URE Publishes Results of Poland's Supplementary Capacity Market Auction for 2027 Delivery Year, Securing 7.48 GW

The Polish energy regulator (URE) published the outcome of the supplementary capacity market auction for the 2027 delivery year, conducted by transmission system operator PSE on 3 September 2026. 152 winning offers (144 domestic, 8 foreign) secured over 7.48 GW of capacity obligations at a closing price of 325.55 PLN/kW/year for domestic and most foreign units, while cross-border units connected to Sweden's transmission system secured 152 MW at 298.35 PLN/kW/year.

This supplementary auction result confirms additional secured capacity for the 2027 delivery year, reinforcing Poland's resource adequacy framework under its capacity remuneration mechanism. The inclusion of a cross-border segment with Swedish transmission-connected units demonstrates growing integration of foreign capacity into Poland's market, with differentiated pricing reflecting the distinct risk/value profile of interconnected capacity versus domestic units.

The auction concluding in the 5th round at 325.55 PLN/kW/year (domestic/most foreign) versus 298.35 PLN/kW/year (Sweden-connected units) reveals a price differential of roughly 8.4% between domestic and cross-border capacity remuneration, likely reflecting differences in delivery reliability guarantees, congestion risk, or contractual terms specific to the Swedish interconnection segment. With supplementary volume (7.48 GW) supplementing the main auction outcome for delivery year 2027, this event provides a concrete data point on capacity market pricing dynamics and the operational scale of cross-border capacity market cooperation under the Polish capacity market law. The relatively small foreign participation (8 of 152 winning offers, 152 MW of the 7.48 GW total) indicates cross-border capacity market integration remains at an early, limited stage relative to domestic procurement.

Ustawa o rynku mocy (Polish Capacity Market Act)

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Primary sources