Overall gas demand rises in July as coal exits electricity generation mix: Gas Networks Ireland demand statement
Gas demand surged in July 2025 as Ireland marked its first month in more than four decades without coal contributing to electricity generation.
Gas Networks Ireland’s latest gas demand statement shows that overall gas demand in July 2025 rose by 22 per cent month-on-month compared to June, and by eight percent year-on-year compared to July 2024, despite July 2025 being warmer than average1.
The increase was largely driven by higher gas demand to generate electricity, which grew by 35 per cent compared to June and by 12 per cent compared to July 2024. Demand fell across most other sectors, including residential (-36%), education2 (-23%) and offices3 (-21%) month-on-month.
July also marked a historic milestone in Ireland’s energy mix, as coal did not contribute to electricity generation for the first time in more than 40 years. This followed the closure of Moneypoint’s coal fired operations in June 2025.
During the month gas generated over half (51%) of Ireland’s electricity, peaking at 92 per cent4 and never falling below 17 per cent4, ensuring the stability and reliability of the national energy system. Wind provided 24 per cent of electricity in July, although its contribution fell away completely at times of low wind4.
Gas Networks Ireland’s Head of Regulatory Affairs Con O’Donnell, said:
“July’s 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.”
2 ‘Education’ refers to large educational campuses
3 ‘Offices’ refers to large office campuses
4 All peak and low measurements recorded over a 15-minute resolution