Codling Wind Park Reduces Number of Planned Wind Turbines off Wicklow Coast By One Third

4th January 2023

An EDF Renewables Offshore Wind Farm at Teeside

Ireland’s largest Phase One offshore wind project, Codling Wind Park, which will be located off the County Wicklow coast, will require almost 30% fewer wind turbines than originally proposed. Notwithstanding this significant reduction in wind turbines, the development will still generate enough renewable electricity to meet over 20% of Ireland’s 2030 offshore wind targets.

While the initial estimate for the number of turbines required had been put at a maximum of 140, the project team says advances in wind turbine technology, combined with a more detailed understanding of the wind farm site, means a maximum of 100 turbines – almost a third less – will now be required.

Codling Wind Park is a 50/50 joint venture between Fred. Olsen Seawind and EDF Renewables and will be located approximately 13 to 22 kilometres off the Co. Wicklow coast between Greystones and Wicklow Town.

It has also been confirmed, by EirGrid, that Poolbeg in Ringsend will be the location of the project’s electricity grid connection with 1,450MW – enough electricity to power up to 1.2 million Irish homes – confirmed as the maximum amount of electricity it will generate. The project had previously indicated that it hoped to generate between 900MW and 1,500MW.

An EDF Renewables Offshore Wind Farm at Blyth Photo: Chris Henderson

The consultation process will provide further details on various onshore and offshore environmental, technical and feasibility surveys being carried out as part of the project. Feedback gathered from the public as part of this consultation process will feed into the ongoing development of the project, and updated proposals will be presented at a third phase of public consultation later this year.

New details about the project were announced ahead of the second round of public consultation, which is taking place from the 11th of January to the 8th of February. The consultation will include a number of face-to-face exhibitions in Wicklow and Poolbeg, together with an online virtual exhibition and a series of dedicated information clinics.

Co-Project Director Scott Sutherland said everyone at Codling Wind Park was looking forward to the consultation and the opportunity to engage with, and hear from, local communities and other stakeholders.

“We have made significant progress since our first phase of public consultation in March 2021 and we are looking forward to updating people, in Wicklow and Poolbeg in particular, and receiving their thoughts and feedback on a range of topics, including the design of the project, the Environmental Impact Assessment we are working on, the best way we can deliver benefits to local communities through the Community Benefit Fund over the next 20 years and how best we can continue to engage with the fishing and sailing communities.”

Codling Wind Park was recently awarded a Maritime Area Consent (MAC) by the Department of the Environment, Climate and Communications. Together with the grid connection agreement it has received from EirGrid, this enables the project to participate in the first Offshore Renewable Electricity Scheme (ORESS) auction in the coming months. If successful, the project will then submit a planning application to An Bord Pleanála later this year.

Mr Sutherland said this first auction will be a seminal moment for Ireland’s offshore wind industry.

“We are excited not only to deliver one of the largest energy infrastructure investments ever seen in Ireland, but to also help the country realise its enormous potential and become a world leader in offshore wind. Our total focus now is on progressing the Codling Wind Park project through the ORESS auction and into planning. The awarding of a MAC and the confirmation of our grid location and capacity were key steps in that process.

“On its own, Codling Wind Park can help Ireland deliver over 20% of the country’s 7GW renewable energy target by 2030. This demonstrates the importance of this project – and the other Phase 1 projects – in supporting the country’s future energy security and in helping Ireland achieve its target of generating 80% of its electricity from renewable energy by 2030,” he said.

When developed, Codling Wind Park will be Ireland’s largest offshore wind farm. The project is expected to create over 1,000 jobs in the construction phase and 75 new, long-term jobs associated with its proposed Operations and Maintenance Base at Wicklow Port.

Subject to all necessary permits and consents being received, Codling Wind Park could begin construction in 2026, and is expected to take two to three years to complete.

Published in Power From the Sea, Greystones Harbour

Published in Power From the Sea

Tagged under

Codling Wind Park

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Offshore Renewable Energy FAQs

What is offshore renewable energy?

Offshore renewable energy draws on the natural energy provided by wind, wave and tide to convert it into electricity for industry and domestic consumption.

Which resource has the most advanced technology?

Offshore wind is the most advanced technology, using fixed wind turbines in coastal areas, while floating wind is a developing technology more suited to deeper water. In 2018, offshore wind provided a tiny fraction of global electricity supply, but it is set to expand strongly in the coming decades into a USD 1 trillion business, according to the International Energy Agency (IEA). It says that turbines are growing in size and in power capacity, which in turn is "delivering major performance and cost improvements for offshore wind farms".

