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Displaying items by tag: renewable energy

A Fine Gael MEP has called for EU investment in Irish ports to support development of renewable energy.

Midlands-North-West MEP Colm Markey warned that Ireland cannot achieve energy security, and consumers will continue to face unpredictable energy costs unless there’s a significant scale-up in renewable energy production.

The MEP is hosting a conference, entitled “Europe’s Energy Future: Ireland’s Opportunity,” in Dundalk Institute of Technology, this Friday (February 2nd).

“We can discuss ambitious renewable energy targets day in day out, but nobody seems to be addressing the elephant in the room,”Markey said.

“When it comes to the rollout of offshore wind development in particular, there are too many bottlenecks with no plan to address them. Our ambition is not matched with delivery, and a major re-think is needed,” he said.

“Ports such as Drogheda, Bremore, Galway and others across the country will have a vital role to play in facilitating the development of renewable energy by offering service hubs, turbine construction sites and green hydrogen production,” he said.

“It’s imperative that the EU and the Irish Government invest in Ireland’s port infrastructure,” he said, identifying this as one of five key areas requiring action.

He outlined the other four key areas as planning reform, including designation of “renewable acceleration areas” where planning consents can be expedited; expanded grid capacity’ investment in long-term skills and training; and addressing supply chain issues,including the need to “build-up local production” and ensure “abundant access to a range of raw materials.”

Published in Ports & Shipping

The University of Galway has confirmed the successful testing of a next-generation marine hydrokinetic turbine foil for renewable energy.

The technology was designed by US-headquartered global leader in marine energy ORPC Ireland and fabricated by ÉireComposites, based Indreabhán, Co Galway.

A five-metre long foil has been made from high-performance, carbon fibre reinforced polymer, shaped similarly to an airplane wing.

When placed perpendicular to river or tidal currents, the foils spin under that force and the technology sends clean, renewable energy via an underwater generator, the designers say.

The technology underwent intense stress testing in the university’s large structures testing laboratory to demonstrate its ability to withstand operational loads over its design lifetime.

Prior to completing the testing campaign, a destructive static test was performed on the foil to demonstrate its structural integrity at loads well in excess of what is expected during operation in the marine environment.

The testing programme is part of the €3.9 million European Commission’s Horizon 2020-funded CRIMSON project, and involved 1.3 million fatigue cycles on the turbine foil – the highest number ever reported on a full-scale marine energy component in dry laboratory conditions.

The tests were led by the university’s sustainable and resilient structures research group which is part of the Enterprise Ireland-supported technology centre Construct Innovate and the University’s Ryan Institute.

“The combination of such high-level design and manufacturing with University of Galway’s state-of-the-art testing will improve the reliability of river and tidal energy devices as they move closer to commercial viability,”Dr William Finnegan, Assistant Professor and Principal Investigator of CRIMSON at the University of Galway, said.

Tomás Flanagan, chief executive of ÉireComposites, said his company was delighted that the turbine foils it had made had performed so well during testing.

“The foils have a complex helical shape and are challenging to manufacture; they are a credit to the engineers and technicians who worked on the project,”he said.

Dr William Finnegan, Assistant Professor and Principal Investigator on the CRIMSON project at the University of Galway, inspects the 5m carbon fibre reinforced polymer foil, which has undergone successful stress testing at the University’s Large Structures Testing Laboratory ahead of being trialled in the marine environment in the 80kW RivGen marine hydrokinetic energy turbineDr William Finnegan, Assistant Professor and Principal Investigator on the CRIMSON project at the University of Galway, inspects the 5m carbon fibre reinforced polymer foil, which has undergone successful stress testing at the University’s Large Structures Testing Laboratory ahead of being trialled in the marine environment in the 80kW RivGen marine hydrokinetic energy turbine

“We’re delighted to see our work with ORPC Ireland, University of Galway, and the other partners coming to fruition and we’re excited about the commercial potential for marine hydrokinetic devices in delivering clean, sustainable energy,”he said.

“At a time when global interest is focused on achieving a net-zero emission future, it is great to be making advances in the technology that supports this global shift,” he said.

The successful testing was also welcomed by Patrick Cronin, Director of European Operations at ORPC Ireland.

The next phase of the project will involve trials with the complete turbine in operational conditions at Consiglio Nazionale delle Ricerche’s large towing tank in Rome, Italy.

