Exemplary Energy releases complete 34-year weather data

The company says the records will help building services engineers and managers produce more accurate simulations.

The data includes NatHERS/CSIRO “climate zones” and extra sites within metro areas to allow for micro-climate differentiation. The full features include:

• Full historical weather records (1990–2023) in ACDB, TMY2 and EPW file formats
• Reference meteorological year (RMY) derived from:
  • 34 years
  • 15 years
  • 15 years with precipitation
• Three typical meteorological years (TMY) for façade-dominated, neutral and deep plan buildings
• Extreme meteorological years (XMY) for solar PV – 1, 10, 90, and 99th percentile
• Ersatz future meteorological year (EFMY) 2050.

The data is available through Exemplary Energy’s sales portal, which includes an interactive map to aid selection.

The University of New South Wales (UNSW) recently purchased the climate data for all 225 stations for the APVI’s SunSPOT interactive website, which is designed to encourage domestic-scale solar photovoltaic power adoption. UNSW chose RMYs based on the most recent 15 years of data “as better reflecting future climate”.

Additionally, eight capital city hygrothermal RMYs (15 years with precipitation) were donated to Germany’s Fraunhoffer Institute for inclusion in their WUFI version 7, for use by AIRAH building physicists since March 2025.

Readers can test any of these weather and climate files for free with a one-off download from Exemplary’s data file portal.

RTY files are available monthly for the eight capital cities as used in the freely published Exemplary Weather and Energy Index (EWEI), making the data immediately useful for digital twin operational monitoring for sound facilities management.

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