Exemplary Weather and Energy (EWE) Index October 2023

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 to 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. Solar irradiation data courtesy of Solcast.

Archetypical buildings and systems

3-storey office

10-storey office

Supermarket

5kW domestic PV system

ADELAIDE

Energy Index (%)

The solar PV simulation output results were 10.2% higher than the long-term average. Heating energy consumption was 12.3% and 23.9% higher for the 10-storey office and 3-storey office respectively. Cooling energy consumption was 34.2%, 29.4% and 20.4% lower for the 10-storey, 3-storey offices and the supermarket, respectively.

Adelaide experienced a slightly humid and cooler October compared to the long-term average. The wind speeds and GHI tended to be slightly higher throughout the day.

Weather Index



BRISBANE

Energy Index (%)

The solar PV simulation output results were the same as the long-term average. Heating energy consumption was 53.8%, 75%, and 50.7% lower for the 10-storey office, 3-storey office and supermarket buildings, respectively.

Brisbane experienced a windy and humid October compared to the long-term average. The temperature and GHI were similar to the long-term average.

Weather Index



CANBERRA

Energy Index (%)

The solar PV simulation output results were 7.1% higher than the long-term average. Cooling energy consumption was 35.5%, 30.0% and 12.9% higher for 10-storey office, 3-storey office and the supermarket buildings, respectively.

Canberra experienced a windy and warmer October compared to the long-term average. Humidity was lower and GHI was higher than the average.

Weather Index



DARWIN

Energy Index (%)

The solar PV simulation output results were 1.4% higher than the long-term average. Cooling energy consumption was 13.1%, 12.6% and 2.7% lower than the long-term average for the 10-storey, 3-storey offices and the supermarket, respectively.

Darwin experienced a slightly less humid and slightly warmer October compared to the long-term average. The wind speeds were similar to the average, and the GHI was slightly higher than the long-term average.

Weather Index



HOBART

Energy Index (%)

The solar PV simulation output results were 2.1% higher than the long-term average. For the 10-storey and 3-storey office buildings respectively: heating energy consumption was 55% and 52.7% lower, while cooling energy consumption was 24.8% and 23.6% higher than average.

Hobart experienced a less humid and comparatively warmer October compared to the long-term average. The wind speeds were faster in the afternoon and the GHI were higher than the average.

Weather Index



MELBOURNE

Energy Index (%)

The solar PV simulation output results were 3.5% lower than the long-term average. For the supermarket archetype, cooling and heating energy consumptions were 62.4% lower and 77.8% higher respectively.

Melbourne experienced a more humid and warmer October compared to the long-term average. The GHI was slightly higher than average in the afternoons only.

Weather Index



PERTH

Energy Index (%)

The solar PV simulation output results were 12.3% higher than the long-term average. For the 10-storey office, 3-storey office and the supermarket respectively: heating energy consumption was 92.4%, 90.8% and 74.8% lower than average, while cooling energy consumption was 62.1%, 52.3%, and 83.3% higher than average.

Perth experienced a significantly warmer and humid October compared to the long-term average. The wind speeds were slower and the GHI was much higher than the long-term average.

Weather Index



SYDNEY

Energy Index (%)

The solar PV simulation output results were 16.6% higher than the long-term average. Cooling energy consumption was 36.5%, 36.7% and 23.4% higher for the 10-storey offices, 3-storey offices and supermarket respectively while heating energy consumption was 18.1%, 27.9% and 10.4% lower.

Sydney experienced a relatively more humid and warmer October compared to the long-term average. The wind speeds and the GHI were much higher as well.

Weather Index



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