Negative electricity prices in Spain
647.0
negative hours in 2026 (2,588 periods)
-15.00
all-time record €/MWh · May 11, 2025
11.0h
longest negative streak · from May 24, 2025
1,446
negative hours all-time (to 2015)
Monthly negative hours — last 20 months
Most negative days on record
14.3 h
-4.00 €
12.5 h
-0.50 €
12.3 h
-2.51 €
11.5 h
-1.00 €
11.0 h
-9.70 €
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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.
Data: ENTSO-E Transparency Platform · SMARD.de, Bundesnetzagentur. Zone-local time (Europe/Madrid). Updated 0 seconds ago.