ESS & Juniper Energy Sign Agreement for 500 MWh+ of Sodium-Ion Energy Storage Deployments

by | Jul 27, 2026 | Energy

ESS & Juniper Energy Sign Agreement for 500 MWh+ of Sodium-Ion Energy Storage Deployments

ESS Tech, Inc., a provider of non-lithium energy storage solutions, announced the signing of a Letter of Intent with Juniper Energy LLC to deploy 500 MWh or more of sodium-ion battery energy storage systems across multiple projects over the coming years. The agreement represents a significant development for ESS as it advances its market presence in alternative battery technologies.

The initial phase of the collaboration centers on a 10 MW / 80 MWh energy storage project in California utilizing ESS’s Bridge modular sodium-ion AC solution, along with an Energy Management System. This first project is scheduled for commercial operation in 2027. Juniper Energy has indicated its intent to procure 500 MWh or more of ESS battery systems by 2032, contingent on successful project execution and continued development.

ESS’s leadership highlighted the significance of the partnership, noting it validates the company’s strategy to expand its technology offerings and bring sodium-ion storage to market. The agreement reflects growing customer interest in safer, domestically produced alternatives to conventional lithium-ion batteries. Juniper Energy emphasized confidence in ESS’s capacity to integrate, deploy, and scale advanced energy storage solutions for broader adoption.

The sodium-ion technology employed by ESS utilizes abundant materials and aims to reduce exposure to geopolitical supply chain vulnerabilities and foreign entity concerns while supporting domestic energy infrastructure. ESS identifies substantial opportunities for its non-lithium solutions across utility-scale storage, AI data centers, commercial and industrial facilities, and critical infrastructure applications.

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