Morlais Demonstration Zone

Morlais Demonstration Zone tidal stream overview.

Morlais is a consented tidal-stream energy zone off Holy Island, Anglesey, designed to host several developers’ technologies within shared infrastructure. The scheme provides seabed access, consents and an electricity export connection for phased deployment. Its onshore substation has been completed, with the first tidal devices expected in 2027.In ConstructionUnited Kingdom

At a Glance

Consented capacity

240 MW

Owner

Menter Môn Morlais Limited

Operator

Data coming soon

Country

United Kingdom

Location

53.304°, -4.719°

Website

Official project page

Ownership

1 record

Share	Organisation	Role	Details	Period
Unknown		Owner Operator	Menter Môn Morlais Limited owns and manages the shared tidal-energy zone and its enabling infrastructure.	Current / not dated

Organisations

11 records

Organisations recorded as working on this asset or its project, and their role.

Organisation	Role	Details
	First-phase project contractorOther	Ateb is named among the contractors involved in the first phase of the Morlais project.
	First-phase project contractorOther	Cadarn Consulting is named among the contractors involved in the first phase of the Morlais project.
	Other	Not set
	First-phase project contractorOther	Eversheds Sutherland is named among the contractors involved in the first phase of the Morlais project.
	Infrastructure construction contractorEpc Balance Of Plant	Jones Bros delivered the first-phase Morlais substation, handed over in February 2024, and was appointed to the Cydnerth grid-strengthening works in 2025.
	Social-enterprise project sponsorDevelopment And Sponsor Context	Menter Môn developed the community-led Morlais scheme through its Morlais subsidiary.
	Operator Or Applicant	Not set
	Tidal zone owner and managerOwner Operator	Menter Môn Morlais owns and manages the shared zone, consents and enabling infrastructure for phased tidal-energy deployments.
	First-phase project contractorOther	OBR Construction is named among the contractors involved in the first phase of the Morlais project.
	First-phase project contractorOther	Stockton Drilling is named among the contractors involved in the first phase of the Morlais project.
	Seabed lease provider and programme supporterLease And Seabed	Menter Môn secured the Crown Estate lease for the 35 km² West Anglesey Demonstration Zone in 2014. The Crown Estate also supports Morlais and its associated projects.

Supplier registration

Project supplier register

How suppliers get onto this project's radar: its standing register, supplier portal or contact route.

Businesses can join the Morlais supplier network through the project’s published registration invitation. The network supports engagement with the shared scheme and its tidal-energy developers.

Morlais-specific supplier network for the shared tidal-energy scheme and its developer community.

Supply chain pageRegister interestwe could not open thisTender portalLinkedIn

SourceChecked 29 Oct 2026

Capacity history

Recorded project capacity figures. Future-dated changes are shown but are not used as current capacity.

Effective	Capacity type	Capacity	Source
28 Apr 2026	Consented capacity	240 MW	Menter Môn Morlais

Wind [m/s]

Wave [m]