Monthly market report
Ireland (SEM) IE-SEM — June 2026
Day-ahead auction, 720 settlement periods, computed from the same data the API serves.
Average price
135.54 €/MWh
-8.26 vs previous month
Negative prices
0 hours
0 settlement periods below 0
Avg daily spread
111.54 €/MWh
the arbitrage opportunity, day by day
Volatility (σ)
50.27 €/MWh
Extremes
- Cheapest period
- 5.54 €/MWh Jun 28, 11:00 UTC
- Priciest period
- 407.26 €/MWh Jun 24, 19:00 UTC
Top spike days
- 2026-06-24max 407.26 €/MWh
- 2026-06-23max 293.89 €/MWh
- 2026-06-14max 293.62 €/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.