Providing High-Quality Solar Simulation Worldwide

Spire Solar is a leading manufacturer of solar simulators for measuring the performance of PV solar modules. Our mission is to play a critical role in developing a global solar industry which can compete with the full range of energy sources in today’s demanding energy environment.

We do this by providing world-class flash simulators with renowned capabilities regarding repeatability, reproducibility, spectrum, uniformity, and stability to PV solar module manufacturers, as well as research and test laboratories.

Single Long Pulse

Spire’s solar simulators use proven Single Long Pulse (SLP) flash technology to accurately measure the performance of a PV module. This enables longer sweep times while preserving the reliability and ease of use of a traditional flash tester.

Our technology is preferred to achieve a robust and straightforward measurement for new technologies (PERC, HJT). No black box and result tuning, the user is in control. Accurate, no physical effects of manipulated voltage ramping as compared with a short 10ms flash.

Learn more about sun simulation...

Eternal Sun Group

We are proud to announce the acquisition of Spire’s sun simulator business by the Eternal Sun Group. This acquisition creates a solar testing powerhouse delivering solutions to R&D and manufacturing customers in the solar industry worldwide.

The two companies address different markets, and together are able to offer quality control, insight and confidence across the entire supply chain.

Click here to go to Eternal Sun Group