Monthly market report
Spain ES — August 2026
Day-ahead auction, 2,968 settlement periods, computed from the same data the API serves.
Average price
118.11 €/MWh
+13.23 vs previous month
Negative prices
37.3 hours
149 settlement periods below 0
Avg daily spread
204.21 €/MWh
the arbitrage opportunity, day by day
Volatility (σ)
75.82 €/MWh
Extremes
- Cheapest period
- -2.1 €/MWh Aug 23, 10:15 UTC
- Priciest period
- 268.97 €/MWh Aug 13, 19:15 UTC
Top spike days
- 2026-08-13max 268.97 €/MWh
- 2026-08-14max 252.5 €/MWh
- 2026-08-12max 250 €/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 ES
- → 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.