Market-based procurement of reactive power in accordance with Section 12h EnWG

Online procurement calendar

The following procurement regions were established for market-based procurement of reactive power (as of 05/2026):

You can also find the allocation of the individual substations to the procurement regions in tabular form here. 

The phasing of procurement is currently planned or has already taken place as follows:

The above information represents the current, non-binding planning status as of December 2025  and will be updated as required. The specific products, provision periods, requirements and other information relevant to procurement will be published on the website of the respective TSO as part of the announcement at the times specified above.

Procurement and publications:

• 50 Hertz Transmission GmbH (German)
• Amprion GmbH (German)
• TenneT TSO GmbH (German)
• TransnetBW GmbH (German)

Q&A on market-based procurement of reactive power

Here, the four TSOs publish, on a regular basis and in anonymised form, answers to supplier enquiries that are of general interest. Suppliers may address their enquiries to the network operators using the contact details provided below.

The suppliers’ questions are published in tabular form, with each new publication including previous questions and answers. Where necessary, previous answers are supplemented with further details in new publications; this is then indicated separately.

• First publication of supplier questions on August 8, 2025 (in German):
  Q&A Beschaffungsverfahren Blindleistung

Contact to the TSOs

Interested parties are welcome to contact the responsible TSO if they have any questions about the market-based procurement of reactive power:

Further Information (in German)

Determination pursuant to Sections 12h (5), 29 (1) EnWG on the specifications and technical requirements for the transparent, non-discriminatory and market-based procurement of the non-frequency-bound ancillary service “voltage regulation services” (“reactive power”).

Consensus paper on the distinction between non-remunerated and remunerable provision of the non-frequency-related system service (NF-SDL) reactive power, based on technical connection conditions for high and extra-high voltage dated 13 June 2025