E22’s cost effective flow batteries are the best partner to make the renewable revolution a reality.

Our technology

We provide innovative solutions based on our own advanced control, design and programming systems.

We develop products aimed at improving the quality and efficiency of renewable energy plants and provide power electronics solutions for PV applications, energy storage systems, reactive compensation and voltage control.

Vanadium Redox Flow Battery (VRFB) by E22 Energy Storage Solutions


Flow batteries can provide a full range of power (kW) and energy (kWh) applications from the  very same unit: all-in-one. Vanadium Redox Flow Batteries can perform from short to long duration, including simultaneously service for ramping and frequency regulation. Also system provide the advantage of no state-of-charge 100% SOC, 100% net energy and no duty cycle limitation.

As a remarkable feature of the VRFBs, power and energy are decoupled, enabling maximum system flexibility.

No other technology can match the advantages of E22’s Redox batteries.

About us

E22 Energy Storage Solutions blends the perfect combination of young enthusiastic engineers and long term experts in solar energy technology, product engineering and construction.

As an integrated company, E22 appeared on the energy market scene towards the end of 2014 by leveraging our engineering strengths and industrial capabilities.

To guarantee our reliability, E22 products are verified by third-party entities and validated by recognized engineers and scientists, all together with a flexible supply chain, including our own cost-competitive stacks and BOP fabrication facility.

E22 Energy Storage Solutions container in our facilities in Valencia
Leyte photovoltaic plant at Phillippines uses E22 technology for Energy Storage

Our mission

In E22 we strongly advocate for large–scale storage solutions that are robust, proven and bankable, cost effective, long lasting and easy-to-build. Vanadium Redox Flow Battery (VRFB) is our technology and the Fastrack Product Development our methodology. Our products are designed to deliver the lowest total cost of installation along with industry leading reliability.

Contact us for more info!

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