Gas demand surged in July as Ireland marked its first month in over four decades without coal contributing to electricity generation after the closure of the Moneypoint power station in Co Clare in June.
Gas Networks Ireland's latest gas demand statement shows that overall gas demand in July 2025 rose by 22% compared to June, and by 8% compared to July last year, despite July this year being warmer than average.
The increase was largely driven by higher gas demand to generate electricity, which grew by 35% compared to June and by 12% compared to the same month last year. Demand fell across most other sectors, including residential (-36%), education (-23%) and offices (-21%) month-on-month.
Gas Networks Ireland also said that July marked a historic milestone in the country's energy mix, as coal did not contribute to electricity generation for the first time in more than 40 years after the closure of Moneypoint's coal-fired power operations in June.
Today's statement shows that gas generated 51% of Ireland's electricity in July, peaking at 92% and never falling below 17%, which Gas Networks Ireland said ensured the stability and reliability of the national energy system.
It also noted that wind provided 24% of electricity in July, although its contribution fell away completely at times of low wind.
Gas Networks Ireland's Head of Regulatory Affairs Con O'Donnell said its latest report shows the vital role gas continues to play in powering Irelands energy system, particularly as Ireland transitions away from coal in electricity generation.
"With intermittent renewable energy output, gas is a critical partner for electricity generation, providing the flexibility and reliability needed to ensure a secure energy supply for homes, businesses and communities," he added.
The Moneypoint plant will operate as a back-up out-of-market generator of last resort for EirGrid and will use heavy oil for electricity generation in place of coal for the next four years.
