2026-07-21Updated 2026-09-09

Twenty-seven hours below zero: DK1's June 2026 negative-price surge

DK1 logged 27 negative-price hours in June 2026, anchoring a contiguous corridor with Germany's 41 and the Netherlands' 50.

By Matthias Blank · drafted with the Vantage newsroom system, approved before publication

Key takeaways

DK1 recorded 27 negative day-ahead price hours in June 2026, a severity-5 reading placing it inside northern Europe's most stressed negative-price corridor that month.
Germany logged 41 negative hours and the Netherlands 50 in the same period. The three zones form a geographically contiguous band of surplus generation.
June falls inside the May–July peak negative-hour season identified in the Vantage calendar, making the signal the sharpest publication moment in the current cycle.
The primary driver is co-incident offshore wind and solar generation; interconnector relief to DE and NO2 did not fully absorb the surplus, though flow data is not yet confirmed.
Assets in DK1 holding unhedged market-price exposure faced at least 27 hours of revenue destruction: any hour where output was sold at the day-ahead price accrued a loss.
Year-on-year baseline for DK1 June 2025 is not yet in the dataset; that comparison, once available, would quantify the scale of the shift.

DK1 recorded 27 negative day-ahead price hours in June 2026, a severity-5 signal placing the zone at the sharp end of a contiguous negative-price corridor that also took in Germany (41 hours) and the Netherlands (50 hours) across the same calendar month.

Photo by Markus Spiske on Pexels.

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