Zone explainer · recomputed continuously
What drives electricity prices in Norway Trondheim?
Data window: trailing 30 days (mix) and 2026 year-to-date (prices) · recomputed 2026-08-28T01:11Z
81.85
YTD avg €/MWh
2.3
negative hours YTD
-0.53 / 364.24
YTD min / max €/MWh
volt-6sa
serving forecast model
The generation mix (trailing 30 days)
NO3 is a hydro-dominated zone (82.2% of recent generation). Prices here move on water: reservoir filling levels set the opportunity cost of every MWh, so weekly hydrology matters more than daily weather. Dry spells lift the whole price level for months; wet ones sink it. Day-to-day volatility is usually low — until a regime shift arrives, at which point prices can re-level in days (as the July 2026 Nordic jump showed). Interconnector flows to thermal neighbours set the ceiling and floor.
The zone has cleared negative 2.3 hours so far this year (live counters on the tracker), inside a year-to-date range of -0.53 to 364.24 €/MWh. Our serving model (volt-6sa) currently runs 4% less error than the naive baseline (live, 19 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".
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