Central Issuer for I-RECs

We're not just a certification company; driven by a dedication and commitment to environmental responsibility, we take immense pride in certifying renewable energy production.



Central Issuer for C-Capsule

We are the Central Issuer for C-Capsule, which is a tradeable instrument for durable Carbon Dioxide Removal (CDR) and certifies carbon that has been durably removed from the atmospheric cycle.

Issuer for Fly-i

We are the Issuer for Fly-i, which certifies the supply of aviation fuel from a range of sources including renewable feedstocks, such as biomass, waste oils, and non-food crops.

Latest news

Important announcements

  • Revised Fee Structure for I-RECs

    Please note that the Fee Structure for I-RECs, effective from 1 August 2024, is now available. To view the details, visit our Documents Page.

  • Residual Mix Deadline Notice

    The Residual Mix Deadline for submitting 1 July 2023 - 31 December 2023 eligible production is 30 September 2024. The Residual Mix Deadline for submitting 1 January 2024 to 30 June 2024 eligible production is 31 May 2025.

    Production Month Year X Issuance Deadline Year X+1
    January - June31st May
    July - December30th September

    For further information regarding the consultation, please click the "Learn more" link below.

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Our emphasis is on creating a sustainable society, we are dedicated to being a responsive professional partner in assisting organisations to meet their environmental goals - and are committed to being flexible and adaptable to meeting customer needs.


Our team was part of the advisory on the formation of the European RECS programme, EU Guarantee of Origin, UK Renewables Obligation, and The International Attribute Tracking Standard.

Superior Customer Experience

GCC values every customer equally, be it an international power company or a micro-generator. Our goal is to provide excellent service to every customer.

Solution Focused

GCC specialises in new markets and those seeking international recognition. We understand how to provide confidence to national authorities and international consumers.

Cost Effective

Our operating model has been designed to foster efficient working, economically.


Annual Review 2022
Ev. Documents