The optimum angle varies throughout the year depending on the seasons and your location and this calculator shows the difference in sun height on a month by month.
Solar panel angle melbourne australia.
We are considering to install solar panels on the north and south facing side of the roof.
The roof is tilted at about 15 degrees.
What if you have a flat roof.
To get the best out of your photovoltaic panels you need to angle them towards the sun.
I would be grateful for any thoughts suggestions on the direction to face solar panels.
As indicated in the above diagram an angle of approximately 32 is the best but anywhere between 20 and 40 is optimal for around a 90 efficiency.
Perth latitude 32º.
The geoscience australia website www ga gov au allows you to find the latitude of more than 250 000 place names in australia and calculate the sun angle at any time of the day on any day of the year.
Blantyre is at 15 degrees south almost at the same latitude than darwin in australia.
Generally speaking unless your roof is flat the pitch of your home s roof is going to be the angle your solar panels are mounted at.
If your roof is totally flat then i strongly recommend mounting the solar panels at an angle of at least 10.
In australia common roof pitches are 15 or 22 5 so your modules will most likely be mounted at one of those angles.
This is really important because it will allow any rain to run off the modules.
In fact all southern hemisphere locations should ideally position panels in a northerly direction.
If your latitude is below 25 use the latitude times 0 87.
If your latitude is above 50 see other situationsbelow.
There is no shading from either side.
Ideally solar panels would be positioned at an angle of 38 in melbourne equal to the latitude angle of the city 37 81.
If your latitude is between 25 and 50 use the latitude times 0 76 plus 3 1 degrees.
On a flat roof the tilt is 0 whereas if the angles were to be facing a wall it would be 90.
Solar output losses when the panel angle is not ideal.
This solar angle calculator tells you the optimum angle to get the best out of your system.
Sydney latitude 34º.
Use one of these formulas to find the best angle from the horizontal at which the panel should be tilted.
Melbourne latitude 38º.
For australia solar power yields are higher when panels face north.
The tilt involves primarily the angle that the panels are facing up into the sky.
Optimal tilt 31º in every capital except darwin output is maximized when the solar panel tilt is at least a few degrees less than the latitude.
