The Consenting Process

Menter Môn has applied to Welsh Government under the Transport and Works Act for consent to develop and operate the Morlais demonstration zone. Menter Môn has also applied to Natural Resources Wales Marine Licensing Team for a marine licence under the Marine and Coastal Access Act 2009. Both processes run in parallel with each other.

Environmental Impact Assessment

An Environmental Impact Assessment (EIA) has been prepared, based on a scope of work agreed with National Resources Wales and Welsh Government and informed by statutory consultees. Independent experts have conducted detailed studies to understand the potential impacts of the project during construction, operation and decommissioning stages. The studies include:

  • Marine sediment and water quality.
  • Natural heritage, benthic ecology, marine mammals, fish and shellfish, ornithology, terrestrial and coastal ecology.
  • Seascape and landscape.
  • Shipping and navigation.
  • Archaeology and cultural heritage.
  • Tourism and recreation.


Consultation is an important element of this process, with statutory consultees on key technical issues as well as with the community and other interested groups.

Early engagement aimed to make sure that concerns were raised early, and where possible, addressed before the applications are submitted.

An ‘Environmental Statement’ (ES) was submitted with the applications. The ES report sets out conclusions on predicted environmental effects and proposed mitigation measures that may be required if impacts cannot be avoided.


Stage 1 – Consenting

This stage aims to ensure consent for the development Morlais project.

Stage 2 – Implementation

We hope to get a consent decision for Morlais in 2021. Following this and subject to securing the consent, the focus will then be on what is needed to implement the development. This includes looking at what needs to be done before the work starts, for example getting approval for construction methods and environmental management and monitoring.

Construction will happen in phases. It is expected that the work on land will take place between 2021 and 2022, with work offshore to start in 2023. This will enable developers of tidal energy convertors to deploy their devices in the sea and operate them to generate electricity.