Newsletter No 272: Auction Etzel ESE Fast Churn for SY2026/27 at fixed prices at 25 November 2025

Uniper Energy Storage GmbH (UST) offers storage capacities in its Etzel ESE storage facility for storage year 2026/2027 at a fixed price.

Etzel ESE Fast Churn 

• Offered capacity: 100 storage bundles are available, each with 20 GWh WGC (in total 2 TWh).

• Bundle structure:

  Firm working gas capacity	17.682 GWh
  Firm withdrawal rate	29.412 MWh/h
  Firm injection rate	27.932 MWh/h
  Interruptible working gas capacity	2.318 GWh
  Interruptible injection rate	3.854 MWh/h

• Flexibility: The structure enables a usage with an injection within 35 days and a withdrawal within 34 days, resulting in a churn rate of 5.29.
   
• Technical restrictions: Need to be considered.
   
• Storage connection: H-Gas market area Trading Hub Europe (THE) and Title Transfer Facility (TTF). Please note that the document Supplemental Agreement Oude was updated for the optional connection to TTF.
   
• Contract duration: 1 April 2026 until 1 April 2027. 
   
• Fixed price: The gas storage capacities are offered at a fixed price.
   
• Timing: The auction runs on 25 November 2025 between 11 and 12 hours in Storage Portal of UST.
   
• Terms of participation: Bids can only be submitted via the UST Storage Portal. Please register as an "Advanced User" on time and complete the licensing form in the "My Account" section to participate in the auction.
   
• Additional information: All relevant information and contract documents are available in our published auction on the UST storage portal. 
   
• Please note: The Filling Level Regulations have been revised. Please also check the publications of the German Regulator. Currently, the limits are 80% on November 1, 2025 and 30% on February 1, 2026.

For questions or comments, the familiar contacts are available at any time.

We are looking forward to your participation!