Solar Panels East West Roof

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.

Solar panels east west roof.

However a new solar panel mounting system aims to alleviate some of the challenge of putting solar on east west roofs or non south facing roofs as it were and could open up the door for more potential solar homeowners to get the benefits of a solar array on their roof. I plan to have solar panels on the north east west roof. The problem is i have a tall pole 14m to the north of my roof line. 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.

At latitude 36deg s i calculated that it will cast a moving shadow across all my panels 6 months of the year. Around the world solar developers are turning array designs on their head and choosing to go east west instead. The height is 27m. Pvwatts predicted 20 less production due to facing east versus south.

This has more to do with room than anything else so i have to roll with what i have. However under the right circumstances it is possible to have an east west split of solar panels on a single inverter input like the diagram above imagine the left hand 3 panels facing west and the right hand 3 panels facing east and still have almost the same performance as if they were on separate strings attached to a two seperate. My house has a east west facing roof. My installer took a reading of my roof and because my pitch is shallow i can get away with panels on the east side.

I am having 16 panels installed onto the east side and 19 on the west facing. However the economics of installing solar panels on a roof that does not face the south still usually stack up for the homeowner. My house faces south. 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.

I would be grateful for any thoughts suggestions on the direction to face solar panels. That goes double if you get any fog or mist in the morning which will reduce the efficiency of the east facing panels. Following on from a recent feature in pv tech power volume 14 here are the five key. I figured i d have to get tigo or enphase.

Jim panels on a south facing roof even laid flat will almost invariably produce more electricity that east facing panels.