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

Etzel EGL Fast Churn 2026/27

• Offered capacity: 46 storage bundles are available, each with 20 GWh WGC (in total 920 GWh).

• Bundle structure:

  Firm working gas capacity	18.000 GWh
  Firm withdrawal rate	23.700 MWh/h
  Firm injection rate	16.570 MWh/h
  Interruptible working gas capacity	2.000 GWh

  
   
• Flexibility: The structure enables a usage with an injection within 55 days and withdrawal within 82 days, resulting in a churn rate of 2.66.
   
• Technical Restrictions: Need to be considered. Please see Annex II of the Storage Contract. 
   
• Storage connection: Trading Hub Europe (THE).
   
• Contract Duration: 15 April 2026 until 1 April 2027. The setup of new customers can take up to 10 working days. 
   
• Fixed price: Gas storage capacities are offered at a fixed price.
   
• Reduced Variable Storage fee: Please consider the reduced variable storages fee - based solely on injections - of 0 Euro/MWh for the first churn of the product until 1 August 2026. More details are provided in the storage contract in Article 3
  Section 4.
   
• Timing: The auction runs on 9 April 2026 between 14 and 15 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: Please consider the existing Filling Level Regulations for cavern storages. Currently 80% by 1 November 2026 and 30% by 1 February 2027.

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

We are looking forward to your participation!