Monthly market report
Portugal PT — June 2025
Day-ahead auction, 720 settlement periods, computed from the same data the API serves.
Average price
74.38 €/MWh
+48.53 vs previous month
Negative prices
10 hours
10 settlement periods below 0
Avg daily spread
120.34 €/MWh
the arbitrage opportunity, day by day
Volatility (σ)
49.44 €/MWh
Extremes
- Cheapest period
- -1.21 €/MWh Jun 22, 13:00 UTC
- Priciest period
- 210 €/MWh Jun 16, 19:00 UTC
Top spike days
- 2025-06-16max 210 €/MWh
- 2025-06-23max 195.77 €/MWh
- 2025-06-18max 194.56 €/MWh
Work with this data
- → Full 15-minute history via API (2015 onwards)
- → Battery arbitrage backtest against this month's prices
- → Live forecast accuracy for PT
- → Embed the live price chart on your site — free
Data source: ENTSO-E Transparency Platform (transparency.entsoe.eu). Data source: SMARD.de, Bundesnetzagentur | CC BY 4.0. Derived statistics are Voltcast own-IP output.