Solar Panels On South Facing Roof

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.

Solar panels on south facing roof.

In the uk south facing panels will generate more than other orientations. For most australians south is the worst direction modules can face and some people consider installing panels facing south almost as large a mistake as installing them upside down. 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. The closer to horizontal the better it will be for solar.

What happens if your roof isn t facing south. Even with this decrease in performance solar panels will produce enough electricity to save you hundreds of dollars a year. An ideal south facing roof here is pitched at 7 12 39ish degrees and the north side of that roof will produce less than half as much electricity. 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.

Even if your roof doesn t face directly south you can still produce quite a bit of electricity. The diagram shows how the sun passes over a house with solar panels on the south and west facing roof surfaces. We also took at look at a tilt angle of 40 for the south facing orientations mainly just to show that a south facing roof with a steep pitch is probably not a good place for solar panels. The flatter a south facing roof is i e.

North facing panels on the other hand generally produce. In sydney south facing solar panels will typically produce around 28 less energy than north facing panels and the steeper the roof the less. When the sun shines onto the surface at an angle the panel will still generate electricity but it will be less effective. However the economics of installing solar panels on a roof that does not face the south still usually stack up for the homeowner.

Do you have to have a south facing roof to have solar panels. As we re in the northern hemisphere the best solar panel orientation is obviously south but. Hi i live in hawaii 96740 and have a south facing roof. Solar panels perform at their best when the sun is shining straight on to the panels.

The sun rises at 5 52 am and begins directly shining on the south facing panels at 8 15. Let s walk you through an average day august 6th to be exact. Why orientation matters with rooftop solar. The results backed us up on this theory showing poor.