Monthly market report
Norway Oslo NO1 — September 2025
Day-ahead auction, 2,880 settlement periods, computed from the same data the API serves.
Average price
51.04 €/MWh
-10.23 vs previous month
Negative prices
3 hours
12 settlement periods below 0
Avg daily spread
56.27 €/MWh
the arbitrage opportunity, day by day
Volatility (σ)
24.97 €/MWh
Extremes
- Cheapest period
- -18.75 €/MWh Sep 22, 22:00 UTC
- Priciest period
- 190.82 €/MWh Sep 9, 06:00 UTC
Top spike days
- 2025-09-09max 190.82 €/MWh
- 2025-09-08max 182.69 €/MWh
- 2025-09-29max 124.07 €/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 NO1
- → 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.