ESS Inc. designs, builds, and deploys iron flow batteries for commercial and utility-scale energy storage applications worldwide. The company provides energy warehouse and energy center solutions, which uses earth-abundant iron, salt, and water for the electrolyte and energy storage solutions. Its products are used for various applications, including utility scale, microgrids, distributed energy management systems, virtual power plants, and commercial and industrial organizations. The company was founded in 2011 and is headquartered in Wilsonville, Oregon.