Eternal Sun broadens product range with acquisition of Spire Corp’s sun simulator business

Facebook
Twitter
LinkedIn
Reddit
Email
The deal provides Eternal Sun with a complimentary product range to its R&D and lab-based focused equipment.

Dutch specialist sun simulator equipment provider Eternal Sun has purchased the PV volume production equipment sun simulator business unit of struggling US-based Spire Corp for US$1.5 million.

The deal provides Eternal Sun with a complimentary product range to its R&D and lab-based focused equipment.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

“This deal places us well to compete in the dynamic solar manufacturing industry in Asia, and to continue to disrupt the R&D market across the globe” said, Chokri Mousaoui, CEO of Eternal Sun. “Over the last five years we have worked tirelessly to grow our company from a Dutch start-up to a global solar player. Today marks the exciting next step of this journey as we acquire a respected business line and move forward with our ambitious growth plans with renewed pace and with the confidence that we can serve our worldwide customers throughout future cycles of our industry’s growth.”

Eternal Sun noted that the Spire product business purchase was arranged through its current investor, Vermec NV, a family fund based in Belgium through a capital injection of new funds. 

Some of the Spire employees related to the simulator business are expected to remain with the unit. 

Spire had been known to provide solar simulators to a wide range of PV module manufacturers, which included its SPI-SUN SIMULATOR range.  

In an SEC financial filing, Spire Corp said the aggregate purchase price for the sun simulator business was US$1.5 million plus assumed liabilities.

7 October 2025
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 7-8 October 2025 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023 and 2024 were a sell out success and 2025 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.

Read Next

September 18, 2025
Researchers have called for enhanced international standards to detect ultraviolet-induced degradation (UVID) in PV modules after identifying “severe” levels of the problem in operational n-type panels.             
September 18, 2025
Indian PV makers have welcomed the government’s plan to add solar wafers to its ALMM List-III from June 2028.
September 17, 2025
Chinese module producer DAS Solar is planning a 5GW manufacturing facility focused on producing high-efficiency back contact cells.
Premium
September 17, 2025
PV CellTech: Martin Pochtaruk, CEO of North American solar module manufacturer Heliene, says US producers must learn to survive without tax incentives.
September 16, 2025
IB Solar is investing INR30 billion (US$340 million) in a 4GW TOPCon solar cell and module manufacturing plant in Jewar, Uttar Pradesh.
September 15, 2025
Vikram Solar has secured a contract to supply 200MW of modules to AB Energia, a domestic solar engineering, procurement, and construction (EPC) solutions provider. 

Subscribe to Newsletter

Upcoming Events

Solar Media Events
September 30, 2025
Seattle, USA
Solar Media Events
October 1, 2025
London, UK
Solar Media Events
October 2, 2025
London,UK
Solar Media Events
October 7, 2025
Manila, Philippines
Solar Media Events
October 7, 2025
San Francisco Bay Area, USA