General information

EWE eCap - EWE Gasspeicher GmbH’s sales platform for storage capacities - is an auction portal on which you, as a prospective buyer, can submit bids for capacities and gas volumes in the natural gas storage facilities of EWE GASSPEICHER. The storage capacities are distributed among the natural gas cavern storage facilities in the Jemgum, Nüttermoor and Huntorf salt formations in northwestern Germany and in Rüdersdorf near Berlin. You can submit an offer to EWE GASSPEICHER to conclude a contract. The capacities are distributed transparently and without discrimination.

Since the quantity of natural gas produced is always consistent, the supply contracts that gas producers conclude with companies who forward the gas to consumers are for fixed quantities. The fixed supply quantities do not always suffice to meet weather-related fluctuations in demand. Natural gas storage facilities compensate the resulting difference between consistent production and seasonally and economically varying sales volumes. At the same time, the storage facilities ensure supply security, as they act as a buffer in the event of supply interruptions. The natural gas storage facilities of EWE GASSPEICHER are also connected to national and international L- and H- gas transport networks in the market areas GASPOOL, NetConnect Germany and TTF (Netherlands).

The start page of the EWE eCAP portal is divided into a header, the middle section and a footer. The header contains the navigation items "Login", "Register" and "FAQ". When logging on to the website for the first time, please use the registration field. Already registered users can access the auction portal by login. The middle section of the start page contains the main information on EWE GASSPEICHER and the cavern locations. Here you will again find two navigation fields for login and registration. The field below contains information on the currently running auctions and storage products. The button below also takes you to the RSS feed, and to the link on the far right in the footer. The footer also contains links to the imprint, the privacy policy and the terms and conditions.


Simply click on the navigation point "Register" that will take you to the login page. Registration with EWE eCap is free and enables you to participate in auctions. Your account is activated after a data check. To register, fill in the free input fields. The fields marked with an asterisk (*) are mandatory. After entering your data, create a password, agree to the terms of tender and select the type of e-mails you want to subscribe to. After submitting the registration form, you will receive an e-mail from us in which you can confirm registration.

To log on to the EWE eCAP site you must provide EWE GASSPEICHER with information about your company and yourself as the primary user. The EIC code, the company name, the address (street and house number, postal code, city and country) and the bank details (name of the bank, IBAN, BIC, VAT number) are mandatory information. In addition, you are requested to submit a financial report and/or rating information. The following primary user information is mandatory: the address, first and last name, telephone and mobile number, e-mail address and a power of attorney.

The Energy Identification Code (EIC) is used in European energy trading to uniquely identify individual plants and market partners. Code allocation is coordinated by two central allocation offices. In the gas market, the ENTSO-G is the central allocation point. EWE GASSPEICHER needs this code to uniquely identify your company.

We use your personal data exclusively to activate your user account, to send you confirmation e-mails in the auction process (start, end, placement, change or deletion of a bid and allocation) and for contract processing. Your data will not be passed on to third parties.

More information about data protection by EWE can be found here

To log on to the EWE eCAP site you need to provide your e-mail address and the password you have been assigned.

If you do not receive an automatic reply confirming your e-mail address within one hour of submitting the form please check your "junk mail" folder, as it is possible that our e-mail to you was blocked by the security settings of your computer. If this is the case, please add "@ewe.de" to your "safe senders" list. If the problem persists, please contact us.

If you have forgotten your password, you can click on the "Forgot password?" button on the login page. Enter your email address and we will send you an email in which you can set a new password.

If you have any further questions, please do not hesitate to contact us.