Ireland’s solar energy capacity has grown significantly, increasing by 49% in the past year and by 160% since 2023, according to new figures released today by Solar Ireland.
The organisation reports that solar power is now supplying electricity to over 370,000 homes and is helping to prevent more than 395,000 tonnes of carbon emissions annually.
May 2025 marked a record-breaking month for Irish solar energy, with solar meeting 6.5% of the country’s total electricity demand, up from 3.2% in the same month last year. A new peak was recorded on 18 May, when solar energy met 21.1% of national demand at 1:45 p.m.
Currently, 19 utility-scale solar farms are operational across the country, contributing just over 50% of total installed solar capacity.
However, the growth in microgeneration—from rooftop solar panels installed on homes and small businesses—is also driving progress. More than 138,000 homes now have rooftop systems, representing 576 megawatts (MW) of capacity and a 55% increase year-on-year.
“This year’s report shows just how far we’ve come in a short time,” said Ronan Power, CEO of Solar Ireland. “Solar has moved from being a concept to becoming essential national infrastructure—delivering clean power to hundreds of thousands of homes, supporting local employment, and cutting emissions at scale. We’re seeing real momentum, and it’s translating into real impact.”
Mr Power also cited KPMG analysis, which found that solar energy is not only a climate solution, but also a significant driver of job creation, investment, and long-term economic resilience.
“With up to €7.3 billion in economic output forecast between now and 2030, solar energy is fast becoming a cornerstone of Ireland’s clean energy economy,” he said.
Looking ahead, Mr Power emphasised the need to maintain progress and turn current momentum into sustained growth. With more than 21 gigawatts (GW) of solar and solar-hybrid projects in development, the sector is well-positioned to help Ireland meet its 2030 climate targets.