Wind Energy Ireland – Capacity, Farms and the Road to 2030

Wind energy in Ireland now generates roughly a third of the country’s electricity, making the Republic one of Europe’s leading nations for onshore wind power. From the hills of Kerry to the midlands of Offaly, over 300 wind farms have transformed the Irish landscape and become a cornerstone of the national strategy to cut carbon emissions, reduce energy import dependence and bring down electricity costs for consumers.

This guide examines Ireland’s installed wind capacity, the key wind farm locations and operators driving growth, the planning and grid challenges that continue to slow progress, and the ambitious 2030 targets that will define the next phase of expansion.

🌬️ How Much Wind Capacity Does Ireland Have?

As of early 2026, the Republic of Ireland has surpassed 5,000 MW of installed onshore wind capacity, according to Wind Energy Ireland’s annual report published in February 2026. Around 150 MW of new capacity was added during 2025, with a further 450 MW currently under construction and approximately 2,500 MW of projects holding planning permission.

Wind farms delivered around 13,634 GWh of clean electricity in 2025, making wind the second largest source of electricity generation after natural gas. In December 2025 alone, wind farms provided 39% of the country’s power and helped push wholesale electricity prices down from 136.99 euro per MWh in December 2024 to 108.48 euro in December 2025 – a direct demonstration of how more wind on the system reduces costs for consumers.

Ireland’s wind capacity has grown steadily over the past two decades, rising from around 1,027 MW in 2008 to over 5,000 MW today. Growth has averaged roughly 200 MW per year, although some years have seen higher additions when large projects complete construction simultaneously. The country is now recognised as one of the world leaders for installed wind capacity per capita and for the integration of variable renewable electricity onto the grid.

📍 Key Wind Farm Locations and Operators

Wind energy generation in Ireland is spread across the country, though the western and southern seaboards tend to have the strongest and most consistent wind resources. Kerry leads the country as the top producing county for wind power, followed by Cork and Galway. Significant capacity is also found in counties Donegal, Tipperary, Mayo, Roscommon and across the midlands.

The sector is served by a mix of international energy companies and smaller independent developers. Major operators include ESB, SSE Renewables, Statkraft, Bord na Mona (which has transitioned from peat to renewables), Energia, and Coillte. International players such as RWE, EDF Renewables and Greencoat Renewables also have substantial Irish portfolios.

Many of the earlier wind farms were relatively small, with capacities of 10 to 50 MW. Newer developments tend to be larger, taking advantage of bigger turbines that can generate more power from fewer units. The trend toward larger turbines has also helped reduce the cost per megawatt hour of wind-generated electricity, making wind increasingly competitive with fossil fuel generation.

⚡ Wind’s Role in Ireland’s Electricity Mix

Wind energy now occupies a central position in Ireland’s electricity system. Natural gas remains the single largest source of generation, accounting for roughly half of total output, but wind has overtaken all other sources to become the second biggest contributor. In months with strong winds, particularly during the winter, wind can supply 40% or more of the country’s electricity needs.

The all-island electricity system, which integrates the grids of the Republic and Northern Ireland, has been a world leader in managing high levels of variable renewable generation. EirGrid, the transmission system operator, has progressively increased the System Non-Synchronous Penetration (SNSP) limit – essentially the maximum amount of power that can come from wind and solar at any given moment – to 75%, one of the highest thresholds globally.

However, this success comes with challenges. As more wind capacity is added, the issue of dispatch-down (also called curtailment) becomes increasingly significant. In 2025, around 13% of available wind energy did not reach homes and businesses because the grid was not strong enough to carry all the power being produced. This represents a considerable waste of Ireland’s cheapest electricity and drives up costs for consumers by requiring more expensive gas generation to fill the gap.

🏗️ Planning Challenges and Community Opposition

One of the biggest obstacles to meeting Ireland’s wind energy targets is the planning system. Wind Energy Ireland has repeatedly highlighted that too many good projects are being delayed or blocked in the planning process. In Q2 2025, only two new wind farms with a combined capacity of 79 MW were approved by An Coimisiun Pleanala, a drop from a stronger first quarter.

The industry body estimates that to achieve the 9,000 MW of onshore wind energy required by the Climate Action Plan by 2030, An Coimisiun Pleanala would need to approve projects at a significantly faster pace. Additional resources provided to Ireland’s planning authorities have started to make a difference, with decision timelines falling, but further acceleration is needed to meet the deadlines set out in the EU’s RED III Directive.

Community opposition remains a factor in some areas. Concerns about visual impact, noise, shadow flicker and impacts on property values have led to objections against proposed wind farms in many parts of the country. The introduction of community benefit funds under the Renewable Electricity Support Scheme (RESS), which requires developers to pay a minimum of two euro per MWh into local community funds, has helped improve acceptance in some areas. However, planning appeals and judicial reviews can add years to project timelines even where local support exists.

🎯 2030 Targets and Progress

Ireland’s Climate Action Plan sets a target of 9,000 MW of onshore wind capacity by 2030, up from the current level of just over 5,000 MW. This means adding roughly 4,000 MW of new onshore wind in the remaining years – a substantial acceleration compared to recent installation rates of 150 to 250 MW per year.

