Wind Farms Deliver 24% of Ireland’s Electricity in July

Wind generation in Ireland was the third highest on record for a July, according to the latest monthly report from Wind Energy Ireland (WEI).

Wind farms provided 24 per cent of the country’s electricity last month, generating 786 gigawatt-hours (GWh) in total. Cork overtook Kerry as the top county for wind production for the first time this year, delivering 85 GWh, narrowly ahead of Kerry’s 84 GWh. Offaly (54 GWh), Galway (53 GWh) and Mayo (51 GWh) completed the top five. Together, the top three counties accounted for more than a quarter of all wind generation.

WEI’s Director of External Affairs Justin Moran told RTÉ’s Morning Ireland that while wind energy displaces imported fossil fuels and reduces wholesale electricity prices, delays in grid connections and limited infrastructure are leading to lost renewable output.

“Every year we are losing more of Ireland’s most affordable renewable electricity because our grid is not strong enough to take the power our wind farms produce,” Mr Moran said. He welcomed the additional €3.5 billion for grid development announced in the revised National Development Plan, saying it would help speed delivery of clean and affordable power to homes and businesses.

The share of electricity demand met by wind in July was slightly higher than in the same month last year. Wholesale electricity prices averaged €99.61 per megawatt-hour, down from €110.94 in July 2024. On days with the most wind power, prices fell to €84.80 per megawatt-hour, while on days dominated by fossil fuels they rose to €111.55.

Wind energy has supplied 31 per cent of Ireland’s electricity in the first seven months of 2025. Research published earlier this year suggests that renewable electricity has saved consumers nearly €1 billion since 2000, with further savings expected in the years ahead.