Negative-price tracker · IE-SEM

Negative electricity prices in Ireland (SEM)

4.0

negative hours in 2026 (4 periods)

-41.09

all-time record €/MWh · May 23, 2020

19.0h

longest negative streak · from Apr 4, 2020

785

negative hours all-time (history to 2015)

Monthly negative hours — last 8 months

2024-08: 2 negative hours (min -3.92 €/MWh) 08 2024 2024-09: 2 negative hours (min -3.51 €/MWh) 09 2024-11: 7 negative hours (min -4.12 €/MWh) 11 2025-05: 16 negative hours (min -23.50 €/MWh) 05 16 2025-06: 4 negative hours (min -5.17 €/MWh) 06 2025-09: 12 negative hours (min -3.19 €/MWh) 09 12 2025-10: 26 negative hours (min -18.39 €/MWh) 10 26 2026-04: 4 negative hours (min -10.04 €/MWh) 04

Most negative days on record

DateNegative hoursDeepest price (€/MWh)
2020-04-05 19.0 -14.56
2025-10-04 19.0 -18.39
2020-05-23 18.0 -41.09
2020-07-05 16.0 -19.18
2025-05-25 16.0 -23.50

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Negative prices are an opportunity — if you see them coming.

Our negative-price risk API gives P(price<0) per 15-minute period up to 14 days ahead, Brier-scored publicly. The negative_prices webhook fires seconds after the auction.

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Data: ENTSO-E Transparency Platform · SMARD.de, Bundesnetzagentur. Zone-local time (Europe/Dublin). Updated 0 seconds ago.