Halide Energy (former CuRen) is a pioneering company specializing in the development of Copper Redox Flow Batteries, a sustainable and cost-effective solution for long-duration energy storage. Headquartered in Espoo, Finland, the company is dedicated to addressing renewable energy integration challenges by providing scalable, modular, and environmentally friendly energy storage systems. Supported by Aalto University and funded by Business Finland, Halide Energy aims to accelerate the transition to renewable energy sources.