Published in Power From the Sea

Ireland’s transition to offshore renewable energy and other energy measures will cost at least €129bn in investment between 2024 and 2030, a report by the Davy Group estimates.

This equates to over €18.5bn investment per year or 6.8% of modified Gross National Income (GNI) and is comparable with international norms of c. 5% of GNI, the wealth management and capital markets group says.

This is roughly equivalent to €25,000 per individual by 2030, the report by Dr Fergal McNamara, senior policy director at Davy, says.

The Davy White Paper, published today and entitled “Investing in tomorrow: Shaping a Net Zero future” examines how this investment will be funded and by whom.

Of the €129bn investment on dedicated energy transition measures, the private sector will account for 85% of planned investment, it says.

This will be driven by electrification of energy and transport and retrofitting of homes and businesses,

Dr McNamara’s analysis is focused on dedicated energy transition measures, but he notes that total investment on measures substantially attributable to climate, including tens of billions of euro of planned investment under the National Development Plan, will likely exceed €150bn.

This makes it the largest-ever investment by the State, households and businesses.

“Though these are punchy numbers, they dwarf the environmental, economic, political and social costs of doing nothing, as evidenced by the destruction and cost of recent flooding in East Cork. EU fines and reputational damage will also keep Ireland’s “feet to the fire” to deliver on climate change objectives or suffer even greater cost over the longer term, he said.

Published in Power From the Sea
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The British Labour Party has promised to fast-track infrastructure such as wind turbines, pylons and solar farms through the planning system and to protect developers from legal challenges.

The Labour Party has promised British voters it will pledge to protect significant infrastructure from “vexatious” legal action by offering clearer guidance to developers, and will offer local communities “sweeteners” such as cheaper energy for accepting wind turbines in their area.

As The Times newspaper reports, the Labour Party has said it will initiate a review of national planning statements to ensure that priorities like net zero and economic growth play a key role in decisions.

Shadow chancellor of the exchequer Rachel Reeves says cheaper energy will be offered as “sweeteners” to local communities closest to offshore and onshore renewable projects

She has promised that a Labour government will overhaul Britain’s “antiquated” planning system.

“If the Tories won’t build, if the Tories can’t build, then we will. Taking head-on the obstacles presented by our antiquated planning system,” she has said.

“We will set clear objectives, hardwiring national priorities like economic growth and net zero into the planning system, as is done in Germany,” her party has said.

Read more in The Times here (subscription required)

Published in Power From the Sea

Swedish energy giant Vattenfall’s decision to stop work on a multi-billion euro windfarm off the Norfolk coast has dealt a blow to Britain’s renewable energy targets.

As The Guardian reports, Vattenfall said it was no longer profitable to work on the Norfolk Boreas windfarm, designed to provide power to the equivalent of 1.5 million British homes.

Jess Ralston of Britain’s Energy and Climate Intelligence Unit think tank said the withdrawal was influenced by the British government’s decision to set the starting price for the next contract auction before a global rise in market prices.

International increases in gas prices have led to a 40 per cent increase in manufacturing costs, which has put “significant pressure on all new offshore wind projects, Vattenfall said.

“It simply doesn’t make sense to continue this project,” Vattenfall’s chief executive Anna Borg is quoted as saying.

“Higher inflation and capital costs are affecting the entire energy sector, but the geopolitical situation has made offshore wind and its supply chain particularly vulnerable.”

Vattenfall secured the contract to build the Norfolk Boreas project last year after bidding what is described as a “record low price” of £37.35 (43.46 euro) per megawatt hour for electricity generated.

Read The Guardian report here

Published in Power From the Sea
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The ESB and the Port of Cork Company have signed a memorandum of understanding regarding joint plans for Ireland’s offshore wind and green hydrogen development, as the Irish Examiner reports.

A key factor of Port of Cork’s masterplan is aiming to position the city and its natural, deep-channel harbour at the forefront of Ireland’s growing offshore renewable energy sector.

And with the ESB’s Net Zero by 2040 seeing collaboration as critical to the development of green energy in Ireland, the partnership comes at an opportune time.

The Irish Examiner has more on the story HERE.

Published in Power From the Sea

IberBlue Wind, a joint venture focused on the development of floating offshore wind farm projects, is commencing operations in Spain and Portugal with the aim of becoming one of the leading players in the offshore market off the Iberian Peninsula.

