Site Works

We’re currently developing detailed proposals for Wylfa Newydd, informed by a variety research and survey work undertaken on and around the proposed Wylfa Newydd site.


Surveys are an important and essential part of the planning process and provide detailed and valuable information that will help us to progress our development plans. Some of this work takes months, or even years, to complete but is helping to provide us with a comprehensive understanding of the area local to our site and of Anglesey as a whole.

From traffic and transport, heritage and tourism to environment and ecology, and archaeological and ground investigations, this survey work involves working closely with a variety of specialists and local companies.

Detailed offshore ground investigation works (GI Works)

An important part of planning for Wylfa Newydd is the research that helps us understand the geological conditions of our sites. This includes our power station site, locations across Anglesey and also offshore.

We’re working alongside specialists Fugro Geoservices Ltd, and Atkins’ geotechnical team, to carry out offshore research throughout July and August. The team will be taking samples from the seabed and coastline, adjacent to the existing Magnox station, as part of the studies.

Two barges, which are floating drilling platforms, will be positioned in the near shore area of the sea at Porth-y-Pistyll, which is where we’re proposing to build our cooling water intake structure, a Marine Offloading Facility (or MOLF) and breakwater. This work is another key technical step in Wylfa Newydd’s project development and our MOLF will allow us to reduce the volume of road haulage by bringing in via sea many of the bulk materials and large components needed during construction.

While the work will be taking place, we’ll be keeping a distance of more than 800 metres from the Cemlyn Bay nature reserve at all times.


Archaeology Surveys

Anglesey has a rich archaeological history and is home to world-renowned examples of Neolithic and Bronze Age monuments and artefacts. We recognise the importance of this cultural heritage locally, regionally and nationally, and are working to create a detailed picture of the Wylfa Newydd site from a historical context before we finalise our proposals for development..

To do this, we’ve recently undertaken the first step of physical archaeological surveys within the proposed Wylfa Newydd site. Covering approximately 150 hectares, it’s one of the largest projects of its kind in the UK.

Working closely with archaeological specialists Wessex Archaeology, Gwynedd Archaeological Trust, and a number of local contractors, the team used a variety of lightweight excavation and analysis equipment to examine key areas of the site and record artefacts of interest.

Now this evaluation stage is mostly complete, we’re preparing to recover and examine key artefacts in more detail and will work closely with Isle of Anglesey County Council and Gwynedd Archaeological Planning Services to preserve and potentially display any artefacts of interest. The data gathered will also be made publicly available via formal publications and through Horizon’s community news.

A further phase of archaeological work to fully investigate those areas of interest, which were identified during the evaluation stage, will commence after we have analysed and understood the outputs from evaluation and discussed them with Isle of Anglesey County Council and Gwynedd Archaeological Planning Services.

 

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