Halide Energy
Copper flow batteries for long-duration grid energy storage, sold to utilities, grid operators and industrial plants
Highlights
- Young companyFounded 2025
- New on EvolcAdded 2026-10-28
About Halide Energy
Halide Energy manufactures copper flow batteries for long-duration grid energy storage. The systems discharge for 4 to 12 hours at rated power, are based on recycled copper and readily available chemicals, and have a modular design that can be tailored to specific deployments. The website reports a typical cycle life of 25,000+ full charge and discharge cycles and a round-trip efficiency of 75%+.
Target customers are grid operators and utilities that need to offset demand-supply mismatch, energy-intensive industrial plants managing peak demand, and investors seeking exposure to grid-scale storage infrastructure.
Halide Energy is headquartered in Espoo, Finland, and was founded in 2025. It is one of the Partner Plaza companies at Aalto Design Factory, where it uses rapid prototyping facilities. The company received an ELY-Keskus grant for advanced copper flow battery development and was named a winner of the pitch battle at Startup Fair 2026.
Product: Modular copper flow battery energy storage systems with 4 to 12 hour discharge duration for grid and industrial use.
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