Negative electricity prices in Portugal
472.8
negative hours in 2026 (1,891 periods)
-10.00
all-time record €/MWh · Mar 29, 2026
10.5h
longest negative streak · from Mar 29, 2026
867
negative hours all-time (history to 2015)
Monthly negative hours — last 18 months
Most negative days on record
| Date | Negative hours | Deepest price (€/MWh) |
|---|---|---|
| 2026-02-14 | 14.5 | -4.00 |
| 2026-01-31 | 12.5 | -0.50 |
| 2026-02-08 | 12.3 | -0.40 |
| 2026-03-29 | 10.5 | -10.00 |
| 2024-06-02 | 10.0 | -1.05 |
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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/Lisbon). Updated 19 minutes ago.