Solar Panels South Facing Wall

Solar panels facing east or west won t get as much light as those on a southern facing roof.

Solar panels south facing wall.

See the chart below for a production breakdown. The same installation with vertical solar panels however will produce 4 173 kwh each year a drop of 32 in yearly production. This will only work if the wall receives lots of direct sunlight i e. Installers have adapted pre existing mounting and racking technology or developed their own to install solar panels on the south facing walls of buildings.

One solution is to compensate by increasing the solar collector area either using more panels or larger collectors. If your roof faces east west rather than north south you have a few options. If your roof doesn t face due south you could install solar modules on a south facing wall instead. A south facing 5kw installation in minnesota with solar panels at the optimal tilt angle of 45 degrees will produce around 6 148 kwh a year.

Solar panels perform at their best when the sun is shining straight on to the panels. In the uk south facing panels will generate more than other orientations. Trees bushes or other buildings that cast shadows on the wall will make the solar panels less efficient. When the sun shines onto the surface at an angle the panel will still generate electricity but it will be less effective.