A modular sodium-ion battery energy storage system (BESS) designed for utilities, AI-driven data centers, critical infrastructure operators, and commercial and industrial customers seeking superior alternatives to conventional lithium-ion technologies.
The Energy Transition Needs Better Storage.
ESS, Inc. delivers non-lithium energy storage solutions designed for safer, more reliable energy infrastructure.
Our Story
Improving Upon Today's Energy Storage Model.
Energy stakeholders have asked for more and ESS, Inc. is delivering: integrated energy storage solutions that address the shortcomings of today’s most common battery systems.
From AI data centers requiring short duration batteries to large-scale, long duration renewable energy integration, ESS offers safer, more robust systems that deliver reliable energy and long-term value.
Our Solutions
Integrated Energy Storage Solutions.
Bespoke iron flow energy storage system (BESS) designed for large-scale utility customers, microgrid operators, and energy transition stakeholders seeking long-duration energy storage to maximize the value of high renewable energy grid penetration.
Command, ESS, Inc.’s plant OS, provides energy management and control, including advanced monitoring, optimization, and control across energy assets.
From real time performance management to fleet-level optimization, it enables smarter operation, greater availability, simplified maintenance, and improved long-terms performance.
OUR TECHNOLOGY
Innovative Technologies for Reliable Energy Storage.
Sodium-Ion Battery Technology
Sodium-ion batteries provide a safer, more robust, and sustainable alternative to lithium-ion technology for short- and medium-duration energy storage.
Made from abundant materials, they reduce reliance on constrained critical minerals and support more resilient supply chains, including those emerging the U.S. Their ability to operate across a wide range of conditions with reduced cooling requirements makes them well suited for utilities, data centers, commercial facilities, and critical infrastructure applications.
Iron Flow Battery Technology
Iron flow batteries are designed for long-duration energy storage, delivering reliable power for 20 hours or more with minimal degradation over decades of operation.
Using abundant materials and a non-flammable, water-based electrolyte, they offer a safer and more sustainable solution with no risk of fire from thermal runaway. Their long life and scalable design make them ideal for renewable energy integration, grid resilience, microgrids, and energy security applications.
Our benefits
Smarter Energy Storage.
Flexible Solutions
ESS, Inc. delivers flexible, modular solutions for short- and long-duration energy storage, optimising performance and economic returns.
Expert Integration
Leveraging experience integrating and deploying non-lithium systems, ESS, Inc. is uniquely qualified to support stakeholders across the energy ecosystem.
Robust Temperature Performance
ESS's non-lithium systems can operate in a wide range of temperatures without complicated HVAC systems or complex liquid cooling—improving performance and reducing maintenance.
Long Design Life
Augmentation represents a significant risk for project developers and asset owners. ESS designs systems for a 20-year (or more) lifespan, reducing project complexity and increasing long-term value.
Safer by Design
Non-lithium technology improves safety and reduces risk by reducing or eliminating the threat of catastrophic battery fires.
Our Markets
Energy Solutions Built for Evolving Markets.
AI-driven Data Centers.
ESS’s sodium-ion battery solutions are designed to meet the growing power demands of AI data centers with a safer, more robust, and scalable alternative to lithium-ion systems.
For short-duration applications, ESS’s high-power systems support UPS replacement, ride-through power, peak demand management, and backup power while reducing fire safety concerns and cooling requirements. For medium-duration applications, ESS’s modular energy storage system, Bridge, provide 2 to 16 hours of energy shifting, renewable integration, and grid support, helping operators lower energy costs, improve resilience, and maximize available power capacity.
Built from abundant materials via an emerging U.S.-based supply chain and designed for long service life, ESS sodium-ion solutions deliver the flexibility and security needed to support AI-driven growth.
Utility Energy Transition.
ESS’s sodium-ion battery solutions empower the Energy Transition by providing safer, flexible energy storage for renewable power integration, zero-carbon energy systems, and grid modernization.
Designed for 2 to 16 hours of storage, ESS systems can capture excess solar and wind generation, shift energy to periods of peak demand, and provide capacity, reliability, and ancillary grid services.
Their long service life, abundant materials derived from an emerging U.S.-based supply chain, and reduced safety and cooling requirements make them an attractive alternative to conventional lithium-ion batteries for utilities, independent power producers, and microgrid operators seeking to deliver more robust, resilient, and affordable power.
Commercial & Industrial Sites.
ESS, Inc.’s sodium-ion battery solutions enable commercial and industrial customers to improve energy resilience, lower electricity costs, and support sustainability goals.
Designed for 2 to 16 hours of storage, these systems can reduce demand charges, shift energy use away from peak pricing periods, integrate onsite renewable generation, and provide backup power for critical operations.
Their safer, non-lithium chemistry, reduced cooling requirements, and long service life make them well suited for manufacturing facilities, distribution centers, oil and gas sites, agricultural operations, and other energy-intensive businesses seeking greater control over energy costs.
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Energy Forum
News
investing.com
ESS Signs 500 MWh Deployment Agreement
ESS has signed a Letter of Intent with Juniper Energy for the deployment of 500 MWh or more of sodium-ion battery energy storage systems, marking a significant commercial milestone for the company’s growing non-lithium energy storage portfolio. The agreement establishes a framework for long-term collaboration, beginning with a…
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ESS to Accelerate Sodium-Ion Battery Energy Storage System Development Following Surging Customer Interest
ESS is accelerating the development of its sodium-ion battery platform following exceptional customer demand across AI-driven data centres,…
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interestingengineering.com
How Bridge™ Is Shaping the Future of Energy Storage.
As demand for reliable, large-scale energy storage continues to grow, ESS’s Bridge™ platform is attracting industry attention for…
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time.com
ESS Named a Top GreenTech Company by TIME
ESS has been recognized by TIME and Statista as one of the World’s Top GreenTech Companies for 2026,…
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