Solar Panels South Facing Wall

In the northern hemisphere the sun crosses the sky a little to the south which means putting solar panels on a south facing roof is the best way for homeowners to capture the most solar energy.

Solar panels south facing wall.

4258 kwhrs yr on the roof and 3167 kwhrs yr on the wall. Go west young one. Updated may 18 2020. Wall mounted solar arrays produce less but work in a pinch.

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. Also there will be more risk of shade on the wall. Therefore directions like southwest or southeast are fine. Well when it comes to solar panels west is second best.

But what if you don t have a suitable south facing roof. Installers have adapted pre existing mounting and racking technology or developed their own to install solar panels on the south facing walls of buildings. Here are simulations for roof at 30 degrees facing south and mounted vertically on wall facing south. Both options are for 14x300w panels and otherwise identical.

Wall mounted vertical panels are still an energy generating option for solar installers. If you have space in your yard the panels can also be mounted on the ground. Although this is more unusual some people choose to mount panels on a south facing wall. This is less expensive and also gives easy access to the panels if you need to clean them brush off snow or do any other maintenance.