Is the flexibility gap holding back Europe’s energy transition?

Is the flexibility gap holding back Europe’s energy transition?

🎙 Ed Porter, Dario Hernandez 👥 25K 📅 November 20, 2025 ⏱ 44 min 👁 2K 📄 expert opinion 🧭 2026-08-15
Available in: English (current) Français

Keywords

flexibility gapbattery storageco-locationmarket designrenewables

Summary

In this episode of Transmission, Ed Porter interviews Dario Hernandez, Head of Energy Storage at NextEnergy Capital, about the flexibility gap in Europe’s energy transition. They discuss how rapid solar deployment is outpacing the grid’s ability to manage volatility, leading to deeper price swings and negative prices. Hernandez explains the role of battery storage, both standalone and co-located with solar, in providing flexibility and grid stability. He highlights the synergies between solar and storage, the importance of market design and regulatory frameworks, and the challenges of grid connection and permitting. The conversation covers specific markets like the UK, Spain, and Chile, comparing their storage deployment and regulatory environments. Hernandez emphasizes the need for regulatory reform to facilitate co-location and the liberalization of ancillary services. He also discusses the potential for batteries to provide voltage control and frequency response more cost-effectively than thermal plants. The episode concludes with insights on investment strategies and the future of dispatchable renewable energy.

158 words

Critical Evaluation

Value of the Information & Strength of the Argument

The value of the information is high, offering practical insights from an industry insider on the challenges and opportunities in energy storage. The argumentation is solid, based on real-world examples and market observations. Hernandez effectively argues that co-location is undervalued and that regulatory barriers hinder its adoption. He provides concrete examples, such as the UK’s grid connection reform and Spain’s recent legislation, to support his points. The discussion is balanced, acknowledging both the benefits and complexities of storage deployment.

Scientific Rigor, Source Quality, Title Accuracy

The scientific rigor is moderate; the conversation is based on professional experience rather than formal research. Sources are not explicitly cited, but the guest’s role at NextEnergy Capital lends credibility. The title accurately reflects the content, focusing on the flexibility gap. The episode does not delve into academic literature, but the practical knowledge shared is valuable for understanding current market dynamics.

155 words

Title / Content Match

The title accurately reflects the central theme of the flexibility gap in Europe's energy transition, as discussed throughout the episode.

Quality & Reliability

8/10

The discussion is grounded in the professional experience of a senior energy storage investment lead, with concrete examples and market data. However, it is primarily an opinion-based conversation without formal citations or peer-reviewed sources, and some claims are not independently verified.

Key Moments

Cited Sources

  • NextEnergy Capital — Company website of the guest's employer, providing background on their operations.

Concurring Sources

  • NextEnergy Capital — The company's focus on solar and storage aligns with the episode's themes.

Contribution & Novelties

The episode provides a practitioner’s perspective on the flexibility gap, emphasizing the undervalued potential of co-located solar-plus-storage projects. It highlights specific regulatory barriers and market differences across Europe and Chile, offering actionable insights for investors and policymakers.

Pour aller plus loin :

78 words

Radar Profile

The radar profile shows high scores in quantity and quality of information, with slightly lower technical level and reliability, reflecting the practical, experience-based nature of the content.

Reliability 7/10

💬 No comments were provided for analysis.