Exemplary Weather and Energy (EWE) Index April 2024

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 their 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 3.7% higher than the long-term average. The cooling peak load was lower than the long-term average for all archetypes (32.1%, 27.6% and 37.4% 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.

Adelaide experienced a more humid and cool April compared to the long-term average. The GHI and wind speed were comparably similar to the long-term average.

Weather Index



BRISBANE

Energy Index (%)

The solar PV simulation output results were 10.2% lower than the long-term average. The cooling peak load was higher than the long-term average for all archetypes (11.5%, 16.9% and 34.4% 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 comparably warmer and more humid April than the long-term average. The GHI and wind speed were lower than the long-term average.

Weather Index



CANBERRA

Energy Index (%)

The solar PV simulation output results were 2.5% higher than the long-term average. The cooling peak load was higher than the long-term average for all archetypes (62.6%, 31.1% and 30.1% 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.

Canberra experienced a more humid and cool April compared to the long-term average. The GHI and wind speed were higher than the long-term average.

Weather Index



DARWIN

Energy Index (%)

The solar PV simulation output results were 4.2% lower than the long-term average. The cooling peak load was 5.4%, 2% lower for the 3-storey office and 10 storey office while 0.8% higher for 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.

Darwin experienced a slightly warmer and less humid April than the long-term average. The GHI and wind speed were lower than the long-term average.

Weather Index



HOBART

Energy Index (%)

The solar PV simulation output results were 4.3% higher than the long-term average. The cooling peak load was lower than the long-term average for all archetypes (19.4% for 3-storey office and 35.3% for 10-storey office 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 a comparably less humid and warmer April compared to the long-term average. The GHI and wind speed were similar to the long-term average.

Weather Index



MELBOURNE

Energy Index (%)

The solar PV simulation output results were 10.6% lower than the long-term average. All archetypes saw a n increase in cooling peak load. The cooling peak load was 34.4% and 45.7% for the 3-storey office and 10-storey office, 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.

Melbourne experienced a more humid and cooler April compared to the long-term average. The GHI was higher than the long-term average.

Weather Index



PERTH

Energy Index (%)

The solar PV simulation output results were 10.6% higher than the long-term average. The cooling peak load was 3.0%, 4.5% lower for the 3-storey office and 10-storey office while 25.0% higher for the supermarket. 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 a less humid and slightly cooler April compared to the long-term average. The GHI and wind speed were much higher than the long-term average.

Weather Index



SYDNEY

Energy Index (%)

The solar PV simulation output results were 8.3% lower than the long-term average. The cooling peak load was 2.2%, 6.5% higher for the 3-storey office and 10-storey office while 4.3% lower for the supermarket. 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 of normal temperatures April compared to the long-term average. The GHI was lower while wind speed was similar to the long-term average.

Weather Index



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