Ireland has exceeded 1GW of grid-scale solar generation for the first time, reaching a peak of 1133MW.
The record follows earlier peaks of 1021MW on 20 April and 1087MW on 24 April, EirGrid said.
The milestone reflects the growing number of grid-scale solar farms connected to the system, EirGrid added.
A peak of around 750MW was recorded in March 2025 and 755MW in May 2025.
EirGrid is progressing a €18.9 billion investment programme for the electricity grid to support increased renewable integration.
Between February 2025 and January 2026, grid-scale solar met 3.1% of demand compared with 33.2% from onshore wind.
Average annual solar contribution rose from 1.1% in 2023 to 2% in 2024 and 3.1% in 2025.
“Over the coming years, wind and solar will play an increasingly significant role in powering homes, businesses and farms across the country.” said Darragh O’Brien, minister for climate, energy and the environment.
“This is key to reducing our reliance on imported and volatile fossil fuels and to reducing prices for electricity customers.”
“The 1GW milestone recorded by the National Control Centre represents continued progress in integrating renewable energy onto the system, and managing the very complex and technical task of balancing different forms of renewable and conventional generation on the system to ensure we meet national demand.” said Cathal Marley, chief executive of EirGrid (pictured).
“We’re committed to facilitating continued growth through the delivery of electricity infrastructure.”