Implementation concept

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In accordance with Section 13k(6) of the Energy Industry Act (EnWG), transmission system operators (TSOs) are required to develop an implementation plan and submit it to the Federal Network Agency (BNetzA) for review. The implementation plan sets out the key framework conditions for the use of this instrument.

For the two-year trial phase (1 October 2024 to 30 September 2026), the Implementation Plan 1.0 applies, whilst Implementation Plan 2.0 will apply to competitive tenders from 1 October 2026 onwards.

The TSOs, in consultation with the relevant stakeholders, drew up the implementation concepts within the specified timeframe and submitted them to the Federal Network Agency (BNetzA) for review.  The BNetzA has completed its review of both concepts, concluding that, in their specific form, the submitted implementation concepts are suitable, for their respective periods of application, for effectively reducing the curtailment of electricity from installations in accordance with Section 3(1) of the Renewable Energy Sources Act and for not compromising grid and system security.

The TSOs’ implementation plans, as well as a report by Frontier Economics, are available for download as PDF files to all interested parties:

Implementation Concept 2.0 (effective from 1 October 2026)

Following the expiry of the two-year trial phase, the daily competitive tenders provided for in the Act will commence on 1 October 2026. The TSOs, together with the BNetzA and the BMWE, presented the adjustments to the framework conditions required for this – compared to the trial phase – to interested parties and potential participants at an information event on 22 January 2026 (Information session to present the target model from 1 October 2026(in German)). The subsequent feedback from the industry was then taken into account as far as possible and set out in a revised implementation concept (“Implementation Concept 2.0”). This was published on 1 April 2026 following review and approval by the BNetzA. Implementation Concept 2.0 is valid from 1 October 2026.

Implementation Concept 1.0 (valid up to and including 30 September 2026)

For the two-year trial phase running from 1 October 2024 to 30 September 2026, the TSOs agreed on and implemented Implementation Plan 1.0. Implementation Concept 1.0 was published on 1 April 2024, in accordance with the deadline and following confirmation by the BNetzA. During the trial phase, minor adjustments based on operational implementation findings were incorporated into a revised Implementation Concept 1.1.

When drafting the plan, the TSOs did not confine themselves to the minimum requirements of Section 13k of the Energy Act (EnWG), but actively engaged with the industry to gather relevant perspectives on the subject. Furthermore, the industry was extensively involved in the drafting process and kept informed about the plan’s design (see presentations from previous information events: Information events). In addition, Frontier Economics was commissioned by the TSOs to review the remuneration framework they had drawn up in an expert report. Frontier Economics concluded that the remuneration concept presented is in line with the objectives of Section 13k of the Energy Act (EnWG) and that economic and energy-sector aspects are appropriately taken into account. Implementation Concept 1.0 applies to the trial phase starting on 1 October 2