Due to persistently unfavorable market conditions, 6.2 TWh could not be marketed and in accordance with the legal regulations offered for booking and filling by Trading Hub Europe (THE)
Uniper Energy Storage GmbH operates a porous rock storage facility in Breitbrunn in southern Germany in addition to the storage facility in Bierwang. Porous rock storage facilities are mainly used to cover seasonal capacity need, as they usually have a large storage volume, but the gas can be stored and withdrawn more slowly than in the Uniper cavern storage facilities in northern Germany due to the geological conditions.
After several failed attempts to market the storage capacity, the new filling level target for the Breitbrunn storage facility (80% on 1 November), which came into force on 6 May 2025 by way of an ordinance (GasSpFüllstV) of the Federal Ministry for Economic Affairs and Energy (BMWE), can no longer be reliably achieved with regard to the physical injection capacity for 2025.
Uniper Energy Storage GmbH still has a free capacity of 6.2 TWh in the Breitbrunn storage facility for the current storage year 2025/26, which could not be marketed due to permanently unfavorable market conditions. Even at the last auction on May 7, 2025, there was insufficient demand despite the recent increase in the summer-winter spread.
The critical filling path for the fixed portion of this free capacity, from which continuous storage would have had to be carried out to secure the filling level target for Breitbrunn, began on May 22, 2025. Uniper Energy Storage GmbH has offered this capacity to Trading Hub Europe GmbH (THE), which is responsible for the market area, in good time for booking and filling. So far, no measures have been taken in accordance with Section 35 c (2) of the EnWG.
After several failed attempts to market the storage capacity, the new filling level target for the Breitbrunn storage facility (80% on 1 November), which came into force on 6 May 2025 by way of an ordinance (GasSpFüllstV) of the Federal Ministry for Economic Affairs and Energy (BMWE), can no longer be reliably achieved with regard to the physical injection capacity for 2025.
Uniper Energy Storage GmbH still has a free capacity of 6.2 TWh in the Breitbrunn storage facility for the current storage year 2025/26, which could not be marketed due to permanently unfavorable market conditions. Even at the last auction on May 7, 2025, there was insufficient demand despite the recent increase in the summer-winter spread.
The critical filling path for the fixed portion of this free capacity, from which continuous storage would have had to be carried out to secure the filling level target for Breitbrunn, began on May 22, 2025. Uniper Energy Storage GmbH has offered this capacity to Trading Hub Europe GmbH (THE), which is responsible for the market area, in good time for booking and filling. So far, no measures have been taken in accordance with Section 35 c (2) of the EnWG.
