Negative electricity prices in Spain
605.0
negative hours in 2026 (2,420 periods)
-15.00
all-time record €/MWh · May 11, 2025
11.0h
longest negative streak · from May 24, 2025
1,404
negative hours all-time (history to 2015)
Monthly negative hours — last 20 months
Most negative days on record
| Date | Negative hours | Deepest price (€/MWh) |
|---|---|---|
| 2026-02-14 | 14.3 | -4.00 |
| 2026-01-31 | 12.5 | -0.50 |
| 2026-02-08 | 12.3 | -2.51 |
| 2026-02-12 | 11.5 | -1.00 |
| 2025-05-24 | 11.0 | -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 26 minutes ago.