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Summer-Solstice Solar Arc of Trees for Free Harvest of Shade & Cooling

See how this ideal orientation of home and landscape trees (in water-harvesting basins) to the sun—plus appropriately sized equator-facing roof overhang—maximizes the on-site potential to freely/passively harvest cooling shade in summer, generate rooftop-solar power & solar hot water year round, while also maintaining ideal solar access in winter.
Active SystemsPassive SystemsRainwater HarvestingSun and Shade Harvesting

Winter-Solstice Solar Arc for Free Harvest of Sun & Heating

See how this ideal orientation of home and landscape trees (within water-harvesting basins) to the sun—plus appropriately sized equator-facing roof overhang—maximizes the on-site potential to freely/passively harvest warming sun and light in winter, generate rooftop-solar power & solar hot water year round, while also harvesting cooling shade in summer.
Active SystemsPassive SystemsRainwater HarvestingSun and Shade Harvesting

Winter Solstice Sun and Shadow Paths—Micro version

This video illustrates the sun’s path (and the shadows it casts) on the winter solstice—the day with the longest shadows of the year—for a site at 32˚ N latitude. Awareness of such shadow paths enables you to maintain winter sun access.
Active SystemsPassive SystemsSun and Shade Harvesting
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