In adelaide panels on a 10 degree roof west facing will give you 88 of the power of panels on a perfect north facing 30 degree roof.
Solar panels north west facing roof.
Solar panels that face north west will produce around 5 less electricity overall than north facing panels.
I get asked this a lot and there isn t really a simple answer.
It is not worth the expense.
The preference is a north facing roof but there arguments about the benefits of placing panels on a west facing roof.
If you have the option to place the panels in more of a north east or north west direction it is recommended.
Can solar panels be fitted if your roof is east west facing.
You also can mount solar panels on roofs that face east or west on the roof of another building like a barn or garage or on the ground.
Why orientation matters with rooftop solar in general solar panels that are oriented directly east or directly west will produce about 20 percent less electricity than if they were facing south.
If you don t have a south facing roof east or west facing panels can also be an option you will typically see only a 20 decrease in energy production from a roof facing due east or west.
Panels mounted on a standard pitch roof facing east or west will produce approximately 15 less output than panels mounted on a south facing roof of a standard pitch.
You either accept that your output will be down to the sort of levels in the table above or you spend a little more money and try to maximise the your output with technology.
However the economics of installing solar panels on a roof that does not face the south still usually stack up for the homeowner.
If you re roof runs directly through the east west orientation there would be no real difference in the energy generated by the panels and the installer is correct about the energy loss through the additional wiring although.
Let s walk you through an average day august 6th to be exact.
North facing panels on the other hand generally produce much less energy than south facing panels and usually present challenges for homeowners looking.
In other words the absolute best you can hope to get is a 12 improvement by moving the panels.
The diagram shows how the sun passes over a house with solar panels on the south and west facing roof surfaces.
Their electricity production through the day will be between that of north and facing panels and that of west facing panels.
Depending on your location and roof pitch you re going to lose somewhere between 10 20 efficiency as a result of not having panels facing in a due north direction.
Adding modules on the north side of the roof will not add much bang for the customer s solar buck and would qualify as solar malpractice in my book.