Terralayr launches ‘ETF’ model for battery storage: Parallel trading by multiple optimizers on single assets

Swiss-based flexibility provider Terralayr has launched what it calls the “world’s first risk-adjusted portfolio effect for storage operators” with its “Enhanced Trading of Flexibility” (ETF) marketing approach, and is designed to mimic the risk-spreading benefits of Exchange Traded Funds (also known as ETFs) in financial markets.

The system is currently being deployed with three competing optimizers, Entrix, Suena, and The Mobility House, who share capacity on identical storage assets to trade across intraday markets and ancillary services. The selection of the three companies involved was said to have been made through a tender process that included live testing.

The core of the offering is Terralayr’s cloud-based platform called Layr which virtualizes the physical battery. This allows capacity to be dynamically reallocated between different optimizers, without the need for new contracts or physical hardware changes. The platform aggregates the dispatch signals from all three providers and allocates them to the physical asset, ensuring technical limits are respected.

A major technical benefit of this parallel operation is the “netting-off” effect. Because the dispatch schedules of different optimizers often offset one another, where one might signal a charge while another signals a hold or discharge, the platform can reduce the number of physical cycles the battery performs. This creates a “virtual” transaction layer that preserves battery health and reduces degradation compared to running a single, aggressive strategy.

For asset owners, the primary driver is risk management. By diversifying across multiple trading strategies, investors can avoid the “vendor lock-in” risk associated with choosing a single route-to-market provider.

“Our conviction is that asset owners need professional risk management tools. We enable them to manage their commercialization like a portfolio manager in the financial market,” says Philipp Man, Founder and CEO of terralayr.

“We are solving what capital providers fear most: the binary risk of betting on a single trading strategy. With our multi-optimizer model, asset owners diversify their merchant risk across the best optimizers. This elimination of performance risk is the next logical step in the professionalization of the European storage market.”

From pv magazine Germany.