Zone explainer · recomputed continuously
What drives electricity prices in Bulgaria?
Data window: trailing 30 days (mix) and 2026 year-to-date (prices) · recomputed 2026-07-13T23:44Z
107.38
YTD avg €/MWh
156
negative hours YTD
-79.49 / 455.24
YTD min / max €/MWh
volt-3
serving forecast model
The generation mix (trailing 30 days)
BG is a genuinely mixed system with nuclear as the largest recent source (39.7%). No single technology sets the price every hour, so the merit order shifts across the day — renewables' output decides which plant is marginal, and that plant's fuel decides the price. Expect weather-driven volatility layered over a fuel-cost floor.
The zone has cleared negative 156 hours so far this year (live counters on the tracker), inside a year-to-date range of -79.49 to 455.24 €/MWh. Our serving model (volt-3) currently runs 20.6% less error than the naive baseline (backtest, 28 scored days) — verified daily on the public scorecard.
Method. Mix shares from realized generation (ENTSO-E A75, trailing 30 days); price stats from hourly means of published day-ahead auction results (2026 YTD). Every figure recomputes continuously — this page is a query, not an essay with a shelf life. Cite as "Voltcast Research, voltcast.com".