Sungrow and TÜV Rheinland unveil world’s first quantitative long‑term reliability standard for PV inverters
Executive summary: Sungrow and TÜV Rheinland launched the world’s first quantitative long‑term reliability standard for PV inverters at Intersolar Europe 2026, including the PfG 3325 test qualification for IGBT modules. The standard provides a measurable benchmark for inverter lifespan, potentially affecting product design, procurement decisions, and future regulatory frameworks in the solar power sector.
Who is involved: Sungrow (PV inverter manufacturer), TÜV Rheinland (testing and certification body), and the Intersolar Europe 2026 exhibition organizers.
Likely next: Manufacturers may begin testing existing inverter lines against the PfG 3325 criterion, and certification bodies could adopt the standard in upcoming product qualification programs.
During Intersolar Europe 2026, Sungrow and TÜV Rheinland jointly released the world’s first quantitative long‑term reliability standards for photovoltaic (PV) inverters, introducing the PfG 3325 reliability test qualification for IGBT modules. The move aims to create a uniform benchmark for inverter durability across the solar industry. By setting measurable reliability criteria, the initiative could influence procurement specifications and future regulatory guidelines for solar power equipment.
Timeline
- — Sungrow and TÜV Rheinland Redefine Industry Rule: World's First Inverter Long-Term Reliability Corporate Standards Released (PR Newswire)
Analysis — what this means
Sectors affected
- PV inverter manufacturing
- solar energy sector
Sources
Open the full interactive case file on Beyond →
INTELLIGENCE
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