How big is offshore wind?

The global offshore wind market grew nearly 30% per year between 2010 and 2018, according to the IEA, due to rapid technology improvements, It calculated that about 150 new offshore wind projects are in active development around the world. Europe in particular has fostered the technology's development, led by Britain, Germany and Denmark, but China added more capacity than any other country in 2018.

How many offshore fixed and floating wind farms are planned for Irish waters?

A report for the Irish Wind Energy Assocation (IWEA) by the Carbon Trust – a British government-backed limited company established to accelerate Britain's move to a low carbon economy - says there are currently 14 fixed-bottom wind energy projects, four floating wind projects and one project that has yet to choose a technology at some stage of development in Irish waters. Some of these projects are aiming to build before 2030 to contribute to the 5GW target set by the Irish government, and others are expected to build after 2030. These projects have to secure planning permission, obtain a grid connection and also be successful in a competitive auction in the Renewable Electricity Support Scheme (RESS).

How do wind farms connect to the national grid?

The electricity generated by each turbine is collected by an offshore electricity substation located within the wind farm. Seabed cables connect the offshore substation to an onshore substation on the coast. These cables transport the electricity to land from where it will be used to power homes, farms and businesses around Ireland. The offshore developer works with EirGrid, which operates the national grid, to identify how best to do this and where exactly on the grid the project should connect.

What is the planning regime in Ireland for offshore wind?

The new Marine Planning and Development Management Bill will create a new streamlined system for planning permission for activity or infrastructure in Irish waters or on the seabed, including offshore wind farms. It is due to be published before the end of 2020 and enacted in 2021.

Who are the main investors in Irish offshore wind?

There are a number of companies aiming to develop offshore wind energy off the Irish coast and some of the larger ones would be ESB, SSE Renewables, Energia, Statkraft and RWE.

Is there scope for community involvement in offshore wind?

There are a number of companies aiming to develop offshore wind energy off the Irish coast and some of the larger ones would be ESB, SSE Renewables, Energia, Statkraft and RWE. Is there scope for community involvement in offshore wind? The IWEA says that from the early stages of a project, the wind farm developer "should be engaging with the local community to inform them about the project, answer their questions and listen to their concerns". It says this provides the community with "the opportunity to work with the developer to help shape the final layout and design of the project". Listening to fishing industry concerns, and how fishermen may be affected by survey works, construction and eventual operation of a project is "of particular concern to developers", the IWEA says. It says there will also be a community benefit fund put in place for each project. It says the final details of this will be addressed in the design of the RESS (see below) for offshore wind but it has the potential to be "tens of millions of euro over the 15 years of the RESS contract". The Government is also considering the possibility that communities will be enabled to invest in offshore wind farms though there is "no clarity yet on how this would work", the IWEA says.

What is the projected generating capacity from offshore wind in Irish waters?

Based on current plans, it would amount to around 12 GW of offshore wind energy. However, the IWEA points out that is unlikely that all of the projects planned will be completed. The industry says there is even more significant potential for floating offshore wind off Ireland's west coast and the Programme for Government contains a commitment to develop a long-term plan for at least 30 GW of floating offshore wind in our deeper waters.

How high are the wind turbines offshore?

There are many different models of turbines. The larger a turbine, the more efficient it is in producing electricity at a good price. In choosing a turbine model the developer will be conscious of this ,but also has to be aware the impact of the turbine on the environment, marine life, biodiversity and visual impact. As a broad rule an offshore wind turbine will have a tip-height of between 165m and 215m tall. However, turbine technology is evolving at a rapid rate with larger more efficient turbines anticipated on the market in the coming years.

What is the Renewable Electricity Support Scheme or RESS?

The Renewable Electricity Support Scheme is designed to support the development of renewable energy projects in Ireland. Under the scheme wind farms and solar farms compete against each other in an auction with the projects which offer power at the lowest price awarded contracts. These contracts provide them with a guaranteed price for their power for 15 years. If they obtain a better price for their electricity on the wholesale market they must return the difference to the consumer.

Does RESS apply to offshore wind farming?

Yes. The first auction for offshore renewable energy projects is expected to take place in late 2021.

What is the difference between fixed and floating offshore wind farms?

