Work

Evaluating the Impact of Dirt Accumulation on Photovoltaic Performance: Insights from an Experimental Plant in Brazil

Year: 2025

Type: article

Abstract: In recent decades, the use of photovoltaic (PV) modules as a source of electricity has grown significantly, driven largely by government incentives and regulatory advancements. However, merely installing these systems does not ensure optimal energy production, as maximizing solar energy capture requires additional measures. This study examines the impact of dirt accumulation on PV modules, focusing on a system installed at the School of Engineering of the Federal University of Minas Gerais (UFMG) in Belo Horizonte, Brazil. The research involved visual and thermographic analyses, as well as an evaluation of the I–V and P–V curve behavior for specific system arrays, which were cleaned during the 2024 dry season. Electrical parameters were compared between the dirty and cleaned states of the system, and the soiling ratio (SR) was calculated, ranging from 0.91 in the most affected case to 0.93 in the least affected.

Source: Energies

DOI: 10.3390/en18051214

Authors: Mylena Cruzinha da Silva, Dener A. de L. Brandao, Igor A. Pires

Institution: Universidade Federal de Minas Gerais

Language: English

Topic: Photovoltaic System Optimization Techniques

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure, Climate action

Open Access status: gold

Estimated APC paid: $3,137