Your battery storage specialist in Spain and across Europe
Spain's battery storage market is evolving fast and your asset needs a BESS specialist to keep up. We at Entrix are your route-to-market and optimization partner for grid-scale flexible projects in Spain backed by a dedicated team in Madrid.
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Entrix in Spain: We unlock the full potential of your BESS
Entrix in Spain: Local expertise. European scale. BESS specialization.
Battery storage requires orchestrating multiple revenue streams and markets at once, and no human-first approach can keep up. That is why your battery needs a dedicated BESS specialist, one that pairs technology with algorithmic trading to keep your asset at its full potential. We were built from day one to do exactly that.
As a European BESS specialist with a local team in Madrid, we combine international scale with on-the-ground knowledge of the Spanish market.
3 GW+
of battery capacity under contract across Europe.
130+
professionals, two thirds in product and technology
5
markets: Germany, Spain, Italy, Poland, and Portugal
Trusted by leading European developers and investors, including companies active in Spain such as Greenvolt and Aquila.
Battery storage optimization: Built for a different kind of complexity.
Battery storage assets are complex and dynamic which demands active, intelligent management every minute of the day.
Multiple revenue streams, all at once
Batteries can access day-ahead, intraday, and ancillary markets (aFRR, mFRR, RR, voltage control) simultaneously, all subject to technical restrictions specific to each asset. Optimal positioning shifts constantly with market prices and battery degradation constraints, missing these windows forfeits revenue.
Battery-specific complexity
Every asset has technical limits that must be respected at all times: degradation management, warranty compliance, cycle limits, and state of charge. These are not administrative details, they directly determine how much your asset earns and what the optimal market strategy is.
The answer: technology and full service, end to end
Maximizing battery performance requires more than a smart algorithm. We combine AI-powered optimization with a full-service market representation offering, supporting your project across every phase, from business case and bankability through onboarding, commissioning, live trading, and daily reporting.
Full-service BESS optimization: From first permit to live operations.

Before your asset is live
From day one, we bring market knowledge to the table, advising on battery sizing, revenue potential, and financing. As projects develop, we navigate the Spanish regulatory landscape (OMIE, REE, CNMC) to ensure smooth prequalification and permitting.

Once your asset is operational
Our algorithm operates your battery in real time across all relevant Spanish energy markets; day-ahead, intraday, and ancillary services. Every dispatch is automated, refined continuously, and traceable. We monitor around the clock, respond to grid signals instantly, and report on revenues and technical KPIs.

Offtake and bankability
We partner with offtakers to offer bundled day-ahead swap plus optimization contracts, giving Spanish developers and lenders a bankable, integrated solution for merchant battery projects.
Entrix offers more than just trading
Maximum revenues across all markets
Achieve maximum revenues across wholesale and ancillary service markets with our market-leading optimization.
Tailored solutions for your project
Innovative add-on modules such as Entrix FloorPlus for secured revenues or Entrix LocalFlex for grid-friendly operations.
Advisory, onboarding and more
Technical, regulatory, and operational services: from advisory and onboarding to 24/7 monitoring and reporting.
Market-leading performance for your battery storage
Talk to our Spain team
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