Uniper Energy Storage GmbH (UST) offers storage capacities in its Etzel EGL storage facility for the residual storage year 2025/2026 at fixed price
Etzel EGL Mid Churn RoSY 2025/26
- Offered capacity: 100 storage bundles are available, each with 20 GWh WGC (in total 2,000 GWh).
- Bundle structure:
Firm working gas capacity 19.000 GWh Firm withdrawal rate 21.183 MWh/h Firm injection rate 12.678 MWh/h Interruptible working gas capacity 1.000 GWh Conditional withdrawal rate 13.300 MWh/h Conditional injection rate 6.100 MWh/h
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We have made an adjustment to the curve in Annex I of the storage contract. With this, we are trying to enable our customers to fill the storage with extended conditional injection rate by August. Customers can therefore use an increased injection rate per bundle on a conditional basis for a limited time:
From 9 to 25 August 2025, up to 50 MWh/h will be available
From 25 August to 1 September 2025, up to 35 MWh/h will be available
From 1 September to 1 April 2026, the already known injection curve will be available.
Existing customers must note that their already booked capacity in August will not be additionally available. - Technical Restrictions: Need to be considered. Average filling level of 55% from 1 September 2025 until 1 April 2026.
- Storage connection: H-Gas market area Trading Hub Europe (THE).
- Duration: 9 August until 1 April 2026. The setup of new customers can take up to 10 working days.
- Fixed price: Gas storage capacities are offered at a fixed price.
- Flextime period: The auction runs on 8 August 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 publishments of the German Regulator. Currently 80% 1 November 2025 and 30% 1 February 2026.
We are looking forward to your participation!
