1.- All calculations are based on ASHRAE-90.1 guidelines

2.- For a comparative analysis of partial versus full load consumption, just input 100% in the percentage of days corresponding to 100% load, and input zero in the other three spaces

3.- Only fill out the green colored spaces, and then click on "calculate"

4.- Define the load profile by setting the percentage of days in which the system will operate at 100%, 75%, 50% and 25% In a year