Ambitious plans to build a first ocean-current turbine array in the fast-flowing US Gulf Stream off Florida have moved ahead with plans to pin-point layout at the project site, being developed by OceanBased Perpetual Energy (OPE).

OPE, which recently completed tests of the turbines at the site 20 miles (32km) off the coast, is installing so-called ADCP (acoustic doppler current profiler) systems, to check current velocities at “predetermined strategic locations in the full water column … to determine the optimal location” for the array.