Solar Panels South West Facing Roof

We are looking at installing a 5kw system lg neon 2 panels and fornius inverter on a double storey house and had initially thought of splitting the panels between our north east and west facing roofs so that we got production over most of the day 8 panels north 4 east and 4 west.

Solar panels south west facing roof.

At lower pitches say 30 the east west facing panels perform slightly closer to south. Here s a quick example of a south west facing roof in london. In sydney south facing solar panels will typically produce around 28 less energy than north facing panels and the steeper the roof the less electricity they will produce. 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 diagram shows how the sun passes over a house with solar panels on the south and west facing roof surfaces. Solar panel orientation in the uk. For years homeowners who bought solar panels were advised to mount them on the roof facing south. But in the far north the difference is not so great and in townsville south facing solar panels will only produce around 17 less electricity in total than north facing ones.

As you are in the northern hemisphere you will have to orientate it to the south but the sun rises in the east both hemispheres traverses through the true south north for us in nz and sets in the west. As we re in the northern hemisphere the best solar panel orientation is obviously south but. That captures the most solar energy over the course of the day which benefits the homeowner but. At higher pitches the difference increases.

Why orientation matters with rooftop solar. Your solar panel orientation is very important when it comes to maximising the amount of electricity that your solar panels will produce. South facing panels produced a 54 percent peak reduction overall while west facing solar pv panels produced a 65 percent peak reduction. What happens if your roof isn t facing south.

Debating on a having part of my solar panels 6 out of 20 facing west to catch some sun in the winter or b am i better off making more sun all facing south and banking that extra power made in a partial credit from the electric company for use in the winter time. Hi i live in hawaii 96740 and have a south facing roof. Let s walk you through an average day august 6th to be exact. An example of a south west facing roof.

We assumed a 40 elevation for the roof. In summer the sun rises in the ese and. The sun rises at 5 52 am and begins directly shining on the south facing panels at 8 15.