Gas generated 45% of Ireland's electricity in August while wind energy supplied 27%

August 2025 was fourth warmest ever recorded

Gas demand last month fell 9% compared to July, as warmer weather reduced heating needs across the country and stronger wind generation was recorded. 

Gas demand last month fell 9% compared to July, as warmer weather reduced heating needs across the country and stronger wind generation was recorded. 

August 2025 was the fourth warmest on record, and month-on-month gas demand fell. Nevertheless, Gas Networks Ireland’s latest Gas Demand Statement shows that overall gas demand in August 2025 was 9% higher than in August 2024, driven in part by increased use in electricity generation, as coal-powered generation has been phased out over the past 12 months. 

Gas generated 45% of Ireland’s electricity in August, up from 36 percent in August 2024. Gas’s contribution peaked at 90% and never fell below 13%. 

Wind supplied 27% of electricity in August, peaking at 75%. Solar power contributed 5% of electricity in August. 

Coal still generated 3% of electricity, as it continues to exit Ireland’s energy mix following the closure of Moneypoint’s coal-fired operations in June.  

“While warmer weather reduced overall gas demand and renewables played a significant role, gas ensured a secure and reliable supply when wind output fell away," said Gas Networks Ireland’s director of strategy and regulation Edwina Nyhan.