Additional Environmental Information

The Transport and Works Act 1992

The Transport and Works (Applications and Objections Procedure) (England and Wales) Rules 2006

 The Morlais Demonstration Zone Order



On 16 September 2019 Menter Mon Morlais Limited of Llangefni Town Hall, Llangefni, Anglesey, LL77 7LR applied to the Welsh Government under section 6 of the Transport and Works Act 1992 for the above-mentioned order under section 3 of that Act.

The draft order makes provision for the construction and operation of tidal energy devices and associated infrastructure within an offshore demonstration zone known as the Morlais Demonstration Zone (“MDZ”) which covers an area of 35 square kilometres of the Irish Sea to the west of Holy Island, Anglesey.

The Order would also authorise export cables on the seabed within an export cable corridor covering an area of 4.75 square kilometres between the MDZ and a landfall site on the western coast of Holy Island known as Abraham’s Bosom.

In addition to the offshore works, the Order would also authorise onshore works between a proposed electricity substation at the landfall site and a site to the east of Holyhead adjacent to the A55 to provide a grid connection with the existing electricity network infrastructure.

The Order would confer power to transfer the benefit of the Order to another person and powers to execute street works, to temporarily stop up streets, to create or improve existing means of access, to enter into agreements with street authorities, to use private roads for the construction of the works, to discharge water into watercourses and public sewers or drains, to carry out protective works to buildings and to survey and investigate land.

The Order also provides a saving for the Marine and Coastal Access Act 2009, a power to dredge, provision against danger to navigation and in relation to the abatement of tidal works abandoned or destroyed, for the survey of, and lights on, tidal works and relating to safety of navigation. A separate application for a marine licence in respect of the offshore works has been made to Natural Resources Wales.

In connection with the onshore works, the Order seeks to confer powers for the compulsory acquisition and use of land for the purposes of those works and for ancillary purposes. The Order would confer powers to acquire easements or other rights in land and impose restrictive covenants, to acquire the subsoil only of land, to appropriate the subsoil or airspace of streets, to use land temporarily for the purposes of constructing and maintaining the works, provision for the incorporation of the mineral code, to disregard certain interests and improvements in land, to set-off for any enhancement in the value of retained land in assessing compensation and to override, extinguish or suspend easements and other rights The Order also provides for the application and modification of compulsory purchase enactments and a time limit of five years for the exercise of the powers of compulsory acquisition conferred under the Order.

The Order provides for the disapplication of section 36 of the Electricity Act 1989 and section 23 of the Land Drainage Act 1991, a defence relating to proceedings in respect of statutory nuisance, power to lop trees and remove hedgerows, for overriding the application of landlord and tenant law, would make it an offence to obstruct the construction of the works, provides for safety zones for navigation, trawling and anchoring, provisions for the protection of statutory undertakers and other interests, savings for Trinity House and the Crown, the disapplication of certain provisions of the Neighbourhood Planning Act 2017 and includes ancillary provisions.

The application is subject to an environmental impact assessment and further information is available in relation to the environmental statement which was provided with the application. Please see a list of what further information is available in Schedule 1 to this notice.

A copy of that information may be inspected free of charge at location and during the times set out in the Schedule 2 to this notice until 13th of May 2020.

Copies of that information may be obtained from Menter Môn Morlais Limited, Llangefni Town Hall, Llangefni, Anglesey, LL77 7LR or by emailing or telephoning 01248 725 722 for 10p per sheet of paper.

A copy of that information may also be viewed at

Representations about the further information should be sent to the Welsh Planning Inspectorate either via email or through the post:


Post: The Planning Inspectorate Crown Buildings Cathays Park Cardiff CF10 3N

Any such representations MUST (i) be received by the Welsh Ministers on or before 13th of May 2020, (ii) be made in writing (whether sent by post or e-mail), (iii) state the grounds of the representation, (iv) indicate who is making the objection or other representation, and (v) give an address to which correspondence relating to the objection or other representation may be sent. (If you are sending your objection or other representation by e-mail, please provide a postal address.)

The Welsh Ministers may publish copies of the objections and other representations on their website, excluding any personal information contained in them, and will copy them to the applicant for the Order including personal details.

Eversheds Sutherland (International) LLP

Solicitors on behalf of Menter Mon Morlais Limited

Date:1st of April 2020



01 Additional Environmental Information MOR/RHDHV/DOC/0107
02 ES Chapter 4 Project Description MOR/RHDHV/DOC/0004
03 ES Volume II Chapter 4 Figures MOR/RHDHV/DOC/0108
04 Welsh National Marine Plan Comparison Note MOR/RHDHV/DOC/0128
05 Traffic Clarification Note MOR/RHDHV/DOC/0109
06 HR Wallingford Coastal processes modelling report MOR/HRW/DOC/0001
07 Metocean and Physical Processes Numerical Modelling Supplementary Note MOR/RHDHV/DOC/0112
08 Metocean and Physical Processes ES Supplementary Note Note MOR/RHDHV/DOC/0111
09 Water Framework Directive Compliance Assessment MOR/RHDHV/DOC/0126a
10 ES Volume II WFD Figures MOR/RHDHV/DOC/0126b
11 Benthic and Intertidal Ecology Issues Responses to NRW comments MOR/RHDHV/DOC/0113
12 Fish Ecology Issues Responses to NRW comments MOR/RHDHV/DOC/0114
13 Marine Ornithology Collision Risk Modelling MOR/RHDHV/DOC/0115
14 Outline Environmental Mitigation and Monitoring Plan MOR/AEC/DOC/0001
15 Onshore Ornithology Response to Comments on Chough MOR/RHDHV/DOC/0120
16 Underwater Noise Modelling Report MOR/RHDHV/DOC/0116
17 Marine Mammals Underwater Noise Modelling Note MOR/RHDHV/DOC/0117
18 Marine Mammals Addition Collision Risk Modelling MOR/RHDHV/DOC/0118
19 Marine Mammals Monitoring and Mitigation Options MOR/RHDHV/DOC/0119.
20 Navigation and Shipping Responses MOR/RHDHV/DOC/0124
21 Navigation Risk Assessment – Morlais Tidal Demonstration 18UK1479-RN-MM-NRA-20_03
22 Supplementary Tourism and Recreation Assessment MOR/BAU/DOC/0001
23 Supplementary Socio-economics Assessment MOR/BAU/DOC/0002
24 Outline Skills and Training Action Plan MOR/MM/DOC/0008
25 Outline Tourism and Recreation Monitoring Strategy MOR/MM/DOC/0009
26 Desk-Based Assessment – Terrestrial Archaeology and Walkover Survey

(1) Text

(2) Figures

(3) Plates



27 Onshore Archaeology Settings Assessment for Offshore Infrastructure MOR/RHDHV/DOC/0125
28 Onshore Archaeology Supplementary Note MOR/RHDHV/DOC/0122
29 Terrestrial Ecology Assessment Update MOR/RHDHV/DOC/0110
30 Seascape Landscape and Visual Impact Assessment response MOR/SLR/DOC/0001
31 Outline Landscape Management Plan MOR/SLR/DOC/0002




Menter Môn, Llangefni Town Hall, Llangefni, Anglesey, LL77 7LR Monday – Friday between 10:00am 16:00pm

Please make appointment at least 24 hours prior through emailing or phoning 01248 725722


**Whilst the documents are available on deposit, we would recommend that rather than attending this location anyone wishing to review the submitted documents either review them on the website or contact Menter Môn to make alternative arrangements.