery will supply power to the desired Load) to AC electrical appliances, which will get power through inverter and DC loads via Charge controller (via charged batteries), Scenario 2: DC Load is Connected as well as Battery Charging. Good job OP ! back up with 2 hrs autonomy. For the purposes of this guide, we are assuming that the solar energy generated by the panels will be stored in a battery or number of batteries. Sandeep, Since you have not mentioned specifically,we presume that the battery you are using is a C-10 rated battery and the inverter is 12V / 1kVA inverter [ 800 Watts ]. In practice it’s not a great way to calculate the output from a solar panel so we work to a few simple rules. So from calculation 1. Thanks for the article. please tell me how connect of solar panel in 20 kw inverter and what rating of required solar charge controller for solar charging. So first of all we would find its amperes rating. Can you please mail yr contact detail at atul161987@gmail.com or SMS on 9885018240. Do i need MPPT controller for my 800 va solar hybrid inverter, if not for how much va systems it is used ?

i have old T 12 tube lights of 40 w(electro magnetic choke and starter) in my home ,when checking the load of them they shows different (90w & 69 &73) respectively (inverter with digital display im checking each individul light).But according to information tubelight, Dear Waseem i have install 100*4=400 watts solar panel in a serial and connect with them 2 battries of 100*2=200 amp. Dear Ammar WaadAllah @
Did you compare your data with above calculation???? Now the required charging current for the battery would be: Now the required No of Solar Panels we need for the above system as below. Hope you will clarify them too. I tried to use this calculator for sizing solar panels in hybrid system for micro GSM BTS, but size of invertor is too big for total load of 500 W. For total load of 500 W with operational time 24 h per day, calculator gives size of invertor about 555 KW. The global formula to estimate the electricity generated in output of a photovoltaic system is : E = A * r * H * PR E = Energy (kWh) A = Total solar panel Area (m2) Power in watts is additive in any configuration of resistive circuit: P Total= P1 + P2 + P3. Dear Nidhesh Sivan
Then what is the purpose of the above calculation…
try to calculate like this…come on man..its too easy.. Hi there, thnx for the useful information

I have installed 2 solar panels, 150 watt each long with 2 batteries 12 V 140 AH.

My load is 2 ceiling fans and 2 energy savers,

I want my batteries to be fully charged by SOLAR in 11 hrs of time (from 7am to 6Pm)

Why my batteries are not being charged fully in a day?

Thanks in advance, Read these two posts…and you will be able to get the ans…
(1)
Easy Charging Time and Charging Current Formula for Batteries. Solved Example, Series or Parallel Connection for Batteries. Be aware that this nominal ratio is given for standard test conditions (STC) : radiation=1000 W/m2, cell temperature=25 celcius degree, Wind speed=1 m/s, AM=1.5. Brands. We installed 280 watt panel ( 2 panel Each panel 140 watt ), 30 AMP charging controller, 200 ah battery and 800 watt inverter, Also we using Dc light ( 5 watt 10 light =50 watt ). Atul, As stated by you, you have 10 batteries of 150 Ah and 6 modules of 24 V / 250 Wp. Hi, Thanks for yr valuable suggestion.
Now = 12V x 60A = 720W (This is the required wattage for batteries charge only)
Now the required no of solar panel
720 / 180 =4
So you need to, Sir,

I think you are considering 6 batteries of 12V 100AH which are connected in parallel, but my UPS support 96V so i have to connect 8 batteries of 12V 100 AH in series.
According to that my charging current for these 8 batteries = 100/10 = 10A.
Wattage for batteries charge = 96V x 10A = 960W (as per my calculation with reference to your post)
Now solar panel, Absolutely right..
. As per the above calculations my connection is wrong. x��[mo�8� ����Z�(��mZ�дEt��܇\$vRc��wt��͐�-J\$-��X&����3/��/�_�.�|xK�����#If�ɇO����׷oȯק'g�a2��\?��0B�?�y�q�4y\��P�?ޟ���\}�x��|��2��NDr��U�Xr���%y{�����{|�)������,�7KI�2.�K����X�ގ�q©Θ&ǯf�'�8=!�oim�9{�qg�J-h� step 05 - consider the effect of temperature. A total of 168 solar panel unit (at 300watts solar panel unit) would be required to generate this type of output at once. Sir,
My name is Abraham Oni from Nigeria ,West Africa.
I can not but write to appreciate this great information made available to all at no cost. • Every solar panel has a rated power output. Led Bulb 25W (04-Off), {Usage 24 hours regularly} Please guide me, How can I charge 12 1000ah 2v batteries using solar panels, Sir I am very happy with your efforts . Good to Know: In Series Circuits, Current is same in each wire or section while voltage is different i.e. The wrong solar batteries can waste money and cause damage. The installation is really a great task, but have clearly explained the methodologies.Really Informative. dear sir i need some help plz guide me
sir we want to run 375W AC submersible pump with solar energy.if we want to run this pump without batteries means online system then how many solar panels( means watt) will be required… charge controller rating… 24V inverter is designed and we have 85W solar panel
( 18-20V and 3.5-3.8A)at output during testing… am waiting
, Dear Waqas Iqbal @ Here is simple Calculation…