eex

    Built for compliance. Designed for performance. Trusted by registries across Europe.

    Compatibility

    Standard compliance off the shelf

    G-REX is and will remain fully compliant with European level regulation, standards, and industry agreements. These include:

    • Directive (EU) 2018/2001 (RED II),
    • Standard CEN-EN 16325
    • European Energy Certificate System (EECS).

    All Guarantee of Origin schemes in Europe must comply with RED II and CEN-EN 16325. G-REX is designed to meet these requirements out of the box and evolve alongside future regulatory updates. 

    EECS, ERGaR and CertifHy

    In addition to regulatory compliance, G-REX supports key voluntary industry agreements, including:

    • AIB – developed EECS, the leading framework for energy certificates
    • ERGaR – European registry for renewable gas certificates
    • CertifHy – for hydrogen certification

    G-REX supports all major energy carriers: electricity, gas, hydrogen, and heating and cooling.

    Looking for integration with G-REX?

    Contact us to explore how G-REX can meet your registry needs.

    Book here a G-rex demo

    Technology

    API First

    All G-REX functionality is available through open, well-documented APIs. The business logic is separated from the user interface, offering full flexibility to integrate with external systems or build custom frontends. Every user has API access by default.

    Serverless cloud native

    G-REX is fully cloud-native and runs serverless on Microsoft Azure. Infrastructure and configurations are deployed automatically using Infrastructure-as-Code (IaC). This enables fast deployments, near-unlimited scalability, and low maintenance overhead.

    Single-page application

    The G-REX application is built as a single-page application (SPA), providing a fast and responsive user experience. User preferences such as visible columns and sorting are saved locally for a seamless experience across sessions. The application is compatible with all modern browsers and built using Angular and Kendo UI.

    Resilience

    G-REX services can be hosted across multiple data centers, with geo-redundancy and automated backups. When hosted in the EU, all data remains within EU borders, and access is restricted accordingly. High availability is maintained even in rare failure scenarios.

    Security and Compliance

    Multi-factor authentication

    G-REX uses Azure Active Directory (AAD) for secure authentication, including multi-factor authentication (MFA). Tokens are issued for access across all user interfaces and API endpoints. MFA can be required both at login and for sensitive actions.

    Single sign-on

    With Azure Active Directory (AAD) support, G-REX enables seamless access through existing corporate credentials. Users signed in to their device or Office 365 environment can access G-REX without additional login prompts. Other third-party identity providers can also be integrated.

    User lifecycle management

    G-REX aligns with your organisation’s security policies via Azure Active Directory (AAD) and AD Federation. User onboarding, access changes, and removals follow existing internal processes automatically.

    OWASP ASVS level 2

    G-REX complies with the OWASP Application Security Verification Standard (ASVS) Level 2. Security is tested continuously and development integrates industry best practices.

    ISO 27001

    All development partners and infrastructure providers for G-REX are ISO 27001 certified. Certified continuity and disaster recovery processes ensure system reliability even in worst-case scenarios.

    GDPR

    G-REX is fully compliant with the EU General Data Protection Regulation (GDPR). Access to personal data is strictly limited, and no data is transferred outside the EU unless explicitly agreed. The platform supports full user rights, including the right to be forgotten and informed.

    Contact

    Aude Filippi

    Director Business Development Gas & Sustainability Markets

    +33 173 03 76 87 aude.filippi@eex.com

    Markus Klimscheffskij

    CEO Grexel

    +358 9 4241 3161 markus.klimscheffskij@grexel.com

    Support Contact

    Submit support request via support portal.

     

    to the support portal