Estimate the ideal spacing between rows of solar panels to minimize shading and maximize efficiency based on latitude, tilt, and panel height. Formula: Spacing = Height / tan (Solar Altitude). In winter, the optimum angle si close to 50º, and in summer, the ideal angle is around 15 degrees. Start by entering your location in the search box. The. While the traditional tilt of about 30-33° is designed to maximize solar irradiation during the middle hours of the day, vertical installation (90°) offers unique advantages, especially in settings where space is limited and a more distributed and balanced energy production is desired throughout. When designing a PV system that is tilted or ground mounted, determining the appropriate spacing between each row can be troublesome or a downright migraine in the making.
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