Exemplary Weather and Energy (EWE) Index April 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 had a more humid April, with higher early morning temperatures than the long-term average with a comparable profile for the rest of the day. The GHI and the wind speeds were also comparable.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
+0.8	+0.2	-1.7


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
+4.1	+1.0	+1.2


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
+68	-0.1	+2.4

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
N.A.	+3.9	N.A.	+4.4	+18	+12
Solar PV
+3.2%

The solar PV simulation output results were 3.2% up on the average. Cooling peak loads saw a 14% decrease in the 3-storey office, 17% in the 10-storey office, while the supermarket saw a 22% decrease.

BRISBANE

Brisbane had a significantly less humid April, with temperatures comparable to the long-term average. The GHI and the wind speeds were slightly higher.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
+0.0	+0.6	+1.2


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
-7.0	-9.1	-7.1


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
+43	+1.1	+1.1

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
N.A.	+4.0	N.A.	+3.7	N.A.	+3.7
Solar PV
-2.5%

The solar PV simulation output results were 2.5% lower than average, and all the building archetypes saw increased cooling consumption. Cooling peak loads were 6.0% and 3.3% higher for the 3-storey office and the 10-storey office, respectively, while the supermarket saw a 7.4% decrease.

CANBERRA

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

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
-0.2	-0.8	-1.9


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
+9.4	+8.0	+4.7


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
-25	+6.1	+6.2

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
+29	-33	+30	-21	-12	-27
Solar PV
-2.8%

The solar PV simulation output results were 2.8% down on the average. Cooling peak loads decreased by 16% in the 3-storey office, 25% in the 10-storey office and 10% in the supermarket.

DARWIN

Darwin experienced a significantly more humid April with temperatures comparable to the long-term average. GHI and wind speeds were significantly lower, leading to a 12.5% decrease in the PV simulation output.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
+0.4	+0.1	+0.0


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
+9.5	+6.5	+2.5


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
-30	-11	-2.4

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
N.A.	+7.6	N.A.	+7.1	N.A.	+4.2
Solar PV
-12.4%

Compared to the long-term average, all the building archetypes had higher cooling consumption. Cooling peak loads were up 2.7% for the 3-storey office building, 4.4% for the 10-storey office building and 2.2% in the supermarket.

HOBART

Hobart experienced a more humid and hotter April compared to the long-term average. The wind speeds and GHI were higher, producing a 1.3% increase in the PV simulation output.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
+0.8	+0.4	+0.7


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
+1.2	+2.5	-0.2


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
-5.7	+6.3	+2.6

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
-22	+3.2	-15	-11	-38	-11
Solar PV
+1.3%

While cooling peak loads were up 5.8% and 0.5% for the 3-storey and 10-storey office (respectively), the heating peak loads were 55% lower for both archetypes.

MELBOURNE

Melbourne experienced a more humid and cooler April compared to the long-term average. The wind speeds were lower, and the GHI showed little change, resulting in a 3.3% decrease in the PV simulation output.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
-0.1	-0.3	-0.7


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
+6.6	+8.5	+6.4


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
+36	+2.0	+8.3

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
N.A.	-18	N.A.	-15	N.A.	-62
Solar PV
-3.3%

All the archetypes experienced lower cooling consumption. Cooling peak loads were 12%, 20%, and 53% lower for the 3-storey office, 10-storey office, and supermarket, respectively.

PERTH

Perth experienced a significantly more humid and cooler April compared to the long-term average. The GHI was higher, but in general the wind speeds were similar, resulting in a 0.8% decrease in the PV simulation output.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
-1.9	-1.9	-1.7


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
+5.6	+6.4	+5.0


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
+36	+2.0	+8.3

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
N.A.	-21	N.A.	-19	N.A.	-72
Solar PV
-0.8%

All the archetypes experienced lower cooling consumption. Cooling peak loads were 33%, 34%, and 36% lower for the 3-storey office, 10-storey office, and supermarket, respectively.

SYDNEY

Sydney experienced a more humid and cooler April compared to the long-term average. The GHI and wind speeds were lower, leading to a 10% decrease in the PV simulation output.

Weather Index


Temperature (°C)
Mean Min	Mean Avg	Mean Max
-1.1	-0.9	-0.5


Relative Humidity (%pt)
Mean Min	Mean Avg	Mean Max
+7.0	+6.0	+4.1


Daily Sums of GHI (%)
Mean Min	Mean Avg	Mean Max
-11	-7.8	+0.3

Energy Index (%)


10-storey		3-storey		Supermarket
Heating	Cooling	Heating	Cooling	Heating	Cooling
N.A.	-20	N.A.	-17	N.A.	-17
Solar PV
-10%

All the archetypes experienced lower cooling consumption. Cooling peak loads were 13% lower for the 3-storey office and the 10-storey office, and 5% lower for the supermarket.

Exemplary Weather and Energy (EWE) Index April 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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Like this:

Leave a ReplyCancel reply

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