Avalon ST Acquires PASAN SA, Uniting Two Leaders in Photovoltaic Metrology
Neuchâtel, Switzerland – June 10, 2025
Avalon ST, the leading innovator in LED-based solar simulation and photovoltaic (PV) metrology, has announced the acquisition of PASAN SA, the globally recognized industry icon in xenon-based solar simulators and precision measurement systems. This strategic acquisition was concluded at the beginning of the year and combines two innovative forces with complementary technologies, reinforcing their position as global leaders in PV testing and simulation.
A Legacy of Excellence
Founded in 1983 by Pierre-René Beljean, PASAN SA has set the global standard in PV module and cell testing equipment for over four decades. Renowned for its precise xenon-based sun simulators, PASAN’s products are trusted by leading research institutes and solar manufacturers worldwide. Their unwavering commitment to accuracy and innovation continues to shape industry benchmarks.
Avalon ST, established in 2018 by Damien Etienne and Gavin Dong – former Meyer Burger, PASAN and TÜV Rheinland employees – has rapidly risen as the leader in LED-based solar simulation technology. Avalon ST’s cutting-edge products, notably the Nexun series, provide exceptional accuracy and reliability for advanced PV technologies, including HJT, PERC, and perovskite solar cells.
Complementary Technologies, Shared Vision
This acquisition brings together PASAN’s proven expertise in xenon-based technology and Avalon ST’s innovative advancements in LED technology, forming the industry's most comprehensive solution for solar panel and cell measurement. The integration of these complementary strengths will accelerate innovation, enhance product offerings, and expand the combined companies' global footprint.
Commitment to Continuity and Growth
PASAN SA and Avalon ST will integrate operations and workforce in Neuchâtel, Switzerland, and Shanghai. This acquisition marks not merely a business expansion, but a powerful reunion of experts dedicated to shaping the future of photovoltaic technology and supporting customers worldwide seeking best-in-class solar simulation systems.
A Full-Circle Moment
Reflecting on the acquisition, Damien Etienne, Co-Founder and CTO of Avalon ST, shared, “Bringing together the PASAN and Avalon ST family is profoundly meaningful. It’s not just a strategic step forward; it’s a full-circle journey for many of us. I started at PASAN as a student back in 2007, and to return now is an extraordinary journey.”
Aurélien Ubbiali, Head of Sales & Service at PASAN SA, added, “Joining Avalon ST enhances our capabilities to innovate and deliver an unparalleled array of solutions and services to our customers globally. Together, we’re entering a new era of excellence in photovoltaic testing”
About Avalon ST
Avalon ST specializes in advanced LED-based solar simulation and precision metrology systems, dedicated to supporting the photovoltaic industry. Founded in 2018, Avalon ST’s products, such as the Nexun series, deliver unmatched performance, accuracy, and reliability for emerging solar technologies.
About PASAN SA
Since 1983, PASAN SA has been a global leader in xenon-based solar simulation equipment and precision measurement systems. Trusted for its precision, reliability, and innovation, PASAN’s products serve as foundational technology for PV testing laboratories and manufacturing facilities worldwide.