Weather Files - The

Speed and direction to estimate natural ventilation and infiltration.

Reliable weather data is available through several major repositories:

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. The Weather Files

As the climate shifts, historical data (TMY) may become less representative of a building's future lifespan. Engineers now use to "future-proof" designs.

Tools like the WeatherShift™ tool use climate model projections to adjust historical files for future decades (e.g., 2050 or 2080). Speed and direction to estimate natural ventilation and

A standard weather file stores hourly information for a full year, including: Dry-bulb and dew-point temperatures.

A widely cited repository for updated TMYx files and climate change data. Other common versions include TMY3 and IWEC files

These files help predict how cooling demands might increase and heating demands decrease as global temperatures rise. 4. Sourcing & Global Repositories