Expert Exchange - Flexibilisation and repurposing of coal-fired power plants

Expert Exchange - Flexibilisation and repurposing of coal-fired power plants

🎙 Just Transition in Coal Regions Knowledge Hub 👥 107 📅 October 7, 2025 ⏱ 88 min 👁 97 📄 expert opinion 🧭 2026-08-15
Available in: English (current) Français

Keywords

flexibilisationrepurposingcoal-fired power plantsrenewable energyenergy system modeling

Summary

This expert exchange, hosted by the IKI JET project, explores the flexibilisation and repurposing of coal-fired power plants in the context of increasing renewable energy penetration. The session begins with an introduction to the project and its focus on just transition in coal regions. The first presentation by DLR researchers outlines a systemic approach to assessing flexibility options, using energy system modeling (REMIX) to evaluate the role of specific coal plants in future scenarios. They emphasize the importance of broad scenario analysis and stakeholder engagement. The second presentation by VGBE provides practical insights from Germany, where high renewable shares have driven the need for flexible operation of coal plants, including minimum load reduction, faster ramp rates, and two-shift operation. The discussion covers technical parameters, operational challenges, and the potential for repurposing coal sites. The event aims to inform policy and investment decisions for a just energy transition, highlighting the need to balance technical feasibility, economic viability, and social considerations.

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Critical Evaluation

Value of the Information & Strength of the Argument

The video provides valuable insights into the technical and systemic aspects of coal plant flexibilisation. The DLR presentation offers a rigorous methodological framework for assessing flexibility options, emphasizing the importance of scenario analysis and systemic indicators. The VGBE presentation contributes practical experience from Germany, illustrating real-world challenges and solutions. The argumentation is solid, grounded in expert knowledge and ongoing research, though the lack of final results limits the conclusiveness. The discussion is balanced, acknowledging both opportunities and risks, such as potential emission lock-in. The value lies in its comprehensive overview, making it useful for stakeholders in coal regions.

Scientific Rigor, Source Quality, Title Accuracy

The video demonstrates scientific rigor through the involvement of established institutions like DLR and VGBE. The DLR presentation references their in-house modeling tools and publicly available data, enhancing traceability. The VGBE presentation uses German energy data to support its points. However, specific sources are not explicitly cited during the talks, and the ongoing nature of the study means results are preliminary. The title accurately reflects the content, which is well-structured and focused. The discussion is expert-led, with no apparent bias, and the inclusion of multiple perspectives strengthens its credibility.

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Title / Content Match

The title accurately reflects the content, which focuses on flexibilisation and repurposing of coal-fired power plants from multiple perspectives.

Quality & Reliability

7/10

The video features expert presentations from recognized institutions (DLR, VGBE, Inodú) and provides a balanced overview of technical, economic, and systemic aspects of coal plant flexibilization. However, it is an ongoing study without final results, and the discussion is largely qualitative, with limited peer-reviewed sources cited.

Key Moments

Cited Sources

  • IKI JET Project — Mentioned as the hosting project and platform for just transition in coal regions.
  • DLR Institute of Energy Systems — Presented by Jürgen Kern and Andreas Moya, focusing on energy system analysis.
  • VGBE Energy e.V. — Presented by Dr. Claudia Visor, providing operational experience on flexibilisation.
  • Inodú — Chilean consultancy, represented by Jorge Moreno and Victoria Furik, contributing country-specific insights.

Concurring Sources

  • IEA: Flexibility in Clean Energy Transitions — Supports the need for flexible operation of power systems with high renewable shares.
  • VGBE: Flexibilisation of Power Plants — Provides industry perspective on technical feasibility and operational experience.

Dissenting Sources

  • Coal plant repurposing may not always be economically viable — Some studies suggest that repurposing coal plants may not be cost-effective compared to alternatives like new renewables and storage, depending on market conditions.

Contribution & Novelties

The video contributes to the discourse on coal plant flexibilisation by integrating systemic modeling with practical operational experience. It highlights the importance of context-specific analysis and stakeholder engagement in assessing flexibility options. The ongoing study by DLR aims to provide a comprehensive framework for evaluating the feasibility of different repurposing strategies across multiple countries.

Pour aller plus loin :

  • Flexibilisation of coal-fired power plants — IEA report on flexibility in clean energy transitions, relevant for understanding system-level needs.
  • REMIX model — DLR’s REMIX modeling framework, used in the study, for those interested in technical details.
  • Just transition in coal regions — IKI JET project platform, offering resources and publications on just transition.

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Radar Profile

The radar profile shows balanced scores across all dimensions, with slightly higher scores in information quantity and reliability, reflecting the expert-led nature of the content. The technical level is moderate, making it accessible to a broad audience while still providing depth.

Reliability 7/10

💬 No comments were provided for analysis.