Entrix reaches 3 GW of storage – an additional 43 million euros for Europe's flexibility market

The Munich-based energy tech Entrix The company has secured contracts for 3 gigawatts (GW) or 8.5 gigawatt hours (GWh) of battery storage capacity across Europe, with final investment decisions (FIDs) already made, and will receive an additional 43 million euros from an investor consortium. Of this, 2 GW are scheduled to go online in 2026 – a signal that flexibility in the European electricity market is evolving from a future-oriented topic to an investable infrastructure.

What's remarkable is not so much the sheer size of the secured battery storage capacity, but rather the logic behind it: Entrix positions itself not primarily as a traditional project developer, but as a software and trading platform for marketing battery storage systems across multiple electricity markets. This addresses a key bottleneck in Europe's energy transition, because with the expansion of volatile solar and wind power capacities, the demand increases for storage systems that can process price, grid, and balancing energy signals in real time.

Founded in 2021, the company now operates more than 70 battery storage systems in Europe, according to its own statements – from standalone systems to co-location projects with solar energy. Local teams and offices in Germany, Italy, Spain, and Poland are intended to ensure regulatory proximity in the core markets.

43 million euros for battery optimization, trade and expansion

The additional capital comes from BNP Paribas via the Solar Impulse Venture Fund, Allianz, Junction Growth Investors, Korys, Aenu, Enpal, Abacon, and the Arvantis Group. Entrix plans to use the funding for its European expansion and the further technological development of its optimization and trading platform.

For the Pursue The combination of capital and contractually secured storage capacity is strategically important: While many energy startups initially communicate their reach or pilot projects, Entrix simultaneously announces financial backing and assets ready for FID certification. This increases the credibility of the model with project developers, infrastructure investors, and long-term customers. This assessment is a conclusion drawn from the parallel timing of the financing round and the FID-secured portfolio.

3 GW of battery storage capacity as a signal for Europe's flexibility market

With 3 GW of flexibility under contract, Entrix has reached a scale that stands out in the European storage market. Battery storage is becoming increasingly relevant not only for arbitrage between day-ahead and intraday markets, but also for balancing power, grid stability, and the improved integration of renewable energies. Entrix describes its model accordingly as AI-powered multi-market optimization that allows batteries to react to market and grid signals in real time.

Market trends support this positioning. In Italy, according to Italia Solare, 6.8 GW of new PV capacity was installed in 2024, further increasing the pressure on grids and the importance of flexibility options. In Spain, installed solar capacity reached 50 GW by the beginning of 2026; according to grid operator REE, around 8.7 GW was added in 2025 alone.

The issue of grid stability received additional attention following the Iberian blackout of April 28, 2025, in which Spain and Portugal experienced a widespread power outage. According to Entso-E, the incident underscored how sensitive highly dynamic power systems can be to disruptions and how crucial resilient, flexible capacities are becoming.

Five core markets: Germany remains central, Poland and Iberia are growing rapidly

Germany remains Entrix's most important market in terms of capacity. The company points out that it operated one of the country's first large-scale battery storage systems and is increasingly focusing on co-location models with renewable energy generation. Customers mentioned include Meag and Encavis.

Poland is developing in parallel with the important growth market. There, Entrix had already signed an exclusive agreement with Greenvolt Power in 2025 for five large battery storage projects with a combined capacity of 1.3 GW / 5.2 GWh. This demonstrates that the Eastern European market for energy storage is increasingly being developed by institutional investors.

Italy, Spain, and Portugal also fit the Munich-based company's growth strategy: rapid expansion of solar energy, increasing price volatility, and regional grid bottlenecks make battery storage more economically attractive there. For optimization specialists like Entrix, this is a favorable environment because the value of a storage system arises precisely from its intelligent participation in multiple markets.