In this episode, David Hunt discusses the key insights from the Hyperion Q4 Market and Talent Review, highlighting the significant shifts in the cleantech sector during 2025. The conversation covers the maturation of the industry, the focus on execution over exuberance, and the evolving demands for leadership and talent across various sectors, including energy storage, EVs, and renewables. The episode also touches on the challenges faced by hard tech and the implications for the future as the market prepares for 2026.

Takeaways

• 2025 was a year of maturity in cleantech.
• The focus has shifted from technology to execution.
• Nearly 50% fewer companies reached seed to Series A rounds.
• Talent demand is focused on operational discipline and execution.
• AI-driven optimization is becoming crucial in mobility.
• Solar has overtaken coal as the EU's largest electricity source.
• The pilot to readiness gap in hard tech is widening.
• Boards need to be operator-led for effective scaling.
• Talent markets are becoming more selective with higher expectations.
• The next phase of the transition is about delivery, not invention.
• Navigating the Cleantech Landscape: Insights from Hyperion
• 2025: The Year Cleantech Matures

Sound Bites

• "The pilot to readiness gap is widening."
• "Boards need operators, not just advisors."
• "AI becomes invisible infrastructure."

Chapters

00:00Introduction to the Hyperion Q4 Review

01:212025: A Year of Maturity in Cleantech

03:20Energy Storage and Grid Market Insights

05:09EV and Future Mobility Developments

07:01Renewables: Milestones and Talent Trends

08:35Challenges in Hard Tech and Funding

09:55Looking Ahead: Key Themes for 2026

Links

• Hyperion Q4 Market and Talent Review - https://hyperionsearch.com/market-reviews/
• Net Zero Insights -State of Cleantech 2025 - https://stateofclimatetech.com/

About Hyperion Search:

At Hyperion Search, we specialize in building world-class teams for the cleantech and energy transition sectors. We focus on leadership roles but also recruit strategically critical individual contributors who drive business growth. Whether you’re a founder scaling a startup, a board member guiding a scaleup, a VC/PE investor, or a corporation committed to energy and mobility transitions, we find the talent that will deliver impactful, sustainable results.

• Linked In: https://www.linkedin.com/company/hyperion-search-ltd
• Website: www.hyperionsearch.com

Follow us online, write a review (please) or subscribe

I'm very keen to hear feedback on the podcast and my guests, and to hear your suggestions for future guests or topics. Contact via the podcast Linked In page.

If you do enjoy the podcast, please write a review on iTunes, or your usual podcast platform, and tell your cleantech friends about us. That would be much appreciated.

• LinkedIn: https://www.linkedin.com/in/david-hunt-cleantech/

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• LinkedIn: https://www.linkedin.com/company/leaders-in-clean...

Devrim Celal– Kraken

In this episode of Leaders in Cleantech, David Hunt is joined once again by Devrim Celal, Chief Flexibility & Marketing Officer at Kraken, nearly six years after their first conversation in 2019—back when Devrim was CEO of Upside Energy.

Since then, Upside Energy was acquired by Octopus Energy and evolved into Kraken, now one of the world’s leading energy technology platforms, serving tens of millions of customers and optimising flexible power at global scale.

Rather than a linear success story, Devrim reflects on the last decade as a series of distinct phases: early uncertainty, pivotal strategic pivots, the acquisition decision, rapid scaling within Octopus, and now Kraken’s transition into a fully independent global company.

The conversation explores leadership at scale, the reality of building culture through growth, the trade-offs founders face between conviction and adaptability, and what the future holds for flexibility, storage, EVs, data centres and grid optimisation.

This is a thoughtful, honest discussion about long-term impact, not short-term hype—and what it really takes to build enduring companies in the energy transition.

Devrim Celal:
Devrim is the Chief Flexibility and Marketing Officer at Kraken. Overseeing Kraken’s flexibility and product capabilities, the cloud-based flexibility platform controls and optimizes distributed energy resources such as batteries of all sizes, EVs, solar and wind generation or heat pumps with machine learning and AI to match electricity supply and demand, helping the electricity grid deal with the natural volatility of renewable generation. Kraken is currently contracted to manage over 42 GW of power.

