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.

Our Team

Stefan Roest
CTO , Co- Founder
Florian van Rijn van Alkemade
Erik Bentschap Knook
Priscilla Lim
HR manager
Charis Gaye Dagoc
Sales Manager MEA, SE Asia & Australia
Bastiaan Bink
Director QA/QC
Pepijn Veling
Sales Director
Evangelia Miliou
Sales Manager Europe & Americas
Alex Goscomb
Customer Service Manager
Anand Deshpande
Software Engineer
Tjibbe Nicolai
Product manager
Ezra Neuteboom
Electrical Engineer
Nicky Eckhardt
Teamleader Production
Alexander Mulder
Principal Engineer
Johan Schalken
Manufacturing Manager
Sjoerd Lincklaen Arriëns
Bas Vlaar
Marten Kruidhof
Optical Engineer
Jos Eijgermans
Electrical & Calibration Engineer
Evangelos Karountzos
Senior Software Developer
Mark Derks
Director Finance & Control
Naveena Venkatachalam
Logistics Assistant
Aadit Shroff
Mechanical Design Engineer
Abisai Pietersz
Jan-Bart Zwanenburg
Sales Manager OdinSpire
Sam Schöttelndreier
Ewa Dudek
Purchasing administrative assistant
Teun Lammers
Electrical Engineer
Gerhard Meyer
Manager PV Testing Center - Spire Solar Iberia
Tijmen Slikker
Application Engineer
Han Eu Jin
Field Service Engineer
Marcin Rodzik
Applications Engineer USA
Alessandro Imboccioli
Mechanical Engineer
Brunner da Costa
Elisa Hsu
Data reporting manager
Nicholas Spitler
Field Service Engineer USA

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

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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