We offer a comprehensive portfolio
of services connected with
gas storage

Our primary service is the provision long-term storage capacity, which we offer through transparent auctions or direct sales in accordance with applicable legislation. Customers may reserve working gas volume, including the associated injection and withdrawal capacities, based on their commercial needs. The specific parameters of individual products and the conditions for their allocation are always published in the terms of the relevant auction or, where applicable, the terms of the direct sale. More information about the conditions and the capacity reservation process can be found in the General Booking Terms.

The Additional daily working gas volume provides extra storage capacity beyond the scope of a standard storage contract. The product is available in several variants, allowing customers greater flexibility in managing their storage portfolio. Injection and withdrawal capacities are not included and may be booked separately, subject to availability. Product availability and the maximum booking period should be consulted in advance with the MND Gas Storage Dispatching. Pricing details are available in the Price List.

• Daily firm working gas volume
  

  The Daily firm working gas volume offers guaranteed additional storage capacity. Registered customers may submit booking requests through the nomination portal. Customers can select the start and duration of the booking according to their operational needs and available capacity. Requests are processed in the order they are received. 
  
  

• Daily interruptible working gas volume
  

  The Daily interruptible working gas volume provides additional storage capacity on an interruptible basis and is available to both new and existing customers throughout the storage period. Under certain operational circumstances, the storage operator may interrupt part or all of the booked capacity following prior notice. In such cases, customers are required to release the specified portion of the reserved volume. Charges apply only for the period during which the booked working gas volume is utilized and do not include any fixed fee.
  
  

• Temporary interruptible counterflow product
  

  The Temporary interruptible counterflow product is a variant of the Daily interruptible working gas volume which is discounted when gas is nominated in the direction opposite to the flow of the virtual storage facility. The product is offered for a limited period and subject to available capacity. Applicable charges are specified in the Price List. Current availability is shown in the table below:

Additional daily rates may be reserved regardless of the parameters of the valid storage contract. A reservation request may be submitted either through the nomination portal or by e-mail. The minimum reservation period is one gas day. Capacity availability and the maximum reservation period must be consulted in advance with the MND Gas Storage Dispatching. An indicative overview of the capacities available for the following gas day can be found in the Available Daily Firm/Interruptible Capacity section. Requests are processed in the order in which they are received. The prices for additional capacities are specified in the valid Price List.

• Additional daily firm rate
  

  Represents firm injection or withdrawal capacity expressed in MWh/day. This capacity may not be interrupted by MND Gas Storage.
  
  

• Additional daily interruptible rate
  

  Represents additional injection or withdrawal capacity expressed in MWh/day reserved on an interruptible basis. In the event of operational necessity, this capacity may be interrupted by MND Gas Storage. In the event of a reduction in interruptible capacities, priority is determined according to the acceptance timestamp, with requests submitted later having a lower priority and therefore being curtailed first.

For selected products, storage capacity may also be offered with an option that provides customers with greater flexibility when deciding how to utilize their reserved capacity. In such cases, by paying the so-called option premium, the customer is entitled to reject part or all of the storage capacity under the conditions specified in the relevant storage contract.

More information about the option conditions and the capacity reservation process can be found in the General Booking Terms.

Inverse Storage is a special product that enables customers to reserve storage capacity already filled with gas. The customer may initially withdraw and use this gas for their commercial needs, while ensuring its return before the expiration of the contract.

Storage capacity assignment

Storage capacity assignment provides a flexible way to transfer all or part of your capacity to another market participant. The process is carried out based on a written request and subject to meeting the applicable requirements, including the demonstration of the new shipper’s financial standing and submission of KYC documentation. Standard transfers are completed within predefined timelines, while accelerated processing may be arranged upon individual agreement. Thanks to a transparent process and robust contractual framework, capacity transfers offer a secure and efficient solution for optimizing trading activities and storage portfolio management.

Transfer of use of storage capacity

Transfer of use of storage capacity means that an existing storage user allows another storage user to use a specified part of their storage capacity without any amendment to the storage contract. Following the transfer of use of the contracted storage capacity, the original entity remains the contractual party vis-à-vis MND Gas Storage. The transfer of use of contracted storage capacity is not subject to approval by the storage operator and is only recorded for evidential purposes.

Gas transfer

Gas may be transferred between individual contracts of the same customer or between different customers on the basis of a written instruction, provided that the conditions set out in the Gas Market Rules and the relevant contractual provisions are met. Any gas transfer is subject to the approval of MND Gas Storage. In the event of differences in the parameters of fees related to gas storage services between the respective contracts, the transferor shall be charged the fee applicable under the contract to which the gas is being transferred, as if the transferred gas had been injected under that contract. If such fee under the receiving contract is lower than under the original contract, the difference shall not be refunded to the transferor.

The prices of individual services are listed in the Price List.

Operators of underground gas storage facilities and storage users using gas storage services must report specific data relating to the quantity of gas in the storage facility to ACER (Agency for the Cooperation of Energy Regulators) based on Regulation of the European Parliament and of the Council No 1227/2011 on wholesale energy market integrity and transparency (REMIT) and Commission Implementing Regulation (EU) No 1348/2014 on REMIT. Storage users have an obligation to report to ACER the quantity of gas they have stored in each virtual gas storage facility at the end of a Gas Day. If you are interested, we can send these data based on a concluded Agreement on the Fulfilment of the Reporting Obligation According to REMIT on your behalf. We provide this service completely free of charge.

In the event a storage user is interested in selling their reserved storage capacity, they can contact our commercial dispatching, which distributes the information to other customers. For this purpose the storage user can use our auction system and offer their capacity to other entities in one of the auctions described in section Auction Types.

You can see the current secondary sale offers in the table below: