Mannok aims to cut emissions with €16m investment in Cavan solar plant

Ireland’s electricity grid saw a notable increase in solar power generation during July 2026, driven largely by a prolonged heatwave, according to EirGrid, the national grid operator. Solar energy contributed 9.4% of the country’s total electricity supply in July, marking a sharp rise from less than 6% recorded in the same period of 2025. This surge was attributed to higher sunlight exposure and increased operational efficiency of large-scale solar farms across the nation. The increase in solar output occurred amid broader changes in the composition of Ireland’s electricity mix. While solar energy rose significantly, the share of electricity derived from all renewable sources grew only modestly, increasing from 32% in July 2025 to 32.3% in July 2026. Wind power, which had previously been a dominant force in the renewable sector, saw its contribution fall from 24.1% to 22.4%. Meanwhile, other forms of renewable energy, such as biomass and geothermal, declined sharply, dropping from 2.3% to 0.5%. Fossil fuels remained the largest single source of electricity in Ireland during July. Natural gas accounted for over 43% of the country’s electricity needs, a decrease from approximately 51% in July 2025. The decline in gas usage was partially offset by an increase in imported electricity, which supplied nearly 24% of the nation’s power needs, up from just over 15% in the previous year. These imports primarily came from neighboring countries, including the United Kingdom and France, reflecting ongoing interconnections within the European electricity market. EirGrid reported that total electricity demand in July 2026 amounted to 2,744 gigawatt-hours (GWh). This represents a slight decrease from the 2,734 GWh consumed in July 2025, indicating a minor reduction in overall consumption. Despite this drop, the shift toward solar energy highlights the growing role of photovoltaic technology in meeting Ireland’s power demands, particularly during periods of high temperatures. The data underscores the dynamic nature of Ireland’s energy landscape, with renewable sources gradually gaining ground against traditional fossil fuel-based generation. However, the marginal improvement in the overall renewable share suggests that further investment and policy support will be necessary to achieve long-term sustainability goals. The decline in wind power output raises questions about the reliability of wind as a primary energy source, especially during months when wind speeds may not meet expectations. Industry analysts have noted that the recent performance of solar energy could signal a turning point in Ireland’s transition to cleaner energy. With the government having set ambitious targets for reducing carbon emissions, the increased reliance on solar power during the summer months offers both opportunities and challenges. For instance, while solar can provide substantial energy during peak daylight hours, it requires complementary technologies and storage solutions to ensure consistent supply throughout the day and night. Looking ahead, EirGrid and other stakeholders are expected to monitor how seasonal variations affect the balance between different energy sources. As climate patterns continue to evolve, understanding the interplay between weather conditions and energy production will be crucial for maintaining grid stability and meeting future demand. The integration of additional renewable capacity, along with advancements in energy storage and smart grid technologies, will likely play a key role in shaping Ireland’s energy strategy moving forward.