Powering the blue economy: Meet the Clean Maritime Energy ventures of the AquaSphere 2026 Cohort
The energy transition has a geography problem. Wind and solar have transformed the grid in many parts of the world but they leave critical gaps: remote communities still running on diesel, maritime operations still dependent on fossil fuels, coastlines and rivers whose energy potential remains entirely untapped. The five ventures in the Clean Maritime Energy & Sustainable Infrastructure cluster of the AquaSphere 2026 Cohort are each attacking a different part of this problem, from hydrokinetic river systems to wind-assisted shipping, from wave energy to waste-heat recovery at sea. 🇩🇰 Millfield Technology ApS : Hydropower without dams Most hydropower requires dams, civil works, and years of permitting. Millfield Technology has built a different kind of system entirely. Its Millfield Flow Converter (MFC) generates electricity by harnessing river flow through a crane-like structure with horizontal and vertical wings, no dam, no major infrastructure, installed in a single day from a standard 40-foot container. Validated by the Technical University of Denmark and supported by 60+ investors,…

