Founded in 1999, PSE is a technology company specializing in test equipment and testing solutions for renewable energy technologies.

With more than 20 years of experience, we develop test equipment, testing methods and complete laboratory solutions for customers around the world.

Originally founded as a spin-off of the Fraunhofer Institute for Solar Energy Systems ISE, PSE has always maintained a strong connection to research and development. This background continues to shape the way we work: combining practical engineering with a deep understanding of testing and emerging technologies.

Today, our focus is on test equipment for photovoltaic modules and components. Our systems are used by research institutes, manufacturers and testing laboratories worldwide.

Since 2022, our company name has reflected this focus: PSE Instruments GmbH.

Our goal is simple: to provide reliable testing solutions that help advance renewable energy technologies and ensure quality along the way.

Engineering with a focus on quality

Reliable testing requires more than sophisticated equipment. It requires a thorough understanding of testing methods, standards and the products being tested.

Our close connection to solar research, combined with decades of practical experience, allows us to develop testing solutions for both established and emerging technologies.

Quality is an integral part of everything we do. PSE is certified according to ISO 9001:2015, and our processes are continuously reviewed and improved to meet the requirements of our customers.

Our equipment is designed to support reliable, reproducible testing and to help our customers meet demanding international quality standards.

Supporting the progress of renewable energy

Renewable technologies are developing rapidly. We contribute to this progress by providing researchers, manufacturers and testing laboratories with the tools they need to develop, validate and improve new products.

For us, quality testing is not an end in itself. It is part of building confidence in the technologies that will shape the energy systems of tomorrow.