Exemplary Weather and Energy (EWE) Index June 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

BRISBANE

CANBERRA

DARWIN

HOBART

MELBOURNE

PERTH

SYDNEY

ADELAIDE

Adelaide experienced a less humid and warmer June compared to the long-term average. The GHI was lower, and the wind speeds were notably higher.

Weather Index



Mean Min	Mean Avg	Mean Max
+2.0	+1.3	+0.4


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
+1.6	-3.8	-4.6


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
-3.6	-8.3	+0.3

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
-31	+160	-27	+55	-13	+290
Solar PV
-15%

The solar PV simulation output results were 15% lower than the long-term average. All archetypes saw a notable increase in cooling peak loads, and a decrease in heating peak loads. The cooling peak loads were 87%, 214%, and 68% higher for the 3-storey office, 10-storey office, and supermarket, respectively. The heating peak loads were 41%, 48%, and 27% lower for the 3-storey office, 10-storey office, and supermarket, respectively.

BRISBANE

Brisbane experienced a less humid and warmer June compared to the long-term average. The GHI was greater, while the wind speeds were comparable.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
-0.3	+0.3	+0.7


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
-7.4	-7.1	-7.0


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
+46	+8.7	+2.1

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
-37	+9.3	-37	+7.9	-10	+2.4
Solar PV
+8.3%

The solar PV simulation output results were 8.3% lower than the long-term average. All archetypes saw a decrease in cooling and heating peak loads. The cooling peak loads were 23%, 25%, and 32% lower for the 3-storey office, 10-storey office, and supermarket, respectively. The heating peak loads were 47% lower for the 3-storey and 10-storey offices, and 23% lower for the supermarket.

CANBERRA

Canberra experienced a more humid and warmer June compared to the long-term average. The GHI was comparable, while the wind speeds were significantly higher.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
+1.3	+0.3	-0.3


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
+4.2	+1.7	+1.4


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
-25	-1.2	+0.6

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
+5.0	-42	+0.0	+3.2	-11	N.A.
Solar PV
+2.3%

The solar PV simulation output results were 2.3% higher than the long-term average. The 3-storey office, 10-storey office, and supermarket each saw a decrease in cooling peak loads, of 11%, 84%, and 16%, respectively. The heating peak load increased most notably by 27% for the 10-storey office.

DARWIN

Darwin experienced a more humid and warmer June compared to the long-term average. The GHI and the wind speeds were lower.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
+1.3	+1.1	+1.1


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
+8.0	+7.3	+7.5


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
-6.4	-5.7	-4.9

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
N.A.	+24	N.A.	+22	N.A.	+16
Solar PV
-8.1%

The solar PV simulation output results were 8.1% lower than the long-term average. The 3-storey office, 10-storey office, and supermarket each saw a decrease in cooling peak loads, of 19%, 21%, and 1.3%, respectively.

HOBART

Hobart experienced a slightly less humid and warmer June compared to the long-term average. The GHI was signficantly higher, and the wind speeds also tended to be higher.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
+1.2	+1.3	+1.6


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
-1.7	-2.4	-1.3


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
+11	+20	+6.1

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
-41	N.A.	-40	N.A.	-21	N.A.
Solar PV
+13%

The solar PV simulation output results were 13% higher than the long-term average. The 3-storey office and 10-storey office saw a notable increase in cooling peak loads of 106% and 113%, respectively. The heating peak loads were 25% lower for the 3-storey and 10-storey offices, and 19% lower for the supermarket.

MELBOURNE

Melbourne experienced a similarly humid and warmer June compared to the long-term average. The GHI and the wind speeds were higher.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
+0.9	+0.7	+0.7


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
+0.1	+0.7	-0.6


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
-29	-0.3	-3.5

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
-8.4	+29	-10	+28	+25	N.A.
Solar PV
-4.7%

The solar PV simulation output results were 4.7% lower than the long-term average. The 3-storey office and 10-storey office saw an increase in cooling peak loads of 14% and 24%, respectively, and the supermarket saw a decrease in cooling peak load of 100%. The heating peak loads were 32%, 36%, and 26% lower for the 3-storey office, 10-storey office, and supermarket, respectively.

PERTH

Perth experienced a notably more humid and cooler June compared to the long-term average. The GHI was higher and the wind speeds were lower.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
-2.2	-1.6	-1.2


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
+6.3	+6.0	+6.1


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
-11	+11	+4.8

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
+78	-38	+69	-19	+53	-68
Solar PV
+7.1%

The solar PV simulation output results were 7.1% higher than the long-term average. All archetypes saw a decrease in cooling peak loads and an increase in heating peak loads. For the 3-storey office, 10-storey office, and supermarket, the cooling peak loads were 32%, 50%, and 70% lower, respectively, and the heating peak loads were 21%, 23%, and 15% higher, respectively.

SYDNEY

Sydney experienced a less humid and warmer June compared to the long-term average. The GHI was significantly higher, and the wind speeds tended to be higher.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
-0.3	+0.0	+0.9


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
-4.7	-4.3	-2.9


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
-8.7	+14	-0.3

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
-24	+110	-22	+67	+14	+62
Solar PV
+15%

The solar PV simulation output results were 15% higher than the long-term average. The 3-storey office, 10-storey office, and supermarket each saw a decrease in cooling peak loads, of 37%, 49%, and 22%, respectively.

Exemplary Weather and Energy (EWE) Index June 2023

Archetypical buildings and systems

3-storey office

10-storey office

Supermarket

5kW domestic PV system

ADELAIDE

BRISBANE

CANBERRA

DARWIN

HOBART

MELBOURNE

PERTH

SYDNEY

ADELAIDE

BRISBANE

CANBERRA

DARWIN

HOBART

MELBOURNE

PERTH

SYDNEY

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Archetypical buildings and systems

3-storey office

10-storey office

Supermarket

5kW domestic PV system

ADELAIDE

BRISBANE

CANBERRA

DARWIN

HOBART

MELBOURNE

PERTH

SYDNEY

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