Department of Energy (DOE), the best direction and angle for solar panels is south-facing with a 15 to 40° tilt. The sun's rays strike your panels at different angles throughout the day and year.
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So far based on Solar PV Analysis of 97 locations in Israel, we've discovered that the ideal angle to tilt solar PV panels in Israel varies between 28° from the horizontal plane facing South in Ḥurfeish and 25° from the horizontal plane facing South in Eilat.
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In general, solar panels should be installed so the sunlight hits them at as close to a perpendicular 90-degree angle for as long as possible during the day.
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With angle iron being the backbone of photovoltaic mounting systems, getting this right isn't just important - it's mission-critical for your project's ROI and safety.
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