A new system was proposed to harness energy from marine currents, with a capacity ranging between 2 and 10 MW, specifically designed to overcome the traditional difficulties of maintenance and repair at sea.

TidalStream is developing a low cost buoyancy-controlled platform that can provide up to 10 MW from a single installation, float-out deployment, and onboard maintenance access. The plant, called Triton, consists in 6-metre diameter turbines (2 to 6) mounted on twin floating vertical booms tethered to a gravity base on the seabed.