The Sun Company Develops Zinc-Iodide Batteries for Energy Storage

The Sun Company, led by Joley Michaelson, is introducing zinc-iodide flow battery technology to the energy storage sector. Founded in 2017, the company now operates as a public benefit corporation with a broad renewable energy focus. Michaelson, formerly with Tesla/SolarCity, established The Sun Company after identifying limitations in lithium-ion for stationary applications. The company aims to provide accessible and dependable energy storage solutions. Despite facing funding constraints, with $7 million in equity, The Sun Company has secured clients like Albertsons and Safeway. These partnerships underscore the demand for reliable energy storage. The company's approach addresses perceived gaps in current market offerings. Michaelson stated her belief that lithium-ion was not the ultimate solution for stationary energy storage needs. This perspective guided the development of their alternative technology. The global energy storage market is experiencing significant expansion. Projections indicate growth from $66.47 billion in 2025 to $293.59 billion by 2032. The Sun Company's efforts position them within this expanding market. Their work focuses on mass adoption of renewable energy systems. The company's strategy involves building an integrated ecosystem to support this goal.