During daylight hours, your system will be generating electricity at varying rates depending on the amount of sunshine. The more sunlight that falls on the solar array the more electricity is generated.

Variable factors such as cloud cover, seasonal solar angle variations, shading or soiling of the solar array will have an effect on the electricity output. Note that you do not need to change your energy usage lifestyle to correspond with your solar system. Your energy consumption will be supplied by both solar and the grid.

The table below shows the expected system performance using a 1kilowatt (1kW) solar array facing true north at a tilt angle equal to the latitude angle, without shading.

Location

Best Month

(kWh per day)

Worst Month

(kWh per day)

Annual Average (kWh per day)

Brisbane

4.6

3.3

4.0

Sydney

4.8

2.8

3.9

Melbourne

4.6

2.2

3.6

Adelaide

5.7

2.5

4.3

Canberra

5.3

2.8

4.2

Darwin

5.1

3.5

4.5

Alice Springs

5.7

2.5

4.3

Perth

5.4

2.9

4.4

Hobart

4.6

2.1

3.5

Cairns

4.4

3.2

3.9

*System performance has been determined in accordance with AS/NZ 5033 guidelines. An average system efficiency has been used - includes PV array, wiring and inverter losses

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