1️⃣ A good-sized residential solar system (e.g. a 5-kW system with 15 AE Solar modules) can be installed on 300 square feet of roof. Square footage is length times height, so a 15’ x 20’ roof has 300 square feet. A nice, clean rectangular roof is great, but hardly the norm. We design solar energy systems for all kinds of roof configurations.
2️⃣ On the Northern side, the sun is always to our south, so roofs ideally should face true south. But, with today’s improved panels, a roof facing east, southeast, southwest or west also works.
Again, using solar language, south-facing roofs are 100% of the ideal while panels on east or west-facing roofs produce about 85% of the ideal amount. That is still a lot of suns that can be captured and put to good use.
3️⃣ Trees within 50 feet of your house will almost certainly shade a portion of the roof during the day. To measure your roof’s shade, use the general rule that trees cast a shadow about three times their height. Also, shadows are longer during the winter as the sun is lower in the sky, so a roof that’s shade-free in the summer isn’t necessarily shade-free in the winter.
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By: AESOLAR Title: Rooftop Installations Sourced From: www.youtube.com/watch?v=xmm_hEoqyAI
