Monthly market report
Poland PL — September 2025
Day-ahead auction, 726 settlement periods, computed from the same data the API serves.
Average price
107.47 €/MWh
+17.93 vs previous month
Negative prices
13 hours
13 settlement periods below 0
Avg daily spread
218.99 €/MWh
the arbitrage opportunity, day by day
Volatility (σ)
58.67 €/MWh
Extremes
- Cheapest period
- -58.57 €/MWh Sep 25, 09:00 UTC
- Priciest period
- 446.8 €/MWh Sep 8, 17:00 UTC
Top spike days
- 2025-09-08max 446.8 €/MWh
- 2025-09-19max 423.07 €/MWh
- 2025-09-23max 415.02 €/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 PL
- → 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.