Safety measures
During construction, we will take all precautions to keep everyone safe. There will be barriers around our temporary work areas and appropriate security in place. If we encounter any unforeseen materials, we will remove and safely dispose of them.
Once the work is complete, we will return the land to its original condition. We will replant or replace hedges or fences after construction where possible.
The UK government regulates all carbon capture and storage (CCS) projects, its infrastructure and its operation. The safety of the Proposed Development will be regulated by the Health and Safety Executive (HSE) and the North Sea Transition Authority (NSTA). Please view the Safety webpage for more information.
Traffic and access
Temporary access tracks via the existing local road network will be established to provide access for construction vehicles to minimise disruption to community and local environmental impacts. Consistent signage (in both English and Welsh) at temporary access locations will be installed during construction in order to provide relevant warnings and information to the public. Temporary diversions will be established across the dunes during the construction period for pedestrian use. As part of the construction works, a temporary fence will safeguard both the public and workforce and provide security of the works. This temporary fencing will be removed upon completion of the works.
Traffic and access management including an Outline Construction Traffic Management Plan (OCTMP) has been consented under the PoA Terminal and Foreshore Works Consented Development (“the Consented Development”) [FUL/000246/23] and does not form part of the new Town and Country Planning Act (TCPA) 1990 (as amended) application for the Proposed Development. You can view the OCTMP here.
Construction compound
A temporary construction compound has been consented under FUL/000246/23 and does not form part of the new TCPA application. It will be in the Talacre Beach parking area and be used to provide access to the inter-tidal works area. You can find out more about the construction compound in the OCTMP here.
Construction working hours
Throughout construction, core working hours are likely to be from 8am to 6pm on weekdays (excluding bank holidays) and from 8am to 1pm on Saturdays. To maximise productivity within core working hours, the construction contractor will require a period of up to one hour before and up to one hour after core working hours for the start-up and close-down of activities.
Some locations where trenchless crossings (i.e. HDD) are being carried out will require working 24 hours a day to allow the work to be completed as safely and quickly as possible, but this will be for short periods of time.
Construction timeline
The works from the PoA Terminal to and including the HDD Entry Pit are consented under FUL/000246/23 and do not form part of the new TCPA application. We anticipate the work for the Consented Development to take just over two years (27 months).
For the Proposed Development, the inter-tidal works are expected to take up to eight weeks. This will be separated into two different periods: one for the horizontal directional drilling (HDD) works at Gronant dunes, and another for the cable pulls. The indicative construction programme is:
| Activity | Start | Duration |
| HDD conduit construction and cable installation | Between February and April 2026 | Four weeks |
| Cable shore pull and simultaneous lay and burial by the cable laying vessel (CLV) | July 2026 | Four weeks |
Minimising disruption
Our construction programme focuses on minimising the impact on the environment, wildlife breeding periods, local community and port movements. For instance, we are aware that the Little Tern breeding season is between mid-April to mid-July. Therefore, the construction programme has been planned accordingly to avoid the breeding season as far as is reasonably practicable by:
- carrying out the HDD Conduit, and Exit Pit works during February and March 2026 before the breeding seasons starts; and
- executing the installation activities of the electrical cable on Talacre Beach in July 2026 close to the migratory departure of the Little Terns.
Furthermore, we will work with Port of Mostyn to ensure that the CLV - a specialised ship used to install underwater cables - will be positioned to allow safe and unobstructed passage and manoeuvre of daily vessel movements, at agreed timings, into and out of the Port. This will include advance planning with Port of Mostyn to avoid any major conflict between operational periods, continuous communication between our cable-laying team and the Port of Mostyn’s vessel traffic control to monitor and adjust to real-time movements as necessary. Daily reports to Port of Mostyn will highlight schedule progress and current activities and restrictions.
The construction and support vehicles will use existing roads or tracks to get to where we need to be. Instead of taking lots of heavy cables over the beach, which might damage the environment, some cables will be brought ashore from the sea. Where necessary, we will use temporary matting to help vehicles move across the sand.
The construction process
Using cutting-edge technology, we will lay new electric and fibre-optic cables alongside the existing pipeline between the PoA Terminal and the Mean Low Water Spring (MLWS) line.
Trenchless techniques are used to lay cables under rivers, roads, and areas of conservation like sand dunes, without digging a trench through them. Trenchless techniques bury the cable at a greater depth than the open-cut technique and will depend on the nature of the feature being crossed. We will use a method of trenchless technique called HDD to lay some of the cables. HDD allows us to lay cables underground without disturbing the land above. For HDD, we only need to dig small exit and entry pits on either side of the area.
A drilling machine will be placed into the entry pit and will drill a small tunnel across to the exit pit. The cables will be brought onto the beach by boat before being put into the pit and pulled through the tunnel. The holes would then be made safe. As we will be drilling underneath the sand dunes, instead of digging through them, it will minimise disruption and environmental impact to the area.
The target depth of burial for the cables is 2.5m from the HDD Exit Pit and across Talacre Beach to the MLWS line. There are no other above or below ground structures proposed as a part of the Proposed Development.
You can provide your feedback on the Proposed Development or contact us with any enquiries by:
- Sending an email to: hello@hynethub.co.uk
- Writing a letter to: Freepost LBCCS. You don’t need a stamp.