Monthly market report
Bulgaria BG — December 2025
Day-ahead auction, 2,976 settlement periods, computed from the same data the API serves.
Average price
117.25 €/MWh
-4.26 vs previous month
Negative prices
0 hours
0 settlement periods below 0
Avg daily spread
119.07 €/MWh
the arbitrage opportunity, day by day
Volatility (σ)
36.19 €/MWh
Extremes
- Cheapest period
- 15.3 €/MWh Dec 11, 10:00 UTC
- Priciest period
- 392.9 €/MWh Dec 15, 14:15 UTC
Top spike days
- 2025-12-15max 392.9 €/MWh
- 2025-12-03max 355.44 €/MWh
- 2025-12-22max 299.99 €/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 BG
- → 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.