The company presented its strategic plans for the market today in Madrid. Its three backers - Global Irish company Simply Blue Group and the Spanish companies Proes Consultores and FF New Energy Ventures - have collectively extensive international experience in renewable project development. Thanks to this alliance, IberBlue Wind has the capacity to take on all phases of floating offshore wind farm development.

Simply Blue Group is a global developer of floating offshore wind farms with projects in Ireland, UK, US, Poland, and Sweden. Simply Blue Group currently has a pipeline of 10GW of projects under development. As part of its growth strategy, the company is now expanding into the Spanish and Portuguese markets.

Proes Consultores is the specialised engineering and architecture division of the Amper Group, with broad experience in the marine and coastal engineering sectors. Proes Consultores offers engineering, industrial and technological services and has participated in the design of Kincardine, a floating wind project in Scotland. Proes is one of the companies integrated into the Amper Group, a multidisciplinary group that also counts amongst its subsidiaries, Nervión Offshore, a global leader in the construction and assembly of offshore wind farms.

The third member is FF New Energy Ventures, a leader in the development, construction, and operation of solar photovoltaic and renewable energy plants in Spain, which has incorporated offshore wind energy into its portfolio. It is currently developing solar PV, wind and BESS projects in Spain and Portugal, having so far created a portfolio of 2 GW between the two countries, with more than 0.5 GW with connection rights already secured.

Supported by the alliance of these three leading companies, IberBlue Wind will participate in the public auctions for offshore sites off Spain and Portugal and will undertake the early development and design of the projects in advance of the construction and commissioning of wind turbines. To this end, its aim is to develop around 2 GW of floating offshore wind capacity off the Iberian Peninsula, comprising wind farms each of 500MW or more.

Initially, IberBlue Wind will focus on two strategically selected regions. In Spain, it will start in Andalusia, where it aspires to lead the promotion of offshore wind energy as a new economic engine for the region; and Galicia, one of the communities with the greatest potential for this form of renewable energy. In Portugal, IberBlue Wind will focus on the central and northern parts of the country where there is an excellent wind energy resource.

Iberian offshore wind market leadership potential

During the launch, Adrián de Andrés, Vice President of IberBlue Wind, highlighted "the potential for Spain and Portugal to become world leaders in offshore wind generation, as both countries have excellent wind resources, a long history in coastal engineering and first-class public works".

IberBlue Wind can play a key role in delivering this goal because, as De Andrés said, "we can leverage our knowledge and experience acquired in floating offshore wind projects in Great Britain, Ireland and elsewhere, in the Iberian market.” In his speech, the Vice President also called for the Spanish government to be "more ambitious" in the tendering of offshore wind farms. In this context, he stated that the generation capacity of these facilities in Spain could reach more than 10GW in the long-term future.

This generation capacity is much higher than initially envisaged in the Roadmap for Offshore Wind and Marine Energy Development, which has set a target of between 1 and 3GW by 2030. The current draft of the Marine Spatial Plan assigns a space for offshore wind that only covers 0.8% of the available maritime space along its 8,000km of coastline; a density that he described as "conservative" if one considers that leading countries such as Scotland already allocate around 2.5%.

Regarding Portugal, Adrián de Andrés considers that its legislation "is ready to provide exclusive maritime space for wind energy, although a regulation is needed to establish the procedure for the auctioning of these development rights". In Portugal, which has 987 kilometres of coastline, the government has committed to producing 8GW of ocean renewable energy in the coming years, almost double the 5.6GW of current onshore wind power generation capacity.

Offshore energy, under discussion

The presentation also included the round table "Offshore wind: the challenge of blue energy in the Iberian market", with the participation of Juan Ramón Ayuso, Head of the Wind and Offshore Energy Department of the Institute for Energy Diversification and Saving (IDAE); Tomás Romagosa, Technical Director of the Spanish Wind Energy Association (AEE); Antonio Sarmento, President of WavEC Offshore Renewables of Portugal and Dorleta Marina, Portfolio Director of IberBlue Wind.

The experts analysed the current legislative context in Spain and Portugal and explained the main challenges facing the sector in the coming years.

About IberBlue Wind

IberBlue Wind is a joint venture developing offshore floating wind farm projects for the Iberian market. The partners are Simply Blue Group, a leader in offshore floating wind energy globally, and Spanish companies Proes Consultores, the engineering division of Grupo Amper, and FF New Energy Ventures (FF NEV), a developer of renewable projects. IberBlue’s objective is to help Spain and Portugal position themselves as leaders in this field of renewable energies.

