Exemplary Weather and Energy (EWE) Index February 2025

The Exemplary Real Time Year weather files (RTYs), current Reference Meteorological Year files (RMYs) and Ersatz Future Meteorological Years (EFMYs) used for these monthly simulations are available for purchase. This will allow clients to simulate their own designs for energy budgeting and monitoring rather than rely on analogy with the performance of these archetypical buildings and systems. Especially in mild months, small differences in energy consumptions can result in large percentage differences. Solar irradiation data courtesy of Solcast.

Archetypical buildings and systems

10-storey office

3-storey office

Supermarket

5 kW domestic
PV system

Get the Best out of our Interactive Features

This monthly report has been interactive since April 2023.  Once you have scrolled to your city of interest, check out those interactive features and how they work.  Click here to read about the introduction.

  • 1. Choose the energy or peak demand graph to best match your building or system of interest.
  • 2. Choose the weather element graph to best match the sensitivity of your building or system of interest.
  • 3. Mix and match to learn about their relative importance or sensitivity

ADELAIDE

Energy Index (%)

The solar PV simulation output results were 9.2% higher than the long-term average. The cooling peak load was higher than the long-term average for 3-storey office buildings, 10-storey office buildings and supermarket, by 1.1%, 1.4 and 6.0%, respectively. It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from a bespoke building model using our RTY data.

Adelaide experienced similar humidity and temperatures in February compared to the long-term average. The GHI was higher than the long-term average. The wind speed was higher before 10am and lower than the long-term average for the rest of the day.

Weather Index



BRISBANE

Energy Index (%)

The solar PV simulation output was higher than the long-term average by 8.6%. The cooling peak load was higher than the long-term average for all archetypes (19.8%, 22.3% and 5.7% for 3-storey office, 10-storey office and supermarket respectively). It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from a bespoke building model using our RTY data.

Brisbane experienced a warmer February with similar humidity compared to the long-term average. The GHI was lower in the afternoon and wind speed was lower in the morning and similar to the long-term average for the rest of the day.

Weather Index



CANBERRA

Energy Index (%)

The solar PV simulation output results were 4.6% higher than the long-term average. The cooling peak load was higher than the long-term average for supermarket and 10-storey office building, by 2.5% and 32.4%, respectively, and slightly lower for 3-storey office building, at 5.8%. It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from a bespoke building model using our RTY data.

Canberra experienced a warmer February. The humidity was lower than the long-term average in the morning but lower in the evening. The GHI was higher while wind speed was lower than the long-term average.

Weather Index



DARWIN

Energy Index (%)

The solar PV simulation output results were 3.2% higher than the long-term average. The cooling peak load was higher than the long-term average for 3-storey office buildings, 10-storey office buildings and supermarket, by 6.3%, 5.8% and 3.5%, respectively. It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from a bespoke building model using our RTY data.

Darwin experienced slightly warmer and more humid February compared to the long-term average. The GHI was higher at lunch time while wind speed was lower than the long-term average.

Weather Index



HOBART

Energy Index (%)

The solar PV simulation output results were 0.3% higher than the long-term average. The cooling peak load was significantly higher than the long-term average for all archetypes (36.4%, 34.8% and 42.1% for 3-storey office, 10-storey office and supermarket respectively). It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from a bespoke building model using our RTY data.

Hobart experienced slightly warmer afternoons and more humid in the mornings in February. The GHI was similar to the long-term average while the wind speed was higher.

Weather Index



MELBOURNE

Energy Index (%)

The solar PV simulation output results were 6.1% higher than the long-term average. The cooling peak load was higher than the long-term average for 3-storey and 10-storey office buildings, by 15.6% and 15.0%, respectively, and slightly lower for supermarket, at 1.7%. It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from a bespoke building model using our RTY data.

Melbourne experienced similar temperatures in February compared to the long-term average. The humidity was lower in the morning and higher in the afternoon. The GHI was higher than the long-term average in the afternoon.

Weather Index



PERTH

Energy Index (%)

The solar PV simulation output results were 5.1% higher than the long-term average. The cooling peak load was lower than the long-term average for 3-storey and 10-storey office buildings, by 15.9% and 15.0%, respectively, and slightly higher for supermarket, at 0.02%. It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from a bespoke building model using our RTY data.

Perth experienced similar humidity and temperatures in February compared to the long-term average. The wind speed was generally lower than the long-term average. The GHI was higher in the afternoon.

Weather Index



SYDNEY

Energy Index (%)

The solar PV simulation output results were 9.8% higher than the long-term average. The cooling peak load was lower than the long-term average for all archetypes (19.4%, 19.0% and 9.1% for 3-storey office, 10-storey office and supermarket respectively). It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from a bespoke building model using our RTY data.

Sydney experienced a more humid February with very similar temperature compared to the long-term average. The GHI was significantly lower and the wind speed was generally higher than the long-term average.

Weather Index



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