Design of solar panel / battery bank and inverter
This MS Excel spreadsheet calculates the following:
- Total Demand Load
- Size of Solar Panel
- Select Type of Connection of Solar Panel
- Select Rating of Each Solar Panel
- Energy from Solar Panel as per Daily Sun lights
- Size Battery Bank
- Select Type of connection of Batteries in Battery Bank
- Size of Inverter
| Software: | MS Excel Spreadsheet // Calculate Size of Solar Panel, Battery Bank and Inverter |
| Version: | 22.8.2012  |
| Developer: | Jignesh Parmar |
| Size: | 59.5 Kb |
| Price: | Free |
| Download: | Right here | Get Download Updates | Get Technical articles |
Dang Hoang Anh
I need software to calculate the solar system!
Thanhks! Best regards!
Zaheer
sir; I’m unable to understand MS (Excel Spreadsheet // Calculate Size of Solar Panel, Battery Bank and Inverter) please guide me
Foluso Omolewa
This tool is of immense help Thank you for your effort. Could there be a mistake in the sizing of the inverter The calculation is given in kw thereby making the inverter very large. Can you please comment on this. Thank you.
Nirav
I have seen the excel sheet, you have prepared for design of solar panel, inverter and battery bank and it is awesome.
Here, my application is little different on solar water heater.
I want to maintain the 70 C temperature of 50 liters (approx) water using 500 W DC heater for 24×7.
I want to size the solar panel, battery bank, solar charge controller.
Please kindly support.
Anadi
Excellent initiative and great work by Jignesh Parmar.
Can I have your contact nos, as i have to discuss a project where I find the no of batteries and Panels required is very large.
herry
Hi Sir can you plz provide the calculation formulas for this excel.
herry
Hi Sir can you please provide the calculation formulas of this excel.
Parveen Kumar
i can’t download this…plz help me…
Adem Ay
i glad to you, its very useful, i will try it as soon as
Edward Gilmour
In considering a stand alone system where the battery is supplying all of the energy as the sun goes down; then consider solar PV as the recharger. It need to be addressed in the order Load + losses => Battery; then charger & PV solar; then consider days without sunlight and multiply accordingly.
The issues are further complicated by considering the battery banks maximum charge current.
Do that with lead acid and it gets truly massive!
kamel shahpo
excellent work
Cosmas Byela
Hi! I cant downlod the sheet link for calculator sixe of Solar pannel, Battery bank and Inverter.
Please help me.
Cosmas
Amit
Hi ,
Nice work still few things I would like to explain .
Consider the power factor of Not only UPS but also for batteries .example.
1000 va output will be 700 watts
700 watts/.85 = x ▶ invt eff.
X/.65= Y▶ batt. Eff.
Y/Vdc = Z ▶ vdc is no. Of batteries x volt of battery.ex 12 volt x 3 battery= 36 vdc
So Z x (Backup time needed ) say 3 hrs
So for example it comes 15
Multiply by 3 hrs
So backup is 45 Ah
HENCE , 3 BATTERIES ARE NEEDED FOR A 700 WATT LOAD ON A 3 BATTERY SYSTEM (36 VDC) for 3 hrs backup.
Mail me at : amit@elnova.com
http://www.elnova.com
,
Nice work still few things I would like to explain .
Consider the power factor of Not only UPS but also for batteries .example.
1000 va output will be 700 watts
700 watts/.85 = x ▶ invt eff.
X/.65= Y▶ batt. Eff.
Y/Vdc = Z ▶ vdc is no. Of batteries x volt of battery.ex 12 volt x 3 battery= 36 vdc
So Z x (Backup time needed ) say 3 hrs
So for example it comes 15
Multiply by 3 hrs
So backup is 45 Ah
HENCE , 3 BATTERIES ARE NEEDED FOR A 700 WATT LOAD ON A 3 BATTERY SYSTEM (36 VDC) for 3 hrs backup.
Mail me at : amit@elnova.com
http://www.elnova.com
Albert Allotey
Hi i cant download the excel sheet. link takes me to https://app.box.com/s/jgvhc07ssbap7x6udgwq and there’s nothing there. please help
mayank tanwar
To calculate the size and power backup solution Batterybhai.com provides Power Calculator.
Sergio B. Diasana
solar technology is the the best power savings at our time.
Sergio B. Diasana
It is a very good site, to enhance our expertise and ability and be more professional.
oladayo
i like this site
Steven | PSE Battery warehouse
Nice spreadsheet. This will definitely come in handy when calculating the size of your battery bank.
Tunji Iromini
Hi,
I observed that a corresponding increase in the battery backup time (autonomy) doesn’t affect the sizing of the solar arrays. In essence, a 24kW solar power (200W by 48V panels) is not affected despite increasing the number of days of backup power. The number of batteries increase but not the panels. I was expecting the solar panel side to flag an error but it remained green (ok) despite varying days of backup. Increase in batteries should automatically result into more panels to ensure batteries are adequately charged.
Can you comment on my observation please?
Regards,
Tunji
solar magics firm
Very true, there’s no way you can add the batteries to cater for the days of autonomy and you fail to add solar panels. If only you add batteries, the system will not be getting enough charges therefore it is a must for solar panels to be added to the system.
Ajay Prakash Singh
dear sir,
I am new in this field, and i want to learn how this calculator works for calculating the load. when i am using it, it ask for the password. i am having some knowlege of it but wish to know the way that how to calculate the size of solar panel, battery and inverter.
please help
abaho emma
thank you for your lessons and your calculations. i know how size now
Pranav
useful calculator…should include DC load option…
Ata Ur Rahman
dear
this tool design on AC load but i need a tool that design for DC load.
or any one can tell me that relation between DC and AC load.
how i convert 1500W DC load to AC load to use this design tool
DC….?…=AC…?…
Taif
Hello Everyone and Technical members,
I have a project of Installing Solar Power System on a Terris of a building having an area of 3000 sq ft. It is a 10 storey building having three flats/apartments on each floor with each flat/apartment has a load of 18420 watt hours or 18.42 kWh.
It’s my project so I am facing problem to calculate what types of panels I should use to produce that much voltage by panels with installing batteries..
Please help with this with the appropriate solar panel strategy or planning.
You can also email me for further details if you want for this purpose.
Thank you
Ivan Mugabi
Interested in solar calculator
Ebenezer Koranteng
I am yet to try your calculator.
Thanks!
Faruque Ahmad
Great tool!
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. I do not understand why. I guess there is mistake in cell which shows KW.
Regards,
Femnas
I think there is some mistake….
bath
This is the great site for EE in the web i have ever seen! Thanks to all the developers for sharing their great works.
prashantrider
it goes on this link https://www.box.com/s/jgvhc07ssbap7x6udgwq
the link doesnt work so cant download, ????
Edvard
You will see ‘Download’ button on top-right.
prashantrider
cant download ??
sajancq
Very useful, Thank’s
Azra
Great tool!
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. I do not understand why. I guess there is mistake in cell which shows KW.
Regards!
Azra
gsrsharma
it’s free tool but password protected !!!! … delicious food but in the showcase !!!
etradz
Fabulous work.. This surely is a time saver..
Regards
Nick
veerugvs
Really excellent job u r doing for the electrical engineers
Mostafa Sharifi
Thanks alot
sephirothn
Very useful, Thank’s
zeeshan541
can tell u after using the tool
projects416
Great Work! Thanks a lot
Edvard
You’re welcome! All credits goes to mr. Jignesh Parmar!