We created two shadow simulations for a client’s solar panel system.
The first one shows the least efficient state, December 21st – when the sun shines the least:
The second one represents the most optimal situation, June 22nd – when the area receives the most sunlight:
The client wanted to see how much sunlight they could expect on their less-than-ideal, 70°-oriented roof.
June 22
• 70° northeast-facing roof: 04:06 - 16:13 ≈ 12h of sunlight
• 250° southwest-facing roof: 07:37 - 19:17 ≈ 12h of sunlightDecember 21
• 70° northeast-facing roof: 07:37 - 11:25 ≈ 4h of sunlight
• 250° southwest-facing roof: 08:27 - 15:51 ≈ 7h of sunlightOverall, the incoming sunlight on the 70° northeast-facing roof varies between 4 to 12 hours throughout the year.
Simulation was rendered by using Dr. Andrew J. Marsh's sun path tracker. https://andrewmarsh.com/about/