Monthly market report
Ireland (SEM) IE-SEM — November 2025
Day-ahead auction, 720 settlement periods, computed from the same data the API serves.
Average price
122.79 €/MWh
+25.77 vs previous month
Negative prices
0 hours
0 settlement periods below 0
Avg daily spread
134.42 €/MWh
the arbitrage opportunity, day by day
Volatility (σ)
70.3 €/MWh
Extremes
- Cheapest period
- 2.13 €/MWh Nov 3, 04:00 UTC
- Priciest period
- 465.05 €/MWh Nov 25, 16:00 UTC
Top spike days
- 2025-11-25max 465.05 €/MWh
- 2025-11-06max 386.87 €/MWh
- 2025-11-17max 350.62 €/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 IE-SEM
- → 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.