Solar Panels East West Roof

This has more to do with room than anything else so i have to roll with what i have.

Solar panels east west roof.

My house has a east west facing roof. Around the world solar developers are turning array designs on their head and choosing to go east west instead. I have a house with an east west facing 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.

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. I would be grateful for any thoughts suggestions on the direction to face solar panels. 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. Following on from a recent feature in pv tech power volume 14 here are the five key.

That goes double if you get any fog or mist in the morning which will reduce the efficiency of the east facing panels. At latitude 36deg s i calculated that it will cast a moving shadow across all my panels 6 months of the year. I am having 16 panels installed onto the east side and 19 on the west facing. 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.

I figured i d have to get tigo or enphase. 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 had an 8 4kw array installed on the east roof and it is working decently considering the orientation 18 1 mw hrs over 36 months in minnesota or 6 mw hrs year. The height is 27m.

Pvwatts predicted 20 less production due to facing east versus south. The problem is i have a tall pole 14m to the north of my roof line. However the economics of installing solar panels on a roof that does not face the south still usually stack up for the homeowner. Jim panels on a south facing roof even laid flat will almost invariably produce more electricity that east facing panels.

I plan to have solar panels on the north east west roof.