Elestor B.V.

Elestor B.V. is a Dutch deep-tech company founded in 2014, focused on developing and manufacturing large-scale stationary energy storage systems.

Utilizing proprietary hydrogen bromine (HBr) flow battery technology, Elestor aims to provide affordable and scalable solutions for a 100% clean electricity supply. The company is headquartered in Arnhem, Gelderland, Netherlands, and employs approximately 51–200 people. Elestor's core product is its industrial-scale electricity storage systems, which range from 50 to 10,000 kWh. These systems are designed with a patented flow battery system that uses abundant and low-cost materials like hydrogen and bromine. The technology offers the lowest Levelized Cost of Storage (LCoS) per kWh compared to conventional options, ensuring safety, longevity, and scalability. Elestor targets the international industrial market, focusing on applications such as grid-scale storage and replacing fossil fuel power plants, while also integrating with hydrogen infrastructures to enhance green hydrogen production. The company is currently installing pilot projects and preparing for automated production to meet growing industrial demand.