A nifty app to calculate average daily energy generated by a solar panel, subject to the geographic location it is installed. The app takes into account average sunlight hours available on a location. The location should be between arctic and ant-arctic latitudes. Location can be entered manually or automatically obtained through GPS. Parameters required are as below:

1) Latitude in degrees
2) Longitude in degrees
3) Percentage efficiency of solar panel
4) Rated power of solar panel in kilowatts

Output is in kilowatt hours per day.
Disclaimer: This app is only for general estimates and should in no way be referred for any precise calculations to be submitted.