ESS

ESS

Knoxville, TN, United States
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About

ESS, Inc. provides long-duration iron flow battery systems for utility-scale and commercial projects, including Energy Warehouse and Energy Center products. Their systems offer 4–22 hours of storage for grid support and renewable energy integration, with a 20,000+ cycle life and non-toxic, environmentally safe technology.

Quick Facts

Founded
2011
Team Size
2000+
Funding
Private
Last Updated
Apr 21, 2026