Are vital inputs in order to accurately calculate the solar power potential for a property.
Best position for solar panels perth.
Perth receives a lot of sun throughout the year however the winter months and the shoulder seasons do see a considerable drop in sunshine.
Once again referring to the graph above one can see that even northeasterly and northwesterly facing panels will be largely operating at around the 90 of their rated outputs.
This is because the sun is always in the southern half of the sky in the northern hemisphere.
Panels that face north will produce the most electricity overall.
If your property is located in the northern hemisphere panels facing south will perform best.
There is of course deviance throughout the seasons but ideally solar panels should be facing as close to true north as possible to reduce the impact that the winter seasons have on energy yields.
This means that for best results the roof pitch of your property should ideally be equal to the latitude angle with the panels mounted at the same angle as the roof.
How much will your roof direction affect the output of your solar panels.
Solar panels installed on a roof facing southwest or southeast will generally produce about 8 less power than the same panels in the same climate on a south facing roof.
Australia being in the southern hemisphere experiences a sun that is predominantly coming at us from the north.
That s because you ll get way more sunlight hitting the roof thereby converting into way more energy.
North facing solar panels are often the best choice for people who are at home during the day.
Variations in the tilt can make a big difference to efficiency though not as marked as with orientation so strive for somewhere between 20 40º.
Your solar installer will calculate the magnetic declination of your home to make sure the panels are fitted to face true south.
This depends on both the direction of your roof and the pitch of the roof.
As we have mentioned before in the southern hemisphere due north is usually the best orientation for panels.
By solar choice staff on 24 june 2019 determining the orientation and tilt angle of your solar power generation system is one of the most important considerations in designing your solar power system.
The direction solar panels face along with their angle or tilt at that orientation.
Anything more or less than this will reduce efficiency far too much.
In fact all southern hemisphere locations should ideally position panels in a northerly direction.
Solar panels work best when the light hitting them comes in at a 90º angle so the ideal tilt for australian sun is at 32º.
For the best results solar panels should be oriented towards the south.
True south or the geographic south will yield the best results overall.