The Weather Files -

Speed and direction to estimate natural ventilation and infiltration.

Direct and diffuse solar intensity, critical for calculating heat gain. 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. Speed and direction to estimate natural ventilation and

As the climate shifts, historical data (TMY) may become less representative of a building's future lifespan. Engineers now use to "future-proof" designs. 2050 or 2080).

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