Exemplary Weather and Energy (EWE) Index May 2022

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.

Archetypical buildings and systems

3-storey office

10-storey office

Supermarket

5kW domestic PV system


ADELAIDE

Weather Index (monthly means)

Adelaide had a slightly more humid May with temperatures comparable to the long term average. The solar insolation was higher, while the wind speed observations were lower throughout the day.

Energy Index (%)

The solar PV simulation output results were 6 % higher than average and the heating energy consumptions of all the commercial building archetypes were lower. The north-facing and south-facing zones of the 10-storey building had 25% lower heating consumption, while the east-facing zone and the west-facing zone saw, respectively, 18% and 28% less heating consumption.


BRISBANE

Weather Index (monthly means)

Brisbane had a slightly warmer and more humid May, particularly during daytime. The solar irradiation received was lower, and the wind speed observations were comparable to the long term average.

Energy Index (%)

The solar PV simulation output results were 37.5 % lower than average and the cooling energy consumptions of all the commercial building archetypes were higher.


CANBERRA

Weather Index (monthly means)

Canberra experienced a more humid May, with temperatures mostly comparable to the long term average. The solar insolation was lower, particularly after noon, and the windspeed observations were slightly higher.

Energy Index (%)

The solar PV simulation output results were 14.4 % lower than average and all the building archetypes experienced higher heating and lower cooling requirements. For the 10-storey building, heating consumptions were, respectively, 35% and 71% higher in the north-facing and east-facing zones, 5% higher for the west-facing zone, while the east-facing zone saw an increase of 9%. On the other hand, the cooling consumptions were 19% lower for the north-facing, east-facing, and west-facing zones, while the south-facing zone saw 15% decrease.


HOBART

Weather Index (monthly means)

Hobart experienced temperatures mostly comparable to the long term average in May, with significantly higher relative humidity. The windspeed observations and the solar insolation were slightly lower throughout the day.

Energy Index (%)

The solar PV simulation output results were 9.5% lower and the building archetypes had higher heating consumption compared to the long term average. The north-facing, south-facing, and east-facing zones of the 10-storey building had roughly 11% higher heating consumption, while the west-facing zone saw 8% less cooling consumption


MELBOURNE

Weather Index (monthly means)

Melbourne had a slightly colder and more humid May compared to the long term average. The windspeed observations were slightly lower throughout the day, and the solar insolation was also significantly lower, particularly in the afternoon.

Energy Index (%)

The solar PV simulation output results were 20% lower and the building archetypes had slightly lower cooling consumption and significantly higher heating requirements compared to the long term average. For the 10-storey building, heating consumptions were 37% higher in the west-facing and south-facing zones, while the east-facing and north-facing zones saw an increase of 50%. On the other hand, the cooling consumptions were roughly 20% lower for the north-facing, east-facing, and south-facing zones, while the west-facing zone saw 25% decrease.


PERTH

Weather Index (monthly means)

Perth experienced temperatures and humidity mostly comparable to the long term average in May. The windspeed observations were significantly higher throughout the day, and the solar insolation was slightly higher.

Energy Index (%)

The solar PV simulation output results were 1.6% higher. The 3-storey and 10-storey building archetypes had slightly lower cooling consumption and higher heating requirements compared to the long term average, while the opposite was seen in the supermarket simulation.


SYDNEY

Weather Index (monthly means)

Sydney experienced a more humid weather in May, with temperatures mostly comparable to the long term average. The solar insolation and the wind speed observations were lower throughout the day, which caused the solar PV simulation output results to be 11.5 % lower.

Energy Index (%)

The 3-storey and 10-storey building archetypes had slightly lower cooling and heating consumptions compared to the long term average, while the supermarket simulation saw a significant increase in cooling consumption and decrease in heating requirements. For the 10-storey building, heating consumptions were, respectively, 39% and 23% higher in the east-facing and north-facing zones, while the west-facing and south-facing zones saw a decrease of 5%. On the other hand, the cooling consumptions were roughly 5% lower for the north-facing and east-facing zones, while the south-facing zone saw a 8% increased consumptions.

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