For my esteemed RE-Wrenches colleagues, this will calculate annual energy production at 36 different azimuth at 10° increments for a given pitch angle.


Address (Do not enter units, apartments, or any extraneous data other than the street address):


City:


State:


Zip:



Module Watts:
Enter watts as a number only. You might want to enter 1,000 watts with a quantity of one to model a 1kW system.


Module Quantity:
The system rating modeled will be watts above times the quantity you enter here.


Tilt Angle:
1:12 4.76° | 2:12 9.46° | 3:12 14.04° | 4:12 18.43° | 5:12 22.62° | 6:12 26.57° | 7:12 30.26° | 8:12 33.69° | 9:12 36.87°


System Losses:
PVWATTS Default is 14% (enter decimal percentage only without percent sign):



This tool will output 36 data points showing the monthly and annual kWh production and solar radiation figure from PVWATTS using TMY3 weather data. It will return data in a CSV file that you can use in a spreadsheet. You can download a separate CSV file for each tilt angle you want to model. Just change the tilt angle above and run the tool again.



Click once - be patient - need to grind out some data!
Your browser will download a CSV file when ready.

Use of this tool obligates you to buy me a beer the next time you see me. :)

Tool provided as a courtesy with no responsibility taken for the results by:

Jason Szumlanski
Florida Solar Design Group
http://floridasolardesigngroup.com