Using its knowledge of the market and its extensive experience in the area of offshore wind farm development, IberBlue Wind will take advantage of the greater intensity of offshore wind to generate clean and efficient electricity from renewable sources.

To this end, IberBlue Wind aims to develop around 2GW of offshore wind energy capacity off the peninsula comprised of wind farms each of 500MW or more.

Published in Environment

Energy ministers linked to the North Seas Energy Cooperation (NSEC) and the European Commission have pledged a “significant increase in their collective ambition” in the deployment of offshore renewable energy.

Nine NSEC countries, including Ireland, which met in Dublin today under the Irish co-presidency, agreed on what they describe as “aggregate, non-binding offshore renewable energy targets for the maritime area of the entire NSEC region”.

The nine NSEC countries have agreed to reach at least 260GW of offshore wind energy by 2050.

This will represent more than 85% of the EU-wide ambition to reach 300GW by 2050.

The NSEC is a regional non-binding and voluntary EU cooperation framework which aims to advance the development of offshore renewable energy in the geographical area of the North Seas, including the Irish and Celtic Seas.

The nine NSEC countries have agreed to reach at least 260GW of offshore wind energy by 2050The nine NSEC countries have agreed to reach at least 260GW of offshore wind energy by 2050

It is associated with a political declaration adopted in 2016, and members including Ireland are Belgium, Denmark, France, Germany, Luxembourg, the Netherlands, Norway, Sweden and the European Commission.

The group reiterated their commitment that cooperation within the NSEC will be the framework for achieving their increased offshore ambitions.

Commenting at the meeting, Minister for the Environment, Climate and Communications, Eamon Ryan said that “in Ireland alone our sea area is seven times our landmass”.

“The North Atlantic and North Sea comprise some of the windiest locations on the globe. It is our greatest collective resource of continuous energy and it is momentous that we have agreed today to be ambitious in our targets, as a collective,”he said.

“ Russia’s illegal invasion of Ukraine and the consequential energy price shock and security of supply crisis has shown us how crucial it is that we move away, as quickly as possible, from our reliance on expensive and ransomed fossil fuels,”Ryan said.

“ It has also shown us how important unity across the European Union has been in responding to this crisis. When it comes to realising the potential of offshore wind, again, it is best that we work in unity, that we set agreed targets, and that we operate as a collective,”he said.

“With this approach, we can provide assurances to householders and businesses – in our own countries and across Europe – that firstly, Europe will be energy independent, and secondly, that these new renewable energy sources and resultant hydrogen from our seas will be fairly shared and, critically, will be affordable,” he said.

EU Commissioner for Energy, Kadri Simson said that the commitment is “a great example of the kind of regional cooperation that the Commission envisaged in our Offshore Renewable Energy Strategy”.

“It is impressive that the target agreed by nine NSEC countries constitutes more than 85% of the EU-wide ambition we outlined two years ago. The green energy transition has only become more urgent since Russia's invasion of Ukraine,”Simson said.

“The acceleration of renewables deployment is one of the three pillars of the REPowerEU Plan to end our dependence on Russian fossil fuels. Increasing renewable energy will not only help to improve the sustainability of our energy sector, it will improve our security of supply and the affordability of energy – two challenges that we are facing in the EU at the moment,”Simson said

The EU ambition of achieving 300 GW of offshore wind by 2050 is as set out in the EU strategy for offshore renewable energy.

Published in Power From the Sea
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Oceanographers at Bangor University in Wales are calling for research into the environmental impact of turbulence caused by tidal flow past floating deep-water wind farms.

New research is needed to fully understand how locating varying types of wind turbines could affect not only the seabed, but the waters, and everything they contain, according to Dr Ben Lincoln of Bangor University.

Britain leads offshore wind energy production globally, with current power generation meeting one-third of the national demand (~10GW), and floating wind in deep shelf sea areas has been identified as a major route in the “net zero” goal.

A current target to produce 50GW by 2030 is an increase of 67% on the target set just 12 months ago.

However, Dr Lincoln and fellow researchers notes that offshore sites at a depth of over 50 metres are very different in nature to shallow coastal sites used so far.

They say that with an additional 20,000 wind turbines set to be built in British water, there is a need to ensure full awareness of the positive and negative effects their presence could have on the surrounding environment.

