ERM appointed to provide environmental and consenting support for Erebus by Blue Gem Wind

ERM appointed to provide environmental and consenting support for Erebus by Blue Gem Wind

06 November 2026

ERM, the world's largest sustainability consultancy, has been appointed to deliver environmental and consenting support for Erebus by Blue Gem Wind.

Erebus by Blue Gem Wind is developing the 100 MW floating offshore wind Test and Demostration (T&D) project in the Celtic Sea, off the coast of Wales. As one of the UK's most advanced floating offshore wind developments, the project is designed to demonstrate commercial-scale floating wind technology while supporting supply chain development, job creation and investment across Wales and the wider Celtic Sea region.

ERM's appointment builds on its track record of supporting Erebus by Blue Gem Wind since 2019. Previously, ERM supported Blue Gem Wind with the consenting strategy, stakeholder engagement and marine survey management, and served as the offshore Environmental Impact Assessment (EIA) and Habitats Regulations Assessment (HRA) lead during the consenting phase between 2021 and 2023.

Sean Evans, Consenting Manager, Erebus by Blue Gem Wind said: "Our relationship with ERM has been an important part of Erebus's development, built on a strong partnership and a shared commitment to advancing floating offshore wind in the Celtic Sea. We value the knowledge, experience and continuity ERM brings to the project and look forward to continuing to work together as Erebus moves into its next phase of development."

Jonny Lewis, Partner at ERM said "Erebus by Blue Gem Wind represents an important step in the development of the Celtic Sea floating offshore wind sector. Beyond the delivery of renewable energy, the project is helping build the experience, supply chains and regional capability needed to support future commercial-scale deployment. Having worked with Blue Gem Wind on the project since 2019, we look forward to continuing to provide the environmental and consenting expertise needed to support the latest stage of its development."

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