Carbo Energy

Carbo Energy develops grid-scale battery storage systems based on hybrid non-aqueous redox flow battery technology. The company's batteries offer near-lithium energy density (190–200 Wh/L), zero fire risk due to non-pyrophoric chemistry, and a 40-year lifespan with greater than 8,000 charge cycles and less than 0.2% annual degradation. By utilizing waste industrial chemicals and captured carbon dioxide as active materials, Carbo Energy repurposes environmental hazards into long-duration energy storage assets, reducing reliance on rare earth minerals. The modular architecture allows power and energy capacity to scale independently, making it suitable for utility-scale deployments. The company participated in the Techstars Sustainability Paris Accelerator and is pursuing pilot projects in Argentina, Colombia, and Chile.