florrent is an energy technology company that produces supercapacitors using a proprietary bio-derived activated carbon called Contoured Carbon. Their material diverts domestic biomass waste from landfills and sequesters carbon while enabling high-power, lower-cost, smaller-footprint energy storage. florrent’s supercapacitors are made in the U.S. and designed to integrate front-of-meter and behind-the-meter, offering grid-forming capabilities, fast frequency response, and improved power quality. The company emphasizes social and environmental impact through sourcing strategies that create economic participation for historically underserved communities. florrent plans to scale production of Contoured Carbon, expand product development, and commercialize broadly while building a pilot manufacturing facility in Northampton, MA, scheduled to begin operations in 2026. The business frames its product as a solution to a reported $150B/year power quality problem during the ongoing grid transformation.

Total raised

$10M

Funding rounds

1

Latest round

Seed

Latest activity

Sep 2025