The total installed solar capacity of Ireland reached 1.76 GW as of 31 May 2025, according to the new Solar Ireland report “Scale of Solar 2025”. Based on data from ESB networks of the distribution system, the report shows that Ireland has been transferred from a bad PV executor to a mid-tier market in Europe in Europe within a few years.
The new “Scale of Solar 2025” report from Solar Ireland claims that Irish Solar has grown by almost 160% since 2023, with the installed PV capacity of the country with 156.8% in two years. The report is based on grid connections and capacity data of the distribution system operator of Ireland, ESB Networks, dating until 31 May this year.
Despite the promising growth, Ireland is currently far behind the 2030 goal of 8 GW installed PV. The total installed solar capacity was 1.76 GW at the end of May.
Utility scale Sun farms form the backbone of the new capacity and deliver electricity directly to the grid. The report said that micro-generation and small-scale solar energy also make a difference for the general growth of the sector, in particular because government support schemes encourage people to install solar energy for self-consumption.
Ronan Power, CEO of Solar Ireland, said: “2025 marks a crucial moment -not only for solar energy, but also for how we define the place in Ireland’s Energy Future … In just a few years we have seen solar energy from the sidelines to the center of national energy policy.”
The growing process of the solar scale on the sun is strong. The first large -scale solar farm in Ireland was ratified in County Meath in 2022. In 2025, 885 MW was currently installed at 19 locations, compared to 349 MW in 2023. There is currently 752 MW in the pipeline over 30 projects.
The Solar Ireland report notes that the installations in the commercial and industrial (C&I) sector are particularly impactful because they are large enough to offer cost reductions in energy bills and carbon footprints, but small enough – 200 kVA to 1 MW – to prevent challenges on the grid connection. From mid -2025, 2.29 MW capacity is connected to seven locations, an increase of 0.3 MW in 2023.
Small -scale Zonne -Zon (50 KVA up to 200 KVA) installed by companies, schools, farms and on public buildings is also growing thanks to government support schemes such as Solar For Schools, a subsidy program aimed at solar energy for roofs on roofs on the entire country throughout the country. From mid -2025, Ireland has 40 MW associated capacity over 328 energetic connections in the small -scale category.
Mini-generation systems (17-50VA) designed for self-consumption offer energy dependence for small companies and houses, making it a positive effect on the rural economy. According to Solar Ireland, users are dairy and landworking farms, national agricultural producers, cold storage facilities, community buildings and sports clubs.
From mid-2025, Ireland has 55 MW capacity of mini-generation associated with 2,050 energetic connections, more than double the number of sites registered the year before. This growth is powered by improved subsidy access, simplified grid connection options and a growing awareness in the agricultural sector.
A tennis club saved € 6,000 a year on electricity accounts and registered a 20% decrease in the energy consumption of the grid thanks to a fully supported installation of 19 solar panels and a Huawei hybrid inverter as part of a partnership with Irish Installer OHK Energy in 2024.
By Mid-2025, Ireland had 135 MW of Operational Auto-Production Capacity (Solar Solely for Self Consumption) Across 840 Energized Connections, Up from 95 MW in 2023. This type of generation is Mainly Used by Data Campuses, Large TreTerTment, Larestment, Large Treatmentment, Large Treatmentment, Large Treatment, Large Treatment, Large Treatment, Large Campuses, Large Campuses, Large Treatment, Large, Large Treatment, Large, Large Treatment, Large, Large, Treatment, Large, Treatmentment, Large, Large-Ratment, Large, Large-Ratment, Treatmentment, Large, Large-Ratmentment, Rooftop Installations and Agricultural Businesses with High Thermal or Refrigeration Loads.
In mid-2025, more than 138,000 houses generated their own electricity in the micro-generation, which represents 576 MW installed capacity. National estimates suggest that more than a million roofs in Ireland are suitable for solar energy. However, estimates say that only 13.8% of the sun-ready roofs of Ireland have already been adjusted.
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