.EPW File Extension
File TypeEnergyPlus Weather Data File
What is an EPW file?
Weather data file saved in the standard EnergyPlus format; used by EnergyPlus energy simulation software, developed by the U.S. Department of Energy (DoE); contains weather data that is used for running energy usage simulations.
Weather data is available in the EnergyPlus (EPW) format for more than 2100 locations in over 100 countries.