Many countries provide localized data, such as the Building Performance site for Aotearoa New Zealand. An In-Depth Look at Weather Files - ClimateData.ca
These files help predict how cooling demands might increase and heating demands decrease as global temperatures rise. 4. Sourcing & Global 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.
Reliable weather data is available through several major repositories:
Direct and diffuse solar intensity, critical for calculating heat gain.