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A precondition for a participation in the tenders for control energy is a successful pre-qualification. In principle, the pre-qualification is taken care of by the transmission system operator (TSO) to whose control area the relevant technical unit is connected (connecting TSO). 50Hertz endeavours to pre-qualify as many potential suppliers for the different types of control reserve as possible. Further information can be found at www.regelleistung.net.

Pre-qualification documents

The current framework agreements can be found under Downloads on the www.regelleistung.net web page. The pre-qualification documents have to be filled in completely and signed in a legally binding manner:

  • for primary and secondary control reserve: annexe D1 or annexe D2 to the Transmission Code and specific pre-qualification documents of 50Hertz
  • for tertiary control reserve: annexe D3 to the Transmission Code, including the attachments thereto.
Please send the documents to the following address:

50Hertz Transmission GmbH
Heidestrasse 2

D-10557 Berlin

Should you have any further questions related to the pre-qualification procedure or the framework agreements, please send an e-mail to the following address: energiebeschaffung@50hertz.com.

50Hertz reserves the right to adjust or update this information.

Pre-qualification requirements

The pre-qualification requirements are contained in the Transmission Code 2007 ("Netz- und Systemregeln der deutschen Übertragungsnetzbetreiber"). Chapter 5 "System Services" contains the general requirements, annexes D1-D3 the detailed requirements for the different types of control reserve: PCR, SCR or TCR. These documents are also available on the website, regelleistung.net.


50Hertz Transmission GmbH

Heidestraße 2
10557 Berlin
Tel: +49 30 5150-0
E-Mail: info@50hertz.com

Control capacity