Yes! 🔋 💪💪 78 GW von 500 GW GROSSBATTERIEN genehmigt! XXL-Akkus J.Bammert/M.Schmid | Geladen Podcast

Yes! 🔋 💪💪 78 GW von 500 GW GROSSBATTERIEN genehmigt! XXL-Akkus J.Bammert/M.Schmid | Geladen Podcast

🎙 Geladen - Batteriepodcast zur Energiewende 👥 63K 📅 December 14, 2025 ⏱ 40 min 👁 43K 📄 expert opinion 🧭 2026-08-16
Available in: English (current) Français

Keywords

battery storagegrid stabilitytransmission networkelectricity market zonesrenewable energy

Summary

In this episode of the Geladen podcast, hosts Daniel Messling and Patrick von Rosen interview Dr. Jochen Bammert and Marina Schmid from TransnetBW, one of Germany’s four transmission system operators. The discussion covers the challenges and opportunities of integrating large-scale battery storage into the grid. They reveal that 40 GW of battery storage connection approvals have already been granted, with a total of 500 GW in requests, and emphasize the need for faster approval processes and better system integration. The guests discuss the ‘communication problem’ of network operators, the complexities of grid planning and approval procedures, and the importance of flexibility for grid stability. They also address the controversial topic of splitting Germany’s single electricity price zone into multiple bidding zones, which TransnetBW opposes, arguing that it may not create the intended investment incentives. The episode includes insights into grid operations, such as the increasing frequency of redispatch measures and the challenges of forecasting renewable generation. The guests also highlight pilot projects like OctoFlexBW, which uses electric vehicle flexibility for grid stabilization. The conversation underscores the need for a balanced approach to ensure supply security while advancing the energy transition.

190 words

Critical Evaluation

Value of the Information & Strength of the Argument

The podcast provides valuable insights into the operational and strategic perspectives of a transmission system operator regarding battery storage and grid integration. The guests present concrete data, such as the 40 GW of approved battery connections and the 500 GW of requests, which underscores the scale of the transition. Their arguments are well-structured, explaining the technical and regulatory challenges, such as the outdated connection procedures and the need for system-friendly operation of storage. The discussion on electricity price zones is particularly valuable, as it presents a nuanced view from the network operator’s perspective, challenging common assumptions. The hosts also contribute by asking pointed questions and providing critical commentary, which adds depth to the argumentation. However, the perspective is inherently that of the network operator, so the argumentation may not fully represent other stakeholders’ views.

Scientific Rigor, Source Quality, Title Accuracy

The scientific rigor is high, with guests from a major TSO providing detailed technical and regulatory information. The sources cited include a study on electricity price zones from the Baden-Württemberg Ministry of the Environment, a press release about the OctoFlexBW pilot project, and a previous podcast episode with 50Hertz. These are relevant and credible. The title accurately reflects the main topic of battery storage approvals, though it emphasizes the 78 GW figure, which is mentioned in the episode as part of the 500 GW requests. The title is somewhat sensational but not misleading. The content is well-aligned with the title, focusing on large battery storage and grid integration.

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Title / Content Match

The title highlights the approval of 78 GW of large battery projects, which is a key topic discussed in the episode, though the focus is broader on grid integration and market design.

Quality & Reliability

8/10

The podcast features experts from TransnetBW, a major transmission system operator, providing detailed insights into grid operations, battery storage integration, and regulatory challenges. The discussion is grounded in specific data and references, though it represents the perspective of the network operator.

Key Moments

Cited Sources

Concurring Sources

Dissenting Sources

Contribution & Novelties

This episode provides a rare insider perspective from a transmission system operator on the integration of large-scale battery storage. It offers concrete numbers on connection approvals and requests, and discusses the operational challenges of grid management with increasing renewable penetration. The discussion on electricity price zones presents a nuanced view that challenges common assumptions, adding depth to the ongoing debate. The episode also highlights innovative pilot projects like OctoFlexBW, which demonstrate practical approaches to using flexibility for grid stability.

Pour aller plus loin :

  • Electricity market — Provides background on market design and price zones.
  • Battery storage power station — Overview of large-scale battery storage technology.
  • Redispatch — Explanation of grid management measures.
  • Capacity mechanism — Discusses mechanisms to ensure supply security.

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Radar Profile

The radar profile shows high scores in information quantity, quality, and reliability, with a slightly lower technical level. This indicates a well-informed discussion with practical insights, though the technical depth is moderate, making it accessible to a broad audience.

Reliability 8/10

💬 Positive and engaged. On the 30 comments analyzed, the audience appreciates the expert guests and the hosts' critical questioning, with many comments focusing on the electricity price zone debate and the role of network operators.