These contain data from a specific, real-world year. They are essential for calibrating building models against actual utility bills or performance data. 2. Core Data Components
Relative humidity and barometric pressure. 3. Future Weather Files & Climate Change The Weather Files
The .epw (EnergyPlus Weather) format is a global standard developed by the U.S. Department of Energy . Other common versions include TMY3 and IWEC files. These contain data from a specific, real-world year
Direct and diffuse solar intensity, critical for calculating heat gain. These contain data from a specific
A primary source for thousands of international weather locations.