Munich-based battery optimisation company Entrix has raised €43 million in additional capital and has reached 3 GW / 8.5 GWh of contracted battery storage capacity – marking a milestone in their path to leadership in flexible energy trading and optimisation at scale.
The financing was led by energy specialists Junction Growth Investors and Korys, alongside BNP Paribas via its Solar Impulse Venture Fund, insurance company Allianz, AENU, Enpal, Abacon and Arvantis Group.
Steffen Schülzchen, founder and CEO of Entrix, says: “The scale of projects entrusted to us reflects a structural shift in the energy system: flexibility has become critical infrastructure. Our role is to translate technical performance into stable, risk-adjusted revenues for investors while strengthening grid resilience and enabling renewable integration at scale. This milestone underscores the long-term partnerships and operational depth we have built across Europe.”
Munich-based Entrix’s €43 million raise comes amid a broader wave of investment into battery storage, optimisation software and grid-flexibility platforms across Europe.
Recent examples include Terra One (Berlin, €150 million) and Ostrom (Berlin, €20 million), highlighting Germany’s continued prominence in the sector, alongside TWAICE (Munich, €24 million), which operates in battery analytics.
Elsewhere, larger capital deployments into storage infrastructure are illustrated by Return (Amsterdam, €300 million) and iwell (Utrecht, €27 million), while software-led optimisation and trading models comparable to Entrix are represented by Dexter Energy(Amsterdam, €23 million) and Capalo AI (Helsinki, €11 million).
Additional activity spans adjacent flexibility and storage technologies, including Hybrid Greentech (Copenhagen, €15 million), Photoncycle (Oslo, €15 million), and LIFEPOWR (Antwerp, €5.65 million).
In aggregate, these rounds represent roughly €590 million in disclosed funding, or approximately €634 million including Entrix, indicating sustained capital inflows across both asset-heavy storage platforms and software-driven optimisation layers.
Founded in 2021, Entrix is an energy trader and provides solutions for long-term revenue security and grid-supportive battery operation. The company is active across the continent and has 70 battery storage assets under contract (spanning from standalone projects to co-location solar plus battery models), partnering with leading infrastructure players such as Encavis, MEAG (Munich Re), as well as a wide range of local utilities.
With 3 GW of contracted flexible capacity, Entrix operates at a scale equivalent to approximately three nuclear power plants or the peak electricity demand of around three million households.
Of the contracted portfolio, 2 GW will be live and operational within 2026.
According to the company, as renewable penetration accelerates and power markets become increasingly volatile, orchestrating flexibility across markets becomes critical, and increasingly urgent. Europe’s continued exposure to unstable fossil fuel markets, which set marginal power prices across much of the continent, has made accelerating the energy transition not only a climate imperative but also a strategic one.
The need for flexibility is further amplified by the rapid growth of data centres, which require uninterrupted, stable power supply at scale. More broadly, battery storage is becoming the backbone of a fossil-free energy system, bridging the gap between intermittent renewable generation and reliable, around-the-clock power supply.
Entrix’s AI-driven trading and optimisation reportedly enables batteries to respond in real time to price signals, grid needs and portfolio strategies, turning technical flexibility into measurable economic value – aiming to make the energy transition more affordable, greener and more efficient.
Beyond short-term trading, Entrix also structures bankable, investment-grade fixed revenue models across its markets. Working closely with both financial institutions and long-term offtakers such as Deutsche Bahn Energie helps translate flexibility into stable, financeable revenue streams that unlock the investment needed to accelerate the energy transition.
Entrix is active across five European markets, each at a different stage of the energy transition.
- The company operates one of Germany’s first large-scale battery systems and has expanded into co-located models combining renewable generation and storage.
- Entrix entered the Polish market with a local presence in Warsaw and strategic partnerships with developers and investors such as Greenvolt (KKR portfolio company). Its first 5 projects in Poland are scheduled to go live within the course of this year.
- Entrix is also expanding across Italy. The country added more than 5 GW of solar capacity in 2024 alone, increasing price volatility and regional grid congestion between the North and the South. At the same time, recent capacity market auctions have confirmed the growing role of flexible assets in ensuring system adequacy.
- Iberia is one of Europe’s most dynamic renewable power markets. Spain alone has added more than 20 GW of solar capacity in recent years, increasing the need for storage to manage intraday volatility and curtailment risks. The April 2025 Iberian grid blackout also highlighted the critical importance of flexible capacity and advanced balancing services to safeguard grid reliability in an increasingly dynamic system.
With battery storage moving to the center of Europe’s energy architecture, Entrix looks to position themselves play a defining role in shaping the next generation of renewable power markets.
Read the orginal article: https://www.eu-startups.com/2026/03/europes-push-for-resilient-flexible-power-systems-fuels-e43-million-round-for-germanys-entrix/
