Battery storage becomes system-relevant – increasing market dynamics and growth in flexibility and commercialization

Market growth in Europe and Germany

In Germany, several million BESS are now installed, making the market a central pillar of the energy system. In recent years, the number of storage installations has increased continuously, driven primarily by declining system costs and growing demand from industry, commerce, and private households. Installed storage capacity is also continuing to grow significantly in Germany and across Europe at a comparable pace.

Drivers of growth

Several key factors are contributing to the expansion of battery storage:

The increasing share of renewable energy in the power mix leads to more volatile generation, requiring short-term flexibility.

Declining BESS costs improve economic viability, particularly in combination with PV systems or charging infrastructure.

BESS open up new economic opportunities, for example through participation in flexibility, arbitrage, or grid services markets.

These developments underline that BESS are increasingly regarded as a core component of a flexible energy system. In particular, when combined with renewable generation assets, they can be used economically beyond pure self-consumption.

Co-location and hybrid storage solutions gaining importance

Market observations show that co-located and multi-use storage projects – combining PV systems, BESS and charging infrastructure – are being implemented with increasing frequency. Such concepts enable multiple revenue streams and address different market requirements. They are considered a decisive step toward economically viable and technologically integrated energy assets.

BESS as a contributor to system stability

The role of BESS goes beyond pure energy storage: thanks to their ability to absorb and supply power at short notice, they can respond to volatile prices on the demand side. At the same time, they offer opportunities to generate additional revenues beyond self-consumption, for example through the commercialization of flexibility or participation in energy markets.

Outlook

With the continued growth of the storage market and the increasing adoption of hybrid applications, the importance of high-performance platform solutions that make flexibility economically and reliably usable is rising. For marketers, electricity suppliers and virtual power plant operators, integrating BESS into commercialization processes is increasingly becoming a strategic necessity.

About Energiekoppler

Energiekoppler is a technology-neutral provider of Virtual Power Plants. We focus on efficiently integrating assets – in particular generation plants (wind, PV), BESS, PV-BESS hybrids and flexible loads – into market processes, simplifying access to flexibility markets for marketers and electricity suppliers and enabling optimal utilization.

Live at E‑world energy & water 2026:

Energiekoppler – Flexibility Plant, Hall 4 | Booth 4E107