30 000+ daily tests for quality and security

G-REX is tested over 30 000 times every day to ensure great and secure user experience.

What will change with FaStGO and RED II?

What should Issuing Bodies of Guarantees of Origin be prepared for?

Grexel shapes the future of GOs via FaStGO #2

How is the future of IT infrastructure for Guarantees of Origin?

Grexel shapes the future of GOs via FaStGO #1

What is FaStGO and why will we write about it?

Enabling green economy through accessibility

Joel Kauppi explains, why accessibility is the starting point of our system design.

Guarantees of origin increasingly interest the private sector

Laura Malinen and Antti Kuronen look at the future of European Guarantees of Origin from the perspective of private sector.

The game changer

Shanmugam Chinnappa explains what's under the hood of our next generation registry.

Can I Green X with Certificate Y? – Additionality

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This post is about additionality. It gets a bit theoretical in the beginning, but persistent readers are rewarded at the end with a simple conceptual model to analyse additionality in the realm of energy certificates.

Can I Green X with Certificate Y? – Regulation

This post discusses the importance of understanding surrounding regulation. This part is a bit longer, more technical and, sorry about it, probably also more burdensome to read than the previous ones.
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Can I Green X with Certificate Y? – Uniqueness

This series of blog posts discusses the various aspects of using tradable energy attribute certificates to green the energy usage and reduce the carbon footprint. This post discusses the concept and importance of uniqueness.