The RESS auction system is the primary mechanism for supporting new renewable generation. Under RESS, developers bid for contracts at a specified price per MWh, providing revenue certainty that helps secure financing for construction. The fifth successful RESS auction took place in late 2025, securing enough clean power for over 350,000 homes at a strike price of 98 euro per MWh, with up to 45 million euro in community benefit contributions over the life of the scheme.

Grid infrastructure is widely recognised as the critical bottleneck. Budget 2025 allocated 750 million euro for grid investment, and subsequent government budgets have maintained strong funding for EirGrid and ESB Networks to build a more resilient electricity network. The 700 MW Celtic Interconnector, which will link Ireland’s grid to France, is scheduled to come online at the end of 2026 and will provide additional flexibility for managing variable wind generation.

The industry argues that with the right policy support, Ireland can build on its position as the continent’s onshore wind leader. Wind Energy Ireland’s CEO Noel Cunniffe has described the opportunity in terms of building an “Irish electrostate” where secure, clean, affordable power creates new opportunities across the economy, reducing the need to import expensive fossil fuels and strengthening national competitiveness.

🔌 Grid Constraints and Solutions

The electricity grid is the single biggest infrastructure challenge facing wind energy expansion in Ireland. Many of the best wind resources are located in the west and south of the country, far from the main population centres on the east coast where demand is highest. Transmission lines in these areas were not designed to carry the volumes of power now being generated, leading to congestion and curtailment.

EirGrid has committed to a major programme of grid reinforcement, but building new transmission infrastructure is itself subject to planning processes and public opposition. The development of battery storage is seen as a complementary solution, allowing excess wind energy to be stored during periods of high production and released when demand peaks or wind drops.

The full integration of battery energy storage systems into the real-time electricity market from November 2025 has already shown promising results. EirGrid reported record battery discharge levels of 502 MW in December 2025, reducing reliance on conventional gas generation by almost 400 MW on some high-demand days. As more storage capacity comes online, the potential to capture and use currently wasted wind energy will grow significantly.

🌍 Ireland in the European Context

Ireland’s onshore wind sector is significant by European standards, particularly given the country’s relatively small population of just over five million. In 2025, renewables surpassed fossil fuels as a source of electricity generation across Europe for the first time, with wind power playing a leading role. Ireland’s grid integration expertise – managing 75% non-synchronous penetration on a relatively small and isolated system – is ahead of most European peers.

Ireland can learn from its European neighbours, particularly in areas like planning reform, supply chain development and the buildout of offshore wind. However, the country also has genuine expertise to share in integrating high levels of variable renewables onto the grid – a challenge that larger, better-connected European systems are only beginning to face at the penetration levels Ireland has already achieved.

The broader Irish renewable energy strategy relies heavily on continued wind expansion. With onshore wind making up the bulk of current renewable capacity, and offshore wind projects still years from generating power, the successful delivery of the onshore pipeline is essential to meeting both national climate targets and EU obligations under the Renewable Energy Directive.

💶 Economic Impact and Community Benefits

The wind energy sector contributes significantly to Ireland’s economy through direct employment, land lease payments to farmers, local authority rates, and community benefit funds. Wind farms are often located in rural areas where economic opportunities can be limited, and the income generated by turbine construction, operation and maintenance provides a meaningful boost to local economies.

Under the RESS auction system, every successful project must establish a community benefit fund and pay a minimum of two euro per MWh into it for the lifetime of the scheme. The fifth RESS auction secured up to 45 million euro in total community benefit contributions, giving local communities a direct financial stake in renewable energy development. These funds can be used for a range of local purposes, from community facilities and sports clubs to energy efficiency measures for local homes.

Land lease payments to farmers hosting turbines typically range from 10,000 to 20,000 euro per turbine per year, providing a stable secondary income stream that is unaffected by weather or commodity prices. For many rural landowners, hosting a wind turbine has become one of the most reliable income sources available, particularly on land that may be marginal for agriculture.

Employment in the sector spans planning, construction, electrical engineering, environmental consultancy, operations and maintenance, and supply chain logistics. As the sector grows toward the 9,000 MW target, workforce demand will intensify, creating opportunities for skilled workers across the country. Wind Energy Ireland and other industry bodies have called for expanded training programmes and apprenticeships to ensure Ireland has the workforce needed to deliver its renewable energy ambitions.

🔮 What Comes Next for Wind Energy in Ireland?

The coming years will be critical for Ireland’s wind energy sector. With over 5,000 MW installed and a strong pipeline of projects with planning permission, the foundations are in place. But the gap between current capacity and the 2030 target of 9,000 MW remains substantial, and closing it will require sustained progress across planning, grid development, and community engagement.

The biggest risks are continued planning delays, grid congestion that wastes increasing volumes of cheap renewable electricity, and potential supply chain constraints as demand for turbines and components grows across Europe. The biggest opportunities lie in the falling cost of wind technology, growing public awareness of the economic benefits of renewable energy, and the political momentum behind climate action at both national and EU level.

For communities, businesses and policymakers, wind energy represents both a challenge and an enormous opportunity. Getting the balance right between rapid deployment and genuine community engagement will determine whether Ireland can deliver on its promise to become a clean energy leader.