Irish wind farms provided 38 percent of the country's electricity over the first quarter of 2025, according to Wind Energy Ireland's March Wind Energy report.

The latest figures show that the demand for electricity during March 2025 increased slightly to 3,673 gigawatt-hours (GWh), up from 3,598 GWh in the same month last year.

Based on data published by Green Collective, County Kerry-based wind farms led the way last month, producing more wind energy than any other county (135 GWh). They were followed by Cork (125 GWh), then Galway (89 GWh), Mayo (87 GWh) and Offaly (81 GWh). Together, the top three counties produced over a quarter of Ireland’s wind power in March.

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The share of electricity demand met by wind farms last month, at 33 percent, was slightly below the normal average for wind energy in March but the shortfall was partially compensated by a record month for solar power.

The report also shows that the average wholesale price of electricity in Ireland fell for the second consecutive month to €131.80 per megawatt-hour in March.

Prices last month on days with the most wind power saw the average cost of a megawatt-hour of electricity fall to €112.26 but nearly double to €165.19 on days when we relied almost entirely on fossil fuels.

Noel Cunniffe, CEO of Wind Energy Ireland, said: "Our members provided a third of Ireland's electricity in March. Every time a wind turbine is generating electricity, it is reducing our reliance on imported fossil fuels, helping to push down wholesale electricity prices and increasing our supply of clean energy to power our homes, businesses and local communities.

"Irish wind farms produce power without burning imported fossil fuels, which means we can cut our carbon emissions at the same time as we cut our fuel imports and our prices."

The results of this report are based on EirGrid's SCADA data compiled by MullanGrid, market data provided by ElectroRoute and county-level wind generation data provided by Green Collective.