Previously, Devrim was the CEO of Upside Energy, which was acquired by Kraken in 2020. Before starting Upside Energy, Devrim’s professional career saw him take up executive roles with blue chip management consultancies and finance companies such as Publicis Sapient, Kearney and Lansdowne. He also holds an MBA from Yale University. In 2023, Devrim joined the Elexon Board, which manages the Balancing and Settlement Code of Great Britain’s energy system, as a Non-Executive Director.

About Kraken:
Vienna-based innovator enspired is known for pioneering automated energy trading and Kraken is the most-loved operating system for energy.

Powered by Utility-Grade AI™ and deep industry expertise, we

About Hyperion Search:

At Hyperion Search, we specialize in building world-class teams for the cleantech and energy transition sectors. We focus on leadership roles but also recruit strategically critical individual contributors who drive business growth. Whether you’re a founder scaling a startup, a board member guiding a scaleup, a VC/PE investor, or a corporation committed to energy and mobility transitions, we find the talent that will deliver impactful, sustainable results.

• Linked In: https://www.linkedin.com/company/hyperion-search-ltd
• Website: www.hyperionsearch.com

Follow us online, write a review (please) or subscribe

I'm very keen to hear feedback on the podcast and my guests, and to hear your suggestions for future guests or topics. Contact via the podcast Linked In page.

If you do enjoy the podcast, please write a review on iTunes, or your usual podcast platform, and tell your cleantech friends about us. That would be much appreciated.

• LinkedIn: https://www.linkedin.com/in/david-hunt-cleantech/

Also follow the podcast and to stay up to date.

• LinkedIn: https://www.linkedin.com/company/leaders-in-clean...

In this episode of Leaders in Cleantech, I speak with Juergen Mayerhofer, CEO and co-founder of enspired, the Vienna-based company using fully automated, AI-driven trading to optimise flexible power assets – especially grid-scale batteries – across multiple European markets.

Juergen shares how he stumbled into energy via Austrian gas market liberalisation, fell in love with physical energy systems, and eventually founded enspired in early 2020 with the simple but powerful idea that flexibility is the key resource for integrating more renewables. We talk about how the company has scaled from its first pump storage and thermal assets in Germany to managing ~5 GW of flexibility (including over 1.3 GW of batteries), now active across ten markets and expanding into new geographies.

We dig into why enspired thinks like a software and R&D company rather than a classic trading house, how they use automation, machine learning and reinforcement learning in practice, and why they’ve chosen to publish independently verified revenue performance instead of leaning on AI buzzwords. Juergen also reflects on the realities of founding just before COVID, expanding rapidly across borders, and building a diverse, high-performance culture designed to move into new countries in weeks, not years.

About Juergen Mayerhofer:

enspired CEO and co-founder Juergen Mayerhofer holds an MBA in energy management and has worked in the energy sector for over 20 years, contributing to the expansion of renewables in the grid in various expert positions. Under his bold and devoted leadership, enspired evolved from a small-scale startup with a workforce in the single digits into a successful institution with global recognition. As an enthusiast and first mover in BESS optimization, Juergen is a highly respected and trusted figure in his field as well as the power industry at large.

About enspired:

Vienna-based innovator enspired is known for pioneering automated energy trading and cross-market battery storage optimization across Europe with an advanced technical infrastructure running on billions of data points, AI, machine learning, and reinforcement learning. The self-developed optimization platform is operated 100% in-house, which makes it highly flexible in adapting to new markets and changing market conditions. By optimizing the power assets of their customers across all available energy markets, enspired unlocks essential flexibili

About Hyperion Search:

At Hyperion Search, we specialize in building world-class teams for the cleantech and energy transition sectors. We focus on leadership roles but also recruit strategically critical individual contributors who drive business growth. Whether you’re a founder scaling a startup, a board member guiding a scaleup, a VC/PE investor, or a corporation committed to energy and mobility transitions, we find the talent that will deliver impactful, sustainable results.

• Linked In: https://www.linkedin.com/company/hyperion-search-ltd
• Website: www.hyperionsearch.com

Follow us online, write a review (please) or subscribe

I'm very keen to hear feedback on the podcast and my guests, and to hear your suggestions for future guests or topics. Contact via the podcast Linked In page.

If you do enjoy the podcast, please write a review on iTunes, or your usual podcast platform, and tell your cleantech friends about us. That would be much appreciated.

• LinkedIn: https://www.linkedin.com/in/david-hunt-cleantech/

Also follow the podcast and to stay up to date.

• LinkedIn: https://www.linkedin.com/company/leaders-in-clean...