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A · B · C · D · E · F · G · H · I · J · K · L · M · N · O · P · Q · R · S · T · U · V · W · X · Y · Z   entire Web this site tracking array A solar array that follows the path of the sun to maximize the solar radiation incident on the photovoltaic surface. The two most common orientations are: One-axis where the array tracks the sun east to west – used mostly with flat-plate systems and occasionally with concentrator systems. Two-axis tracking where the array points directly at the sun at all times – used primarily with PV concentrator systems. Tracking arrays use both direct and diffuse sunlight. Two-axis tracking arrays capture the maximum possible daily energy. Typically, a single-axis tracker will give 15% to 25% more power per day than a fixed array, and dual-axis tracking will add about 5% to that. The exact gains will depend somewhat on latitude and season. Related category    • SOLAR ENERGY AND POWER Also on this site: Encyclopedia of Science Transport Concepts & Designs (partner site) BACK TO TOP