Cost is one difference, and technology is another. Floating wind farm technology is relatively new, but allows use of deeper water. Ireland's 50-metre contour line is the limit for traditional bottom-fixed wind farms, and it is also very close to population centres, which makes visibility of large turbines an issue - hence the attraction of floating structures Do offshore wind farms pose a navigational hazard to shipping? Inshore fishermen do have valid concerns. One of the first steps in identifying a site as a potential location for an offshore wind farm is to identify and assess the level of existing marine activity in the area and this particularly includes shipping. The National Marine Planning Framework aims to create, for the first time, a plan to balance the various kinds of offshore activity with the protection of the Irish marine environment. This is expected to be published before the end of 2020, and will set out clearly where is suitable for offshore renewable energy development and where it is not - due, for example, to shipping movements and safe navigation.

Do offshore wind farms pose a hazard to wildlife and what mitigation measures are in place?

YEnvironmental organisations are concerned about the impact of turbines on bird populations, particularly migrating birds. A Danish scientific study published in 2019 found evidence that larger birds were tending to avoid turbine blades, but said it didn't have sufficient evidence for smaller birds – and cautioned that the cumulative effect of farms could still have an impact on bird movements. A full environmental impact assessment has to be carried out before a developer can apply for planning permission to develop an offshore wind farm. This would include desk-based studies as well as extensive surveys of the population and movements of birds and marine mammals, as well as fish and seabed habitats. If a potential environmental impact is identified the developer must, as part of the planning application, show how the project will be designed in such a way as to avoid the impact or to mitigate against it.

How many people are typically employed on an offshore wind farm?

A typical 500 MW offshore wind farm would require an operations and maintenance base which would be on the nearby coast. Such a project would generally create between 80-100 fulltime jobs, according to the IWEA. There would also be a substantial increase to in-direct employment and associated socio-economic benefit to the surrounding area where the operation and maintenance hub is located.

What are the training routes to becoming involved in offshore wind?

The recent Carbon Trust report for the IWEA, entitled Harnessing our potential, identified significant skills shortages for offshore wind in Ireland across the areas of engineering financial services and logistics. The IWEA says that as Ireland is a relatively new entrant to the offshore wind market, there are "opportunities to develop and implement strategies to address the skills shortages for delivering offshore wind and for Ireland to be a net exporter of human capital and skills to the highly competitive global offshore wind supply chain". Offshore wind requires a diverse workforce with jobs in both transferable (for example from the oil and gas sector) and specialist disciplines across apprenticeships and higher education. IWEA have a training network called the Green Tech Skillnet that facilitates training and networking opportunities in the renewable energy sector.

What types of employment are available?

It is expected that developing the 3.5 GW of offshore wind energy identified in the Government's Climate Action Plan would create around 2,500 jobs in construction and development and around 700 permanent operations and maintenance jobs. The Programme for Government published in 2020 has an enhanced target of 5 GW of offshore wind which would create even more employment. The industry says that in the initial stages, the development of offshore wind energy would create employment in conducting environmental surveys, community engagement and development applications for planning. As a site moves to construction, people with backgrounds in various types of engineering, marine construction and marine transport would be recruited. Once the site is up and running , a project requires a team of turbine technicians, engineers and administrators to ensure the wind farm is fully and properly maintained, as well as crew for the crew transfer vessels transporting workers from shore to the turbines.

How important could offshore wind energy be?

The IEA says that today's offshore wind market "doesn't even come close to tapping the full potential – with high-quality resources available in most major markets". It estimates that offshore wind has the potential to generate more than 420 000 Terawatt hours per year (TWh/yr) worldwide – as in more than 18 times the current global electricity demand. One Terawatt is 114 megawatts, and to put it in context, Scotland it has a population a little over 5 million and requires 25 TWh/yr of electrical energy.

How advanced is wave technology for renewable energy?

Not as advanced as wind, with anchoring a big challenge – given that the most effective wave energy has to be in the most energetic locations, such as the Irish west coast. Britain, Ireland and Portugal are regarded as most advanced in developing wave energy technology. The prize is significant, the industry says, as there are forecasts that varying between 4000TWh/yr to 29500TWh/yr. Europe consumes around 3000TWh/year.

How is the Irish industry represented?

The industry has two main umbrella organisations – the Irish Wind Energy Association, which represents both onshore and offshore wind, and the Marine Renewables Industry Association, which focuses on all types of renewable in the marine environment.