“Our shelf seas are fully mixed during winter, but during summer months the deeper regions stratify, with a warm surface layer overlying the cooler water below,”Dr Lincoln has said in a statement.

“ This triggers a phytoplankton bloom which can be seen from space and forms the base of the marine food chain, supporting fish, seabirds and whales,”he explains.

“ During summer months following the spring bloom, phytoplankton growth is supported by nutrients stirred up from below by turbulence associated with wind and tides. This turbulence also mixes oxygen down to the deep water, where it is required for other key biological processes,”he notes.

A diagram shows the potential impact of wind infrastructure mixing in stratified water. Flow past the floating foundations show a wider area of possible mixing between the surface and deep waters behind the tethered turbines sited in the deeper water and beyondA diagram shows the potential impact of wind infrastructure mixing in stratified water. Flow past the floating foundations show a wider area of possible mixing between the surface and deep waters behind the tethered turbines sited in the deeper water and beyond

“Environmental assessments for the shallow shelf seas have focused on wildlife using or living within the affected areas. The difference with the deeper seas is that the fundamental functioning of the seas themselves could be affected,” Lincoln says.

“Turbulent mixing determines the timing and rate of the food supply on which marine ecosystem and key species rely. Flow past deep water wind farms will introduce ‘anthropogenic’ or man-made turbulence, and increase mixing,”he says.

“ This fundamental change could lead to significant regional impacts, which must be assessed. However, impacts are not necessarily negative, with the potential to enhance productivity and offset the impact of increasing stratification due to climate change,”he says.

“There’s no doubt that this growth in renewable energy is essential to meet global 2050 net zero commitments,” he says.

More details are in a research paper: Anthropogenic Mixing in Seasonally Stratified Shelf Seas by Offshore Wind Farm Infrastructure, published in Frontiers.

Published in Power From the Sea

Master mariner Capt Robert McCabe has been appointed to chair the Government’s first seafood/offshore renewable energy working group.

The two-year appointment was confirmed by Minister for Housing, Local Government and Heritage Darragh O’Brien.

Delays in establishing the working group had led to recent warnings by fishing industry representatives that both sectors could be on a “collision course”.

Capt McCabe has extensive maritime experience in a variety of senior roles during a 35-year career with the Commissioners of Irish Lights (CIL).

He served as first master of the ILV Granuaile, before later being appointed to several management positions in CIL, including assistant inspector, deputy head of marine, head of marine, and director of operations and navigation.

He has also served as the president of the Irish Chamber of Shipping and the International Chamber of Shipping (ICoS), and is a current member of a number of marine bodies, including the Nautical Institute and the Royal National Lifeboat Institution (RNLI).

Mr O’Brien said that the seafood/offshore renewable energy (ORE) working group has been established to “facilitate discussion on matters arising from the interaction of the seafood and offshore renewable energy industries, to promote and share best practice, and to encourage liaison with other sectors in the marine environment”.

He said that Capt McCabe brings extensive knowledge of both the seafood and ORE sectors, having previously worked with both in relation to maritime navigational safety.

“His work has enabled him to gain an extensive knowledge of the Irish coast and maritime activity across all sectors, and he brings a record of effective delivery of offshore engineering and navigation safety projects, which will prove valuable within the setting of this group,” he said.

‘’I’m delighted to appoint someone of Robert’s vast experience and capability to this position. Throughout his career, Robert has demonstrated the type of qualities that this group requires, working with diverse marine groups to achieve win-win solutions by showing leadership, drive and determination to succeed,” Mr O’Brien said.

“I also note that his specific expertise in safety at sea will prove extremely beneficial to the work of the group as the group progresses,” he said, wishing him “the best of luck”.

The appointment has been welcomed by Minister for the Environment, Climate and Communications, Eamon Ryan and Minister for Agriculture, Food and Marine, Charlie McConalogue.

Published in Marine Planning
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Ireland's Offshore Renewable Energy

Because of Ireland's location at the Atlantic edge of the EU, it has more offshore energy potential than most other countries in Europe. The conditions are suitable for the development of the full range of current offshore renewable energy technologies.

Offshore Renewable Energy FAQs

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

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".

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.

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).

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.

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.

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.

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.

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.

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.

 

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.

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

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.

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.

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.

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.

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.

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.

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.

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.

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