Wind energy continued to play a key role in Ireland’s electricity system in May 2026, generating 960 GWh of electricity and meeting 29% of national power demand, according to the latest figures released by Wind Energy Ireland.

The contribution of wind farms also had a direct impact on electricity market prices. On the days with the highest levels of wind generation, the average wholesale electricity price fell to €117.12/MWh, compared with €178.34/MWh on days when imported fossil fuels accounted for the largest share of the country’s generation mix.

The difference of more than €60/MWh highlights the role of renewable generation in reducing electricity costs in Ireland. Overall, the average wholesale electricity price reached €144.52/MWh in May, up 10.2% from April and marking the third consecutive monthly increase.

Source: Wind Energy Ireland

Wind provides 37% of Ireland’s electricity generation in 2026

During the first five months of 2026, wind energy accounted for 37% of all electricity generated in Ireland, reinforcing its position as one of the country’s main power sources.

According to Wind Energy Ireland, the figures demonstrate how wind power helps shield consumers from the volatility of international fossil fuel markets while strengthening energy security and reducing dependence on imported fuels.

The association noted that every new wind farm connected to the grid contributes to a more resilient electricity system and helps contain power costs for households and businesses.

Kerry remains Ireland’s leading wind-producing county

At the regional level, County Kerry remained Ireland’s largest wind power producer in May, generating 106 GWh of electricity. It was followed by Cork (82 GWh), Galway (81 GWh), Offaly (69 GWh) and Tyrone (68 GWh).

Together, these five counties accounted for nearly half of all wind generation across the island during the month.

Wind Energy Ireland highlighted that growing electricity demand from new housing developments, industry and investment projects will require further expansion of renewable energy capacity, as well as the grid infrastructure needed to connect new projects to the system.

The organization added that increasing the share of low-cost renewable electricity will be essential for reducing emissions, improving energy security and maintaining affordable electricity prices for consumers in the years ahead.