Wind generation in Ireland reached its second-highest level ever recorded for the month of November, according to Wind Energy Ireland (WEI), which has published its latest monthly wind energy report.

The data shows that wind farms supplied 35 per cent of the country's electricity during the month, while solar energy and other renewable sources contributed a further four per cent. This brought the total share of electricity generated from renewables to nearly 40 per cent.

Wholesale electricity prices also fell during November. The average wholesale price stood at €122.75 per megawatt-hour (MWh), a decrease of 16 per cent compared with €146.14 per MWh in the same month last year.

WEI said prices varied significantly depending on the availability of wind power. On days with high wind generation, the average cost of electricity dropped to €82.55 per MWh, while on days when Ireland relied largely on imported fossil fuels prices rose to €181.60 per MWh.

Commenting on the figures, Justin Moran, Director of External Affairs at Wind Energy Ireland, said: "Irish people want cleaner, more affordable, energy and that's exactly what wind and solar farms deliver.

"It's positive to see renewables once again supplying nearly 40 per cent of our electricity last month, with wind alone providing more than a third of the country's power.

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"Every time a wind turbine generates power, it helps to lower wholesale electricity prices and, ultimately, consumers’ bills. The more renewable energy we bring onto the system, the more we can displace the most expensive fossil fuels and drive prices down even further."

The report also breaks down wind generation on a county-by-county basis. Total wind power generation in November 2025 amounted to approximately 1,311 gigawatt-hours (GWh). Kerry was once again the highest producing county, generating 128 GWh, followed by Cork with 125 GWh, Offaly with 96 GWh and Galway with 91 GWh. Derry secured the final place in the top five with 90 GWh, narrowly ahead of Tipperary.

Justin Moran said the figures highlight the growing importance of wind energy across the country.

"Every month we see just how important wind energy is for Ireland and these latest figures show again the key role it plays in powering the country. Counties like Kerry, Cork, Offaly, Galway and Derry are great examples of what we can achieve when we make the most of our natural resources.

"Millions of euros are invested every year by existing wind farms in community benefit funds for local communities to invest in the priorities they choose for their area like sports grounds and play areas – and that figure is set to grow.

"As we keep growing renewable energy across Ireland, we can improve our energy security, cut emissions and help keep prices more stable for households."

The publication of the monthly report follows the release of the EU Grid Package last week, which sets out measures aimed at upgrading Europe’s electricity grids and improving planning, permitting and investment certainty.

Justin Moran said the package would have a positive impact on Ireland's electricity network but warned that grid limitations remain a major challenge.

"We welcomed the publication of the EU Grids Package which will have a positive impact on the development of Ireland's electricity network.

"So far this year alone 14 per cent of wind power has been lost because our existing grid is simply not strong enough to carry all the renewable electricity that our wind farms produce. That means dirtier energy and higher bills for every Irish family and business.

"To deliver more affordable, clean electricity for homes and businesses across Ireland, we need to work together to grow Ireland’s grid capacity. It is vital to have the necessary energy infrastructure in place if we want to grow our renewable energy supply."