JA Solar’s DeepBlue 4.0 Pro Achieves 10th “Top Performer” Designation in PVEL 2025 Scorecard

JA Solar, a global leader in the photovoltaic (PV) industry, again is recognized as a “Top Performer” in the 2025 PV Module Reliability Scorecard released by PV Evolution Labs (PVEL), a globally respected independent testing laboratory. The company’s DeepBlue 4.0 Pro module (model JAM66D45/LB) delivered outstanding results across multiple reliability test sequences, earning JA Solar this distinction for the tenthtime.

Thisdesignation recognizes JA Solar’s long-standing commitment to product quality and performance. PVEL’s Reliability Scorecard, based on its Product Qualification Program (PQP), is widely regarded as an industry benchmark. The program subjects PV modules to rigorous laboratory and field tests that simulate long-term operating conditions, thus helping buyers evaluate real-world durability and reliability.

In this year’s evaluation, the DeepBlue 4.0 Pro achieved strong results in a series of demanding tests, including thermal cycling, damp heat, mechanical stress, potential induced degradation, and light- and temperature-induced degradation. The results validate the module’s ability to maintain high performance and structural integrity under a variety of environmental stressors.

“The fact that we were named a Top Performer by PVEL for the tenthtime is both an honor and a responsibility,” said Aiqing Yang, Executive President of JA Solar. “It reflects our unwavering focus on quality and our drive to deliver reliable, high-efficiency products to global partners operating in increasingly diverse and challenging environments.”

The DeepBlue 4.0 Pro isalready widely adopted in global markets, earning praise for its energy yield, long-term reliability, and adaptability. Building on its success, JA Solar introduced application-specific solutions tailored to harsh climates—environments ranging from deserts to offshore to alpine to typhoon-prone regions—as well as specialized use cases such as anti-glare, lightweight, and fire-resistant modules.

With a decade of recognition from PVEL and a strong track record across global benchmarks, JA Solar is positioned to shape the next phase of the PV industry. As the energy transition accelerates, the company is focused on advancing product reliability, expanding scenario-based solutions, and supporting the evolving needs of utility, commercial, and residential markets worldwide.