Berlin, 25 February 2025 – Learnings from Mikko Preuß's panel discussion at the Energy Storage Summit 2025

To toll ot not to toll - is that the Billion-Euro question?

Last week at the Energy Storage Summit 2025, Mikko joined the panel on how to hedge volatile BESS revenues through tolling.

Five take-aways:

1. Tolling is the talk of (battery) town - but deals are rare.
Despite lots of curiosity from developers, asset managers, and off-takers, few deals have been signed in Germany so far. Pricing remains a challenge, especially for long-term contracts.

2. Lack of scalable standards
Structures vary (virtual vs. physical, full stack vs. DA/ID only) and contracts (long-form) are often still customized first-time efforts.

3. The devil is in the detail
Questions around risk/responsibility-split are often underrated during the “indicative bid” phase. Be prepared to become best friends with your legal advisor.

4. Small BESS, big problem
For stand-alone, small/mid-sized assets, it is tough to find competitive offers in the market. Big, bankable counterparties are not comfortable with too much fragmentation and prefer the big tickets. terralayr can help here!

5. Does tolling have a big future? We think yes!
Optimization of the BESS risk profile in order to unlock low-cost sources of capital is one of the major challenges of the BESS asset class. Revenue-derisking will become a core consideration for many developers and asset managers.

Check out Energy-Storage.news’ article covering the discussion here.

Thanks to all panelists for the great insights! Adam Carver (Eku Energy), Kieron Stopforth (Octopus Energy), Ben Potter (Energy Dome), Stefan Schlueter (EDF Trading) and our great moderator Mark Futyan.

Photos by Solar Media Limited (part of Informa Markets)