Ireland’s business energy market recorded one of its strongest renewable performances for a November, with wind farms supplying 35 per cent of national electricity demand, according to Wind Energy Ireland. When combined with solar and other renewable sources, almost 40 per cent of Ireland’s electricity came from renewables during the month.

For businesses exposed to energy costs, the figures underline the growing influence of wind generation on wholesale electricity pricing. Wind Energy Ireland said the average wholesale electricity price in November stood at €122.75 per megawatt-hour, representing a 16 per cent decrease from €146.14 per megawatt-hour recorded in the same month last year.

Price volatility across the month reflected Ireland’s generation mix. On days with the highest wind output, wholesale prices averaged €82.55 per megawatt-hour. In contrast, prices rose sharply to €181.60 per megawatt-hour on days when the system relied almost entirely on imported fossil fuels, reinforcing the cost exposure associated with energy imports.

“Irish people want cleaner, more affordable, energy and that’s exactly what wind and solar farms deliver,” said Justin Moran, director of external affairs at Wind Energy Ireland. He added: “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.”

Wind Energy Ireland reported total wind generation of approximately 1,311 gigawatt-hours in November 2025. Kerry was the highest-producing county at 128 gigawatt-hours, followed by Cork with 125 gigawatt-hours, Offaly with 96 gigawatt-hours, Galway with 91 gigawatt-hours and Derry with 90 gigawatt-hours.

“Every time a wind turbine generates power, it helps to lower wholesale electricity prices and, ultimately, consumers’ bills,” Moran said. 

Explore how renewable generation trends are reshaping Ireland’s business energy costs and infrastructure priorities.

(Photo Credits to Irish Wind Energy Association)