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Welcome to Conference

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About us

About Groene Peper .

Curious about who makes Green Pepper possible? We work in a team of 9 professionals, each with their own expertise in education and sustainability.

Expand your network.

Meet people from different disciplines who share one thing in common: sustainability as their starting point.

F reely accessible

Participation in Groene Peper is free of charge. In May 2025 there will be another Groene Peper. On this day, the SustainaBul and Rachel Carson Award will be presented, among other activities.

For participants .

The Green Pepper physical program is a must-do for anyone focusing on sustainability within education.

Think of facility managers, IT coordinators, professors, and students. Everyone interested in shaping education and all its components now and in the future is welcome!

Why Groene Peper? .

Spicy future

The energy transition, food transition, raw materials transition, and the role of digitalization, in short, every transition towards a more sustainable world requires knowledge and expertise. And how do you create that? Exactly, by educating students in vocational education (mbo), higher education (hbo), and university (wo) well. Education is key. The importance of sustainability as a starting point for technicians, construction workers, policymakers, IT professionals, and actually for all disciplines is essential if we, as a society, want to realize those transitions.

The organizers

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Stay up to date

Spicy news .

When the event was still called NDDHO

Retrospective 2019 .

On May 25, 2019, the very last National Day for Sustainability, also known as NDDHO, took place. In 2020, NDDHO became Groene Peper. Curious about how NDDHO was? Check out the photos and the after movie of NDDHO19.