About us

We make sunlight

Our mission: Moving the solar industry forward by enabling the highest degree of measurement control & certainty through high-end solar testing advice, technology and services.

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lr eternalsun ph 6565

lr eternalsun ph 6526

Our Team

Stefan Roest
CTO , Founder
Florian van Rijn van Alkemade
CEO
Erik Bentschap Knook
CCO
Priscilla Lim
HR manager
Jake Veloza
Sales Manager North and South America, Europe
Bastiaan Bink
Director QA/QC
Pepijn Veling
Sales Director
Peter Pasmans
Business Developer Perovskite Markets
Joost Herps
Marketing manager
Anand Deshpande
Software Engineer
Damian Crowley
Customer Support Manager
Ezra Neuteboom
Electrical & Automation Engineer
Nicky Eckhardt
Technician
Alexander Mulder
Principal Engineer
Johan Schalken
Industrialization Manager
Sjoerd Lincklaen Arriëns
COO
Bas Vlaar
Mechanic
Marten Kruidhof
Optical Engineer
Jos Eijgermans
Electrical & Calibration Engineer
LouAnn Oosthuizen
Procurement Manager
Mark Derks
Director Finance & Control
Naveena Venkatachalam
Logistics Assistant
Jos Theodorie
Lead Engineer E&A
Abisai Pietersz
Mechanic
Jan-Bart Zwanenburg
Sales Manager OdinSpire
Sam Schöttelndreier
Electrical Support Engineer
Ewa Dudek
Freight Coordinator & Operational Buyer
Kasper Zuidberg
Electrical & Automation Engineer
Gerhard Meyer
Manager PV Testing Center - Spire Solar Iberia
Tijmen Slikker
Data Engineer
Han Eu Jin
Field Service Engineer
Marcin Rodzik
Applications Engineer USA
Nayden Naydenov
Electrical Designer
Brunner da Costa
Mechanic
Elisa Hsu
Data reporting manager
Nicholas Spitler
Field Service Engineer USA
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Rodney Tang
Mechanic
Paul Bruinen
Mechanic
Peter Kageler
Mechanical Design Engineer
Reitse de Jong
Lead Engineer Mechanical
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Electronic Engineer
Sicco de Wilt
Mechanic
Stephanie Gitz
Office Manager
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Jeffrey Zou
Project Manager China
Tony Wang
China Operation Director
Ruud Peeters
Head of Engineering
Kaviyarasan Subramanian
Field Service Engineer Asia

Company History

Spire logo infront of a PV module
a solar simulator in a lab
Eternalsun and Spire solar cmbined logo
Engineer testing PV module on a Temperature Control Lab Flasher solar simulator
  • 1980

    • Solar Simulator bussiness unit of Spire Solar Corp. is established
  • 2011

    • Eternal Sun is founded as a spin-off from Delft University of Technology in the Netherlands
  • 2014

    • We introduce the AAA+ class steady-state solar simulator
  • 2015

    • Our AAA steady-state simulator wins the first prize of PV magazine’s technology highlight awards
  • 2016

    • Eternal Sun acquires the solar simulator division of Spire Solar Corporation.
    • Develops the Climatic Chamber Solar Simulator and wins the first prize at PV magazine awards, technology highlights 2016
  • 2017

    • Eternal Sun & Spire Solar introduce the AAA High Performance Light Soaker for advanced LeTID studies
  • 2018

    • OdinSpire, a joint venture of Eternal Sun Spire and Odin Warehousing, starts local PV testing services in Rotterdam Harbor
    • We set up a sales and service office in Shanghai to be closer to our customers
  • 2019

    • Introducing the A+A+A+ Single Long Pulse Temperature Control Lab Flasher
    • ABN AMRO Energy Transition Fund joins as new majority shareholder
    • Eternal Sun & Spire Solar change the name to Eternalsun Spire combining the broad experience and innovative environment of both brands
Today

Do you want to learn more? Contact us!

Eternalsun Spire is a leading manufacturer of solar simulators for measuring the performance of PV modules.

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