Redefining Energy6 Okt 2025

198. Battery Blitz in Germany - Oct25

Germany is experiencing a battery blitz. The market is expected to triple from 2GW to 6GW in less than two years. To give a bit of context, Zach Williams from Modo Energy, gives us the big picture and fundamentals of the German battery market.

Legacy developers have not yet been able to catch that wave, but newcomers have. We bring on one those new pioneers, Philipp Man, CEO of Terralayr.

In less than three years, Philipp has managed to set up a company which operates or currently builds 150MW of batteries in Germany; more importantly he has managed to sign some of the first tolling agreements with heavyweights such as Vattenfall and RWE. His approach combines medium size batteries (10-30MW) rather than gigantic ones.

The Vattenfall-Terralayr deal is a pioneering seven-year, 55 MW multi-asset capacity tolling agreement for a decentralized fleet of battery energy storage systems (BESS) across Germany, announced in May 2025. Described as an industry-first "virtual battery tolling structure," it marks a significant shift from traditional single-asset tolling models, enabling scalable and flexible energy storage solutions without significant capital investment from Vattenfall.

With Philipp, we dissect his lightspeed approach in a seemingly bureaucratic environment, we analyse how he has been to put assets on the ground so fast, and his approach to commercialisation of flexibility combining hard assets and a digital layer.

We discuss the price formation of tolling agreements, the “tranching” of capacity and how he sees the future. Is Terralayr a tech company? Is it an infrastructure play? Well, a bit of both.

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Episoder(196)

237. Datacenters: "Let’s get Physical" with Quinbrook - Jul26

Gerard and Laurent first welcomed David Scaysbrook to the podcast in Episode 66, back in January 2022, for a conversation about the future of 24/7 power. Four years later, it felt like the right momen...

13 Jul 31min

236. The Bankability of Energy Storage (Solar Power Summit) - Jul26

In May 2026, our co-host Laurent Segalen had the privilege of chairing a high-profile panel hosted by SolarPower Europe at its annual Solar Power Summit in Brussels, one of the leading gatherings for ...

6 Jul 26min

235. European Sovereign Neocloud - Jun26

Gerard and Laurent welcome Michel Boutouil, co-founder and CEO of Polarise, a leading European AI infrastructure provider and NVIDIA Cloud Partner based in Berlin. After discussing about what happens ...

29 Jun 32min

234. Engie, the remarkable turn around (live from Eurelectric Power Summit) - Jun26

At the Eurelectric Power Summit 2026 in Helsinki, Laurent had the opportunity to sit down with Catherine MacGregor, CEO of ENGIE and Vice President of Eurelectric, for a wide-ranging discussion on the...

22 Jun 27min

233. To predict the future, “In BNEF we Trust” - Jun26

The International Energy Agency (IEA) and the International Renewable Energy Agency (IRENA) have made significant progress in recent years. Yet they remain largely top-down institutions shaped by poli...

15 Jun 28min

232. GB’s NESO: the “cool” operator - Jun26

Gerard and Laurent have the pleasure of welcoming Fintan Slye, CEO of NESO — Great Britain’s National Energy System Operator. In a lively and wide-ranging discussion, we explored NESO’s governance an...

8 Jun 29min

231. Car Wars: China vs. the West - Jun26

The global auto industry is splitting into two very different worlds — what legendary auto expert Michael Dunne calls “a tale of two countries.” Dunne, CEO of Dunne Insights LLC, has spent decades at ...

1 Jun 32min

230. The growing complexity of battery fleet management - May26

The BESS market is growing at a phenomenal pace. You would think battery management is becoming easier. The reality? It is becoming increasingly complex. Between data risks, a growing number of suppl...

25 Mai 30min