Monthly market report
Sweden Malmö SE4 — September 2025
Day-ahead auction, 726 settlement periods, computed from the same data the API serves.
Average price
63.98 €/MWh
-1.69 vs previous month
Negative prices
7 hours
7 settlement periods below 0
Avg daily spread
145.66 €/MWh
the arbitrage opportunity, day by day
Volatility (σ)
54.08 €/MWh
Extremes
- Cheapest period
- -3.16 €/MWh Sep 21, 12:00 UTC
- Priciest period
- 405.85 €/MWh Sep 8, 17:00 UTC
Top spike days
- 2025-09-08max 405.85 €/MWh
- 2025-09-09max 376.74 €/MWh
- 2025-09-04max 336 €/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 SE4
- → 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.