Energy Yields of a GPS-based Dual-Axis Solar Tracker and a Fixed Mount PV Panel Operating in Different Weather Conditions

Dang Manh Cuong, Adolfo C. Ancheta

Abstract


In this study, energy yield comparisons were conducted between a fixed mount photovoltaic system and a dual-axis solar tracking system with identical solar panels. The GPS-based solar tracking system was designed to ensure maximum energy generation from the sun’s radiation. By tracking the sun’s movement across the sky during the day, the GPS-based dual-axis solar tracking system was able to trap sunlight intensity from 6:30 a.m.to 6:30 p.m. The absorbed energy of the solar tracking system using GPS was more than that of the fixed mount panel, with the energy produced on sunny day, cloudy day and rainy day at 8,211Wh, 4,738Wh and 2,419Wh,respectively. The average energy generated from the dual axis solar tracking system was 5,390Wh/day in 2016, which was 25.2% more than the average energy generated from the fixed mount system.

Keywords


Dual axis solar tracker;GPS module; Arduino; Tilt angle sensor;RTC;Energy generated

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