Verdant’s Free Flow turbine, a three-bladed, downstream, horizontal-axis device that has evolved through four generations of design since 1989, has been battle-hardened in the currents of New York City’s East River as part of the Roosevelt Island Tidal Energy (Rite) project.
For the Cornwall Ontario River Energy (Core) scheme in the St Lawrence River, which forms part of the boundary between Canada and the US, the technology is being adapted to suit a continuous-flow setting, rather than tidal cycles.
“The