Sales process

It is important to note that this plan follows a rolling schedule. For instance, starting in storage year 2026, services can be contracted through storage year 2031.

We already welcome exploratory discussions with market participants interested in long-term services starting beyond storage year 2030. Our Commercial Advisors are ready to support you in securing long-term certainty.

To better meet the needs of our diverse customer base, we offer two distinct service types:

Hourly Flex services

For market participants seeking maximum flexibility, our firm Hourly Flex services enable renominations and profiled nominations within the day. These services come with a fixed capacity ratio and capacity curves and variable working gas volume:

• Storage injection: 0.67 MWh/h
• Injection curve: 24 hours/d
• Storage withdrawal: 1 MWh/h
• Withdrawal curve: 16 hours/d
• Working gas volume: 1–480 MWh

The Hourly Flex service is perfect for multi-cycle use. Capacities are available 24/7 on both TTF and Flange. These services include limited short lead time rights: 35 minutes on TTF and 30 minutes on Flange. Unlimited renomination rights apply as well as profiled nominations to give full within day flexibility. Hourly Flex services can be contracted bilaterally for both short-term and long-term durations.

Please note that a one-year service can only be requested for the upcoming storage year, with sales starting in the summer of the preceding year. In contrast, multi-year services may also be contracted for future periods, such as a three-year service covering storage years 2028 through 2030.

Trading services

Our firm Trading services are designed to generate value through tradable products. These services support day-ahead nominations, with a flat intra-day profile. Both injection and withdrawal capacity can be used 24 hours per day. Our Trading services are available on TTF.

Trading services are one-year services that begin at the start of the next storage year. They are auctioned annually in autumn via the PRISMA platform. Only the remaining available capacity and working gas volume for the upcoming storage year will be auctioned. The configuration of the service depends on the capacity and volume still available at the time of the auction.

Interruptible capacity and working gas volume will be offered to the market when firm bundles are sold out.

To find a complete overview of all our services, please go to Services.

Contact our Commercial Advisors and discuss your needs. Upon request, they can also provide you with a non-binding price indication. If, after consultation, you wish to proceed:

• Requests for Hourly Flex services with a duration of more than one year can be submitted at any time.
• Requests for Hourly Flex services with a duration of one year, starting the following storage year, can be submitted after EnergyStock publishes a news update on its website. This is expected to occur annually around the summer period. Requests for storage year 2026 may be submitted as of 22 September.
• All requests will be processed on a first-come, first-served basis. Please find our request process below.

Simply download the ‘official Hourly Flex service request for a quotation’ form at the bottom of this page and email the completed form to info@energystock.com.

Conditions and relevant notes:

• If you are not a customer, you will be required to also submit a signed Declaration of Acceptance (DoA).
• Only one request for a quotation per customer can be submitted at a time.
• Upon receipt of your request, we will verify the request and if approved, you will receive the timestamp based on the email's received date and time.
• Modifying a request results in a new timestamp.
• Requests are processed in order of their timestamps.
• Once processed you will receive an offer for the requested Hourly Flex service.
• Offers are valid for five working days.
• General Terms & Conditions 2025 are applicable.
• An Hourly Flex service must fit the fixed ratio of SI: 0.67 MWh/h; SO: 1 MWh/h and Working Gas Volume: 1-480 MWh.