Ireland & Northern Ireland (I-SEM) power market long-term outlook: May 2025

This report presents our May 2025 long-term outlook for the Integrated Single Electricity Market (I-SEM) of Ireland and Northern Ireland. The market report and dataset provide projections out to 2060, commenting on market trends and the changing dynamics of price formation. This outlook incorporates Wood Mackenzie’s Q1 2025 power technology outlooks and latest (May 2025, Strategic Planning Outlook) commodity price forecasts. The report includes capacity projections, supply-demand analysis, market prices, and technology capture prices. A commentary on key takeaways is also provided, along with a summary of changes since our last publication. Annual summary data and a more detailed hourly dataset are provided in the accompanying data files. In addition, we also provide a combined markets long-format data file, lending itself more readily to automated data extraction. This outlook can also be found in Lens Power.