Cost-Effective Electroluminescence Imaging for Solar PV Inspection Using a Modified Consumer Camera

As the adoption of renewable energy surges, the global proliferation of solar photovoltaic (PV) systems intensifies. However, PV panels remain vulnerable to defects during transportation, installation, and harsh weather exposures, compromising their longevity and efficiency. Traditional visual and I-V curve tests, frequently employed for PV system maintenance, often fall short due to their restricted defective detection capacity, and extended inspection durations. While infrared (IR) and electroluminescence (EL) imaging methods excel in efficiency, their accompanying equipment is prohibitively expensive. Addressing this gap, the paper introduces a novel, cost-effective EL imaging solution using a modified consumer camera. The findings highlight the efficacy of EL imaging in detecting an array of solar cell defects, underscored by the affordability of the setup. The accessible and cost-friendly nature of the EL methodology offers a promising inspection alternative for small to medium-sized PV systems, marking a significant stride in PV inspection innovations.