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.

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.

Aquila Clean Energy x Entrix Partnership for Two BESS Projects in Germany: 106 MW / 212 MWh

Aquila Clean Energy EMEA has initiated two of the most advanced and largest battery energy storage systems (BESS) in Germany, selecting Entrix to manage the optimization and market participation of these projects as they enter the German market.

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Greenvolt and Entrix sign strategic partnership for 1.3 GW / 5.2 GWh battery storage projects in Poland

Greenvolt Power, part of Greenvolt Group, and Entrix, have signed an exclusive agreement for the optimization and trading of five large-scale battery energy storage system (BESS) projects in Poland, with a total capacity of 1.3 GW and 5.2 GWh.  

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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.

Talk to our Spain team

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