In recent years, a concerning trend has emerged in the photovoltaic industry: the quality of many new PV modules is declining. According to a study by the Fraunhofer Institute for Solar Energy Systems (ISE), PV modules have often delivered less performance than stated by the manufacturer since 2017. In 2023, the average underperformance was approximately 1.3% compared to the manufacturer’s specifications.Fraunhofer ISE+3Solarbranche+3TÜV Rheinland+3Fraunhofer ISE
Another factor is the increasing price pressure on the global market. China, which produces over 80% of the world’s PV modules, has significantly expanded its production capacity. This has led to an oversupply and falling prices, forcing manufacturers to cut costs—often at the expense of quality.schulz-pv.de
These developments have direct consequences for investors and operators of PV systems. Therefore, a quality check before installing new modules is essential to secure long-term investments and maximize return on investment (ROI).
A comprehensive quality check includes, among other things:
- Performance Measurement: Verifying whether the modules deliver the promised power output.
- Visual Inspection: Detection of visible defects or damages.
- Electroluminescence Tests: Detection of microcracks or cell defects.
- Insulation Testing: Ensuring the electrical safety of the modules.pwhdesign.de
Such tests enable early detection and resolution of potential issues before they lead to major failures or performance losses.
In an era where the quality of new PV modules can no longer be taken for granted, a professional quality check provides the essential security for your investment. It not only protects against financial losses but also contributes to the longevity and efficiency of your PV system.
For further information and support with quality testing of your PV modules, we are happy to assist you.