GranularCert OS

An Open-Source Demonstration Platform for Granular Certificates

Sign up to the launch event on the 16th of April to learn more about the project and learn how to get involved.

About the project

The Granular Certificate Registry is an innovative open-source solution designed to accelerate the adoption of granular energy certification in renewable energy markets. This demonstration platform showcases a fully functional implementation of the EnergyTag Standard v2, offering a flexible framework for registries and third-party platforms to support the transition to hourly energy tracking.

More precise matching of renewable generation with consumption

Improved information for consumers and market participants

Better incentives for storage and demand flexibility

Enhanced grid integration of variable renewable energy

Our motivation

Setting standards

The rapid adoption of granular certification requires timely technical standards to avoid costly redesigns later. Our platform helps establish these standards through practical implementation.

Making standards tangible

By providing a concrete implementation, we help refine the conceptual elements of the EnergyTag Standard and make them accessible to practitioners.

Supporting innovation

The complexity of transitioning to granular certification can slow market progress. Our platform eases this transition by providing ready-to-use tools and frameworks.

“The energy transition requires more than just adding renewables to the grid—it demands accurate tracking and verification of when and where clean energy is produced and consumed, so that end consumers can have confidence in environmental claims. Granular Cert OS provides registries with a robust and open-source foundation to support this shift, making 24/7 carbon-free energy a reality"

Clement Attwood

Managing Director

View the full press release

Joint Press Release March 2025

Get Involved

The Granular Certificate Registry is an open-source project designed to benefit the entire renewable energy ecosystem. We welcome contributions, feedback, and collaboration.

GitHub Repository Demo Instance Contact Us