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Posted 18 hours ago | 1 minute read

EirGrid sees low winter risk

Sufficient generation will be available to meet demand across Ireland this winter, according to EirGrid.

Published on 16 October the Winter Outlook 2025-26 notes that the system may enter an Amber Alert at times of low wind or interconnector imports, but said the probability of an Emergency Red Alert was low.

From 3 November 2025 to 5 April 2026, the Loss of Load Expectation (LOLE) is 1.1 hours, well inside the annual standard of three hours. Attributed the improvement to new sources of generation, the completion of the 500 MW Greenlink Interconnector with Britain, and continued implementation of the Commission for Regulation of Utilities’ Security of Supply Programme the LOLE figure has fallen from 3.6 hours last winter, 21 hours the year before, and 51 hours in 2022-23. If Temporary Emergency Generation (TEG) and Retained Existing Units (REU) are excluded the LOLE becomes 43.4 hours. The minimum de-rated margin over the winter period is expected to be in the range of 688MW to 973MW. If TEG and REU are excluded the minimum de-rated margin would be in the range -711MW to -426MW.

For Winter 2025-26, the median forecast peak demand is 6,044MW.

Source: EirGrid

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