Presentation Details
| What Solar Module Test Failures Reveal in 2026: Key Takeaways from Kiwa PVEL’s PV Module Reliability Scorecard Archana Sinha, Jean-Nicholas Jaubert, Todd Karin, Tristan Erion-Lorico. Kiwa PVEL, Napa, CA, USA |
Abstract
Kiwa PVEL’s annual Photovoltaic (PV) Module Reliability Scorecard showcases the latest technical advancements and limitations of commercially available solar modules. PV modules featured in the Scorecard undergo a series of extended reliability and performance tests, known as the Product Qualification Program (PQP). The cumulative data and analysis are published at scorecard.pvel.com as a resource for the industry to understand the most current testing and reliability insights. In June 2026, Kiwa PVEL will release the 12th edition of this report. The Scorecard provides details on both the achievements made in PV manufacturing, as well as concerning failures. In the 2025 Scorecard, we reported that 83% of participating manufacturers and 59% of the bill of materials (BOMs) tested experienced at least one test failure, the highest ever reported. Specific PQP tests, like mechanical stress sequence (MSS) and hail stress sequence (HSS), showed significant failure rates. This presentation will offer a deep dive into the latest findings from the 2026 Scorecard, which will follow previous editions in providing timely and impactful data to the solar industry.
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No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author.
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