EnergyPlus is a whole building energy simulation program that engineers, architects, and researchers use to model both energy consumption and water use in buildings. It is a console-based program that reads input and writes output to text files. It ships with a number of utilities including IDF-Editor for creating input files using a simple spreadsheet-like interface, EP-Launch for managing input and output files and performing batch simulations, and EP-Compare for graphically comparing the results